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Data race on GetNextConnection in round-robin #309

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sku4 opened this issue Jun 26, 2023 · 1 comment · Fixed by #312
Closed

Data race on GetNextConnection in round-robin #309

sku4 opened this issue Jun 26, 2023 · 1 comment · Fixed by #312
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1sp bug Something isn't working teamE

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@sku4
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sku4 commented Jun 26, 2023

Data race appear on nextIndex
As solution you can set mutex on Lock instead RLock
Thanks

==================
WARNING: DATA RACE
Read at 0x00c0001d8ae0 by goroutine 41:
github.com/tarantool/go-tarantool/v2/pool.(*roundRobinStrategy).nextIndex()
/Users/s.skubach/go/pkg/mod/github.com/tarantool/go-tarantool/v2@v2.0.0-20230614085627-6cddcd71029d/pool/round_robin.go:107 +0x4c
github.com/tarantool/go-tarantool/v2/pool.(*roundRobinStrategy).GetNextConnection()
/Users/s.skubach/go/pkg/mod/github.com/tarantool/go-tarantool/v2@v2.0.0-20230614085627-6cddcd71029d/pool/round_robin.go:80 +0x1b5
github.com/tarantool/go-tarantool/v2/pool.(*ConnectionPool).getNextConnection()
/Users/s.skubach/go/pkg/mod/github.com/tarantool/go-tarantool/v2@v2.0.0-20230614085627-6cddcd71029d/pool/connection_pool.go:1261 +0x25d
github.com/tarantool/go-tarantool/v2/pool.(*ConnectionPool).CallTyped()
/Users/s.skubach/go/pkg/mod/github.com/tarantool/go-tarantool/v2@v2.0.0-20230614085627-6cddcd71029d/pool/connection_pool.go:564 +0xb1

oleg-jukovec added a commit that referenced this issue Jun 27, 2023
The `r.current` value can be changed by concurrent threads because
the change happens under read-lock. We could use the atomic counter
for a current connection number to avoid the race condition.

Closes #309
@oleg-jukovec
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Collaborator

Thank you for the issue, I've created the fix: #312

The problem is not too critical: it should not lead to crashes. But a request can be sent to the same connection several times in a row.

@oleg-jukovec oleg-jukovec self-assigned this Jun 27, 2023
@oleg-jukovec oleg-jukovec added bug Something isn't working 1sp teamE labels Jun 27, 2023
oleg-jukovec added a commit that referenced this issue Jun 27, 2023
The `r.current` value can be changed by concurrent threads because
the change happens under read-lock. We could use the atomic counter
for a current connection number to avoid the race condition.

Closes #309
oleg-jukovec added a commit that referenced this issue Jun 28, 2023
The `r.current` value can be changed by concurrent threads because
the change happens under read-lock. We could use the atomic counter
for a current connection number to avoid the race condition.

Closes #309
oleg-jukovec added a commit that referenced this issue Jun 28, 2023
The `r.current` value can be changed by concurrent threads because
the change happens under read-lock. We could use the atomic counter
for a current connection number to avoid the race condition.

Closes #309
oleg-jukovec added a commit that referenced this issue Jun 28, 2023
The `r.current` value can be changed by concurrent threads because
the change happens under read-lock. We could use the atomic counter
for a current connection number to avoid the race condition.

Closes #309
oleg-jukovec added a commit that referenced this issue Aug 3, 2023
The `r.current` value can be changed by concurrent threads because
the change happens under read-lock. We could use the atomic counter
for a current connection number to avoid the race condition.

Closes #309

(cherry picked from dbfaab5)
oleg-jukovec added a commit that referenced this issue Aug 3, 2023
Overview

    The patch release with fixes from the master branch.

Breaking changes

    There are no breaking changes in the release.

Bugfixes

    Race condition at roundRobinStrategy.GetNextConnection() (#309)

    Incorrect decoding of an MP_DECIMAL when the `scale` value is
    negative (#314)

    Incorrect options (`after`, `batch_size` and `force_map_call`)
    setup for crud.SelectRequest (#320)

Other

    Change encoding of the queue.Identify() UUID argument from binary
    blob to plain string. Needed for upgrade to Tarantool 3.0, where a
    binary blob is decoded to a varbinary object (#313).
oleg-jukovec added a commit that referenced this issue Aug 3, 2023
Overview

    The patch release with fixes from the master branch.

Breaking changes

    There are no breaking changes in the release.

Bugfixes

    Race condition at roundRobinStrategy.GetNextConnection() (#309).

    Incorrect decoding of an MP_DECIMAL when the `scale` value is
    negative (#314).

    Incorrect options (`after`, `batch_size` and `force_map_call`)
    setup for crud.SelectRequest (#320).

Other

    Change encoding of the queue.Identify() UUID argument from binary
    blob to plain string. Needed for upgrade to Tarantool 3.0, where a
    binary blob is decoded to a varbinary object (#313).
oleg-jukovec added a commit that referenced this issue Aug 3, 2023
The `r.current` value can be changed by concurrent threads because
the change happens under read-lock. We could use the atomic counter
for a current connection number to avoid the race condition.

Closes #309

(cherry picked from dbfaab5)
oleg-jukovec added a commit that referenced this issue Aug 3, 2023
Overview

    The patch release imports fixes from the master branch.

Breaking changes

    There are no breaking changes in the release.

Bugfixes

    Flaky decimal/TestSelect (#300).

    Race condition at roundRobinStrategy.GetNextConnection() (#309).

    Incorrect decoding of an MP_DECIMAL when the `scale` value is
    negative (#314).

    Incorrect options (`after`, `batch_size` and `force_map_call`)
    setup for crud.SelectRequest (#320).

Other

    Change encoding of the queue.Identify() UUID argument from binary
    blob to plain string. Needed for upgrade to Tarantool 3.0, where a
    binary blob is decoded to a varbinary object (#313).
oleg-jukovec added a commit that referenced this issue Aug 7, 2023
The `r.current` value can be changed by concurrent threads because
the change happens under read-lock. We could use the atomic counter
for a current connection number to avoid the race condition.

Closes #309

(cherry picked from dbfaab5)
oleg-jukovec added a commit that referenced this issue Aug 7, 2023
Overview

    The patch release imports fixes from the master branch.

Breaking changes

    There are no breaking changes in the release.

Bugfixes

    Flaky decimal/TestSelect (#300).

    Race condition at roundRobinStrategy.GetNextConnection() (#309).

    Incorrect decoding of an MP_DECIMAL when the `scale` value is
    negative (#314).

    Incorrect options (`after`, `batch_size` and `force_map_call`)
    setup for crud.SelectRequest (#320).

Other

    Change encoding of the queue.Identify() UUID argument from binary
    blob to plain string. Needed for upgrade to Tarantool 3.0, where a
    binary blob is decoded to a varbinary object (#313).
oleg-jukovec added a commit that referenced this issue Feb 11, 2024
Overview

    There are a lot of changes in the new major version. The main ones:

    * The `go_tarantool_call_17` build tag is no longer needed, since
      by default the `CallRequest` is `Call17Request`.
    * The `go_tarantool_msgpack_v5` build tag is no longer needed,
      since only the `msgpack/v5` library is used.
    * The `go_tarantool_ssl_disable` build tag is no longer needed,
      since the connector is no longer depends on `OpenSSL` by default.
      You could use the external library go-tlsdialer[1] to create a
      connection with the `ssl` transport.
    * Required Go version is `1.20` now.
    * The `Connect` function became more flexible. It now allows
      to create a connection with cancellation and a custom `Dialer`
      implementation.
    * It is required to use `Request` implementation types with the
      `Connection.Do` method instead of `Connection.<Request>` methods.
    * The `connection_pool` package renamed to `pool`.

    See the migration guide[2] for more details.

Breaking changes

    connection_pool renamed to pool (#239).

    Use msgpack/v5 instead of msgpack.v2 (#236).

    Call/NewCallRequest = Call17/NewCall17Request (#235).

    Change encoding of the queue.Identify() UUID argument from binary
    blob to plain string. Needed for upgrade to Tarantool 3.0, where a
    binary blob is decoded to a varbinary object (#313).

    Use objects of the Decimal type instead of pointers (#238).

    Use objects of the Datetime type instead of pointers (#238).

    `connection.Connect` no longer return non-working connection
    objects (#136). This function now does not attempt to reconnect
    and tries to establish a connection only once. Function might be
    canceled via context. Context accepted as first argument.
    `pool.Connect` and `pool.Add` now accept context as the first
    argument, which user may cancel in process. If `pool.Connect` is
    canceled in progress, an error will be returned. All created
    connections will be closed.

    `iproto.Feature` type now used instead of `ProtocolFeature` (#337).

    `iproto.IPROTO_FEATURE_` constants now used instead of local
    `Feature` constants for `protocol` (#337).

    Change `crud` operations `Timeout` option type to `crud.OptFloat64`
    instead of `crud.OptUint` (#342).

    Change all `Upsert` and `Update` requests to accept
    `*tarantool.Operations`  as `ops` parameters instead of
    `interface{}` (#348).

    Change `OverrideSchema(*Schema)` to `SetSchema(Schema)` (#7).

    Change values, stored by pointers in the `Schema`, `Space`,
    `Index` structs,  to be stored by their values (#7).

    Make `Dialer` mandatory for creation a single connection (#321).

    Remove `Connection.RemoteAddr()`, `Connection.LocalAddr()`.
    Add `Addr()` function instead (#321).

    Remove `Connection.ClientProtocolInfo`,
    `Connection.ServerProtocolInfo`. Add `ProtocolInfo()` function
    instead, which returns the server protocol info (#321).

    `NewWatcher` checks the actual features of the server, rather
    than relying on the features provided by the user during connection
    creation (#321).

    `pool.NewWatcher` does not create watchers for connections that do
    not support it (#321).

    Rename `pool.GetPoolInfo` to `pool.GetInfo`. Change return type to
    `map[string]ConnectionInfo` (#321).

    `Response` is now an interface (#237).

    All responses are now implementations of the `Response`
    interface (#237). `SelectResponse`, `ExecuteResponse`,
    `PrepareResponse`, `PushResponse` are part of a public API.
    `Pos()`, `MetaData()`, `SQLInfo()` methods created for them to
    get specific info. Special types of responses are used with
    special requests.

    `IsPush()` method is added to the response iterator (#237). It
    returns the information if the current response is a
    `PushResponse`. `PushCode` constant is removed.

    Method `Get` for `Future` now returns response data (#237). To get
    the actual response new `GetResponse` method has been added.
    Methods `AppendPush` and `SetResponse` accept response `Header`
    and data as their arguments.

    `Future` constructors now accept `Request` as their argument
    (#237).

    Operations `Ping`, `Select`, `Insert`, `Replace`, `Delete`,
    `Update`, `Upsert`, `Call`, `Call16`, `Call17`, `Eval`, `Execute`
    of a `Connector` and `Pooler` return response data instead of an
    actual responses (#237).

    `pool.Connect`, `pool.ConnetcWithOpts` and `pool.Add` use a
    new type `pool.Instance` to determinate connection options (#356).

    `pool.Connect`, `pool.ConnectWithOpts` and `pool.Add` add
    connections to the pool even it is unable to connect to it (#372).

    Required Go version from `1.13` to `1.20` (#378).

    multi subpackage is removed (#240).

    msgpack.v2 support is removed (#236).

    pool/RoundRobinStrategy is removed (#158).

    DeadlineIO is removed (#158).

    UUID_extId is removed (#158).

    IPROTO constants are removed (#158).

    Code() method from the Request interface is removed (#158).

    `Schema` field from the `Connection` struct is removed (#7).

    `OkCode` and `PushCode` constants is removed (#237).

    SSL support is removed (#301).

    `Future.Err()` method is removed (#382).

New features

    Type() method to the Request interface (#158).

    Enumeration types for RLimitAction/iterators (#158).

    IsNullable flag for Field (#302).

    More linters on CI (#310).

    Meaningful description for read/write socket errors (#129).

    Support `operation_data` in `crud.Error` (#330).

    Support `fetch_latest_metadata` option for crud requests with
    metadata (#335).

    Support `noreturn` option for data change crud requests (#335).

    Support `crud.schema` request (#336, #351).

    Support `IPROTO_WATCH_ONCE` request type for Tarantool
    version >= 3.0.0-alpha1 (#337).

    Support `yield_every` option for crud select requests (#350).

    Support `IPROTO_FEATURE_SPACE_AND_INDEX_NAMES` for Tarantool
    version >= 3.0.0-alpha1 (#338). It allows to use space and index
    names in requests instead of their IDs.

    `GetSchema` function to get the actual schema (#7).

    Support connection via an existing socket fd (#321).

    `Header` struct for the response header (#237). It can be accessed
    via `Header()` method of the `Response` interface.

   `Response` method added to the `Request` interface (#237).

   New `LogAppendPushFailed` connection log constant (#237).
   It is logged when connection fails to append a push response.

   `ErrorNo` constant that indicates that no error has occurred while
   getting the response (#237).

   `AuthDialer` type for creating a dialer with authentication (#301).

   `ProtocolDialer` type for creating a dialer with `ProtocolInfo`
   receiving and  check (#301).

   `GreetingDialer` type for creating a dialer, that fills `Greeting`
   of a connection (#301).

   New method `Pool.DoInstance` to execute a request on a target
   instance in a pool (#376).

Bugfixes

    Race condition at roundRobinStrategy.GetNextConnection() (#309).

    Incorrect decoding of an MP_DECIMAL when the `scale` value is
    negative (#314).

    Incorrect options (`after`, `batch_size` and `force_map_call`)
    setup for crud.SelectRequest (#320).

    Incorrect options (`vshard_router`, `fields`, `bucket_id`, `mode`,
    `prefer_replica`, `balance`) setup for crud.GetRequest (#335)

    Splice update operation accepts 3 arguments instead of 5 (#348).

    Unable to use a slice of custom types as a slice of tuples or
    objects for `crud.*ManyRequest/crud.*ObjectManyRequest` (#365).

Testing

    Added an ability to mock connections for tests (#237). Added new
    types `MockDoer`, `MockRequest` to `test_helpers`.

    Flaky decimal/TestSelect (#300).

    Tests with crud 1.4.0 (#336).

    Tests with case sensitive SQL (#341).

    Renamed `StrangerResponse` to `MockResponse` (#237).

Other

    All Connection.<Request>, Connection.<Request>Typed and
    Connection.<Request>Async methods are now deprecated. Instead you
    should use requests objects + Connection.Do() (#241).

    All ConnectionPool.<Request>, ConnectionPool.<Request>Typed and
    ConnectionPool.<Request>Async methods are now deprecated. Instead
    you should use requests objects + ConnectionPool.Do() (#241).

    box.session.push() usage is deprecated: Future.AppendPush() and
    Future.GetIterator() methods, ResponseIterator and
    TimeoutResponseIterator types (#324).

1. https://github.com/tarantool/go-tlsdialer
2. https://github.com/tarantool/go-tarantool/blob/master/MIGRATION.md
oleg-jukovec added a commit that referenced this issue Feb 11, 2024
Overview

    There are a lot of changes in the new major version. The main ones:

    * The `go_tarantool_call_17` build tag is no longer needed, since
      by default the `CallRequest` is `Call17Request`.
    * The `go_tarantool_msgpack_v5` build tag is no longer needed,
      since only the `msgpack/v5` library is used.
    * The `go_tarantool_ssl_disable` build tag is no longer needed,
      since the connector is no longer depends on `OpenSSL` by default.
      You could use the external library go-tlsdialer[1] to create a
      connection with the `ssl` transport.
    * Required Go version is `1.20` now.
    * The `Connect` function became more flexible. It now allows
      to create a connection with cancellation and a custom `Dialer`
      implementation.
    * It is required to use `Request` implementation types with the
      `Connection.Do` method instead of `Connection.<Request>` methods.
    * The `connection_pool` package renamed to `pool`.

    See the migration guide[2] for more details.

Breaking changes

    connection_pool renamed to pool (#239).

    Use msgpack/v5 instead of msgpack.v2 (#236).

    Call/NewCallRequest = Call17/NewCall17Request (#235).

    Change encoding of the queue.Identify() UUID argument from binary
    blob to plain string. Needed for upgrade to Tarantool 3.0, where a
    binary blob is decoded to a varbinary object (#313).

    Use objects of the Decimal type instead of pointers (#238).

    Use objects of the Datetime type instead of pointers (#238).

    `connection.Connect` no longer return non-working connection
    objects (#136). This function now does not attempt to reconnect
    and tries to establish a connection only once. Function might be
    canceled via context. Context accepted as first argument.
    `pool.Connect` and `pool.Add` now accept context as the first
    argument, which user may cancel in process. If `pool.Connect` is
    canceled in progress, an error will be returned. All created
    connections will be closed.

    `iproto.Feature` type now used instead of `ProtocolFeature` (#337).

    `iproto.IPROTO_FEATURE_` constants now used instead of local
    `Feature` constants for `protocol` (#337).

    Change `crud` operations `Timeout` option type to `crud.OptFloat64`
    instead of `crud.OptUint` (#342).

    Change all `Upsert` and `Update` requests to accept
    `*tarantool.Operations`  as `ops` parameters instead of
    `interface{}` (#348).

    Change `OverrideSchema(*Schema)` to `SetSchema(Schema)` (#7).

    Change values, stored by pointers in the `Schema`, `Space`,
    `Index` structs,  to be stored by their values (#7).

    Make `Dialer` mandatory for creation a single connection (#321).

    Remove `Connection.RemoteAddr()`, `Connection.LocalAddr()`.
    Add `Addr()` function instead (#321).

    Remove `Connection.ClientProtocolInfo`,
    `Connection.ServerProtocolInfo`. Add `ProtocolInfo()` function
    instead, which returns the server protocol info (#321).

    `NewWatcher` checks the actual features of the server, rather
    than relying on the features provided by the user during connection
    creation (#321).

    `pool.NewWatcher` does not create watchers for connections that do
    not support it (#321).

    Rename `pool.GetPoolInfo` to `pool.GetInfo`. Change return type to
    `map[string]ConnectionInfo` (#321).

    `Response` is now an interface (#237).

    All responses are now implementations of the `Response`
    interface (#237). `SelectResponse`, `ExecuteResponse`,
    `PrepareResponse`, `PushResponse` are part of a public API.
    `Pos()`, `MetaData()`, `SQLInfo()` methods created for them to
    get specific info. Special types of responses are used with
    special requests.

    `IsPush()` method is added to the response iterator (#237). It
    returns the information if the current response is a
    `PushResponse`. `PushCode` constant is removed.

    Method `Get` for `Future` now returns response data (#237). To get
    the actual response new `GetResponse` method has been added.
    Methods `AppendPush` and `SetResponse` accept response `Header`
    and data as their arguments.

    `Future` constructors now accept `Request` as their argument
    (#237).

    Operations `Ping`, `Select`, `Insert`, `Replace`, `Delete`,
    `Update`, `Upsert`, `Call`, `Call16`, `Call17`, `Eval`, `Execute`
    of a `Connector` and `Pooler` return response data instead of an
    actual responses (#237).

    `pool.Connect`, `pool.ConnetcWithOpts` and `pool.Add` use a
    new type `pool.Instance` to determinate connection options (#356).

    `pool.Connect`, `pool.ConnectWithOpts` and `pool.Add` add
    connections to the pool even it is unable to connect to it (#372).

    Required Go version from `1.13` to `1.20` (#378).

    multi subpackage is removed (#240).

    msgpack.v2 support is removed (#236).

    pool/RoundRobinStrategy is removed (#158).

    DeadlineIO is removed (#158).

    UUID_extId is removed (#158).

    IPROTO constants are removed (#158).

    Code() method from the Request interface is removed (#158).

    `Schema` field from the `Connection` struct is removed (#7).

    `OkCode` and `PushCode` constants is removed (#237).

    SSL support is removed (#301).

    `Future.Err()` method is removed (#382).

New features

    Type() method to the Request interface (#158).

    Enumeration types for RLimitAction/iterators (#158).

    IsNullable flag for Field (#302).

    More linters on CI (#310).

    Meaningful description for read/write socket errors (#129).

    Support `operation_data` in `crud.Error` (#330).

    Support `fetch_latest_metadata` option for crud requests with
    metadata (#335).

    Support `noreturn` option for data change crud requests (#335).

    Support `crud.schema` request (#336, #351).

    Support `IPROTO_WATCH_ONCE` request type for Tarantool
    version >= 3.0.0-alpha1 (#337).

    Support `yield_every` option for crud select requests (#350).

    Support `IPROTO_FEATURE_SPACE_AND_INDEX_NAMES` for Tarantool
    version >= 3.0.0-alpha1 (#338). It allows to use space and index
    names in requests instead of their IDs.

    `GetSchema` function to get the actual schema (#7).

    Support connection via an existing socket fd (#321).

    `Header` struct for the response header (#237). It can be accessed
    via `Header()` method of the `Response` interface.

   `Response` method added to the `Request` interface (#237).

   New `LogAppendPushFailed` connection log constant (#237).
   It is logged when connection fails to append a push response.

   `ErrorNo` constant that indicates that no error has occurred while
   getting the response (#237).

   `AuthDialer` type for creating a dialer with authentication (#301).

   `ProtocolDialer` type for creating a dialer with `ProtocolInfo`
   receiving and  check (#301).

   `GreetingDialer` type for creating a dialer, that fills `Greeting`
   of a connection (#301).

   New method `Pool.DoInstance` to execute a request on a target
   instance in a pool (#376).

Bugfixes

    Race condition at roundRobinStrategy.GetNextConnection() (#309).

    Incorrect decoding of an MP_DECIMAL when the `scale` value is
    negative (#314).

    Incorrect options (`after`, `batch_size` and `force_map_call`)
    setup for crud.SelectRequest (#320).

    Incorrect options (`vshard_router`, `fields`, `bucket_id`, `mode`,
    `prefer_replica`, `balance`) setup for crud.GetRequest (#335).

    Splice update operation accepts 3 arguments instead of 5 (#348).

    Unable to use a slice of custom types as a slice of tuples or
    objects for `crud.*ManyRequest/crud.*ObjectManyRequest` (#365).

Testing

    Added an ability to mock connections for tests (#237). Added new
    types `MockDoer`, `MockRequest` to `test_helpers`.

    Fixed flaky decimal/TestSelect (#300).

    Fixed tests with crud 1.4.0 (#336).

    Fixed tests with case sensitive SQL (#341).

    Renamed `StrangerResponse` to `MockResponse` (#237).

Other

    All Connection.<Request>, Connection.<Request>Typed and
    Connection.<Request>Async methods are now deprecated. Instead you
    should use requests objects + Connection.Do() (#241).

    All ConnectionPool.<Request>, ConnectionPool.<Request>Typed and
    ConnectionPool.<Request>Async methods are now deprecated. Instead
    you should use requests objects + ConnectionPool.Do() (#241).

    box.session.push() usage is deprecated: Future.AppendPush() and
    Future.GetIterator() methods, ResponseIterator and
    TimeoutResponseIterator types (#324).

1. https://github.com/tarantool/go-tlsdialer
2. https://github.com/tarantool/go-tarantool/blob/master/MIGRATION.md
oleg-jukovec added a commit that referenced this issue Feb 11, 2024
Overview

    There are a lot of changes in the new major version. The main ones:

    * The `go_tarantool_call_17` build tag is no longer needed, since
      by default the `CallRequest` is `Call17Request`.
    * The `go_tarantool_msgpack_v5` build tag is no longer needed,
      since only the `msgpack/v5` library is used.
    * The `go_tarantool_ssl_disable` build tag is no longer needed,
      since the connector is no longer depends on `OpenSSL` by default.
      You could use the external library go-tlsdialer[1] to create a
      connection with the `ssl` transport.
    * Required Go version is `1.20` now.
    * The `Connect` function became more flexible. It now allows
      to create a connection with cancellation and a custom `Dialer`
      implementation.
    * It is required to use `Request` implementation types with the
      `Connection.Do` method instead of `Connection.<Request>` methods.
    * The `connection_pool` package renamed to `pool`.

    See the migration guide[2] for more details.

Breaking changes

    connection_pool renamed to pool (#239).

    Use msgpack/v5 instead of msgpack.v2 (#236).

    Call/NewCallRequest = Call17/NewCall17Request (#235).

    Change encoding of the queue.Identify() UUID argument from binary
    blob to plain string. Needed for upgrade to Tarantool 3.0, where a
    binary blob is decoded to a varbinary object (#313).

    Use objects of the Decimal type instead of pointers (#238).

    Use objects of the Datetime type instead of pointers (#238).

    `connection.Connect` no longer return non-working connection
    objects (#136). This function now does not attempt to reconnect
    and tries to establish a connection only once. Function might be
    canceled via context. Context accepted as first argument.
    `pool.Connect` and `pool.Add` now accept context as the first
    argument, which user may cancel in process. If `pool.Connect` is
    canceled in progress, an error will be returned. All created
    connections will be closed.

    `iproto.Feature` type now used instead of `ProtocolFeature` (#337).

    `iproto.IPROTO_FEATURE_` constants now used instead of local
    `Feature` constants for `protocol` (#337).

    Change `crud` operations `Timeout` option type to `crud.OptFloat64`
    instead of `crud.OptUint` (#342).

    Change all `Upsert` and `Update` requests to accept
    `*tarantool.Operations`  as `ops` parameters instead of
    `interface{}` (#348).

    Change `OverrideSchema(*Schema)` to `SetSchema(Schema)` (#7).

    Change values, stored by pointers in the `Schema`, `Space`,
    `Index` structs,  to be stored by their values (#7).

    Make `Dialer` mandatory for creation a single connection (#321).

    Remove `Connection.RemoteAddr()`, `Connection.LocalAddr()`.
    Add `Addr()` function instead (#321).

    Remove `Connection.ClientProtocolInfo`,
    `Connection.ServerProtocolInfo`. Add `ProtocolInfo()` function
    instead, which returns the server protocol info (#321).

    `NewWatcher` checks the actual features of the server, rather
    than relying on the features provided by the user during connection
    creation (#321).

    `pool.NewWatcher` does not create watchers for connections that do
    not support it (#321).

    Rename `pool.GetPoolInfo` to `pool.GetInfo`. Change return type to
    `map[string]ConnectionInfo` (#321).

    `Response` is now an interface (#237).

    All responses are now implementations of the `Response`
    interface (#237). `SelectResponse`, `ExecuteResponse`,
    `PrepareResponse`, `PushResponse` are part of a public API.
    `Pos()`, `MetaData()`, `SQLInfo()` methods created for them to
    get specific info. Special types of responses are used with
    special requests.

    `IsPush()` method is added to the response iterator (#237). It
    returns the information if the current response is a
    `PushResponse`. `PushCode` constant is removed.

    Method `Get` for `Future` now returns response data (#237). To get
    the actual response new `GetResponse` method has been added.
    Methods `AppendPush` and `SetResponse` accept response `Header`
    and data as their arguments.

    `Future` constructors now accept `Request` as their argument
    (#237).

    Operations `Ping`, `Select`, `Insert`, `Replace`, `Delete`,
    `Update`, `Upsert`, `Call`, `Call16`, `Call17`, `Eval`, `Execute`
    of a `Connector` and `Pooler` return response data instead of an
    actual responses (#237).

    `pool.Connect`, `pool.ConnetcWithOpts` and `pool.Add` use a
    new type `pool.Instance` to determinate connection options (#356).

    `pool.Connect`, `pool.ConnectWithOpts` and `pool.Add` add
    connections to the pool even it is unable to connect to it (#372).

    Required Go version from `1.13` to `1.20` (#378).

    multi subpackage is removed (#240).

    msgpack.v2 support is removed (#236).

    pool/RoundRobinStrategy is removed (#158).

    DeadlineIO is removed (#158).

    UUID_extId is removed (#158).

    IPROTO constants are removed (#158).

    Code() method from the Request interface is removed (#158).

    `Schema` field from the `Connection` struct is removed (#7).

    `OkCode` and `PushCode` constants is removed (#237).

    SSL support is removed (#301).

    `Future.Err()` method is removed (#382).

New features

    Type() method to the Request interface (#158).

    Enumeration types for RLimitAction/iterators (#158).

    IsNullable flag for Field (#302).

    Meaningful description for read/write socket errors (#129).

    Support `operation_data` in `crud.Error` (#330).

    Support `fetch_latest_metadata` option for crud requests with
    metadata (#335).

    Support `noreturn` option for data change crud requests (#335).

    Support `crud.schema` request (#336, #351).

    Support `IPROTO_WATCH_ONCE` request type for Tarantool
    version >= 3.0.0-alpha1 (#337).

    Support `yield_every` option for crud select requests (#350).

    Support `IPROTO_FEATURE_SPACE_AND_INDEX_NAMES` for Tarantool
    version >= 3.0.0-alpha1 (#338). It allows to use space and index
    names in requests instead of their IDs.

    `GetSchema` function to get the actual schema (#7).

    Support connection via an existing socket fd (#321).

    `Header` struct for the response header (#237). It can be accessed
    via `Header()` method of the `Response` interface.

   `Response` method added to the `Request` interface (#237).

   New `LogAppendPushFailed` connection log constant (#237).
   It is logged when connection fails to append a push response.

   `ErrorNo` constant that indicates that no error has occurred while
   getting the response (#237).

   `AuthDialer` type for creating a dialer with authentication (#301).

   `ProtocolDialer` type for creating a dialer with `ProtocolInfo`
   receiving and  check (#301).

   `GreetingDialer` type for creating a dialer, that fills `Greeting`
   of a connection (#301).

   New method `Pool.DoInstance` to execute a request on a target
   instance in a pool (#376).

Bugfixes

    Race condition at roundRobinStrategy.GetNextConnection() (#309).

    Incorrect decoding of an MP_DECIMAL when the `scale` value is
    negative (#314).

    Incorrect options (`after`, `batch_size` and `force_map_call`)
    setup for crud.SelectRequest (#320).

    Incorrect options (`vshard_router`, `fields`, `bucket_id`, `mode`,
    `prefer_replica`, `balance`) setup for crud.GetRequest (#335).

    Splice update operation accepts 3 arguments instead of 5 (#348).

    Unable to use a slice of custom types as a slice of tuples or
    objects for `crud.*ManyRequest/crud.*ObjectManyRequest` (#365).

Testing

    More linters on CI (#310).

    Added an ability to mock connections for tests (#237). Added new
    types `MockDoer`, `MockRequest` to `test_helpers`.

    Fixed flaky decimal/TestSelect (#300).

    Fixed tests with crud 1.4.0 (#336).

    Fixed tests with case sensitive SQL (#341).

    Renamed `StrangerResponse` to `MockResponse` (#237).

Other

    All Connection.<Request>, Connection.<Request>Typed and
    Connection.<Request>Async methods are now deprecated. Instead you
    should use requests objects + Connection.Do() (#241).

    All ConnectionPool.<Request>, ConnectionPool.<Request>Typed and
    ConnectionPool.<Request>Async methods are now deprecated. Instead
    you should use requests objects + ConnectionPool.Do() (#241).

    box.session.push() usage is deprecated: Future.AppendPush() and
    Future.GetIterator() methods, ResponseIterator and
    TimeoutResponseIterator types (#324).

1. https://github.com/tarantool/go-tlsdialer
2. https://github.com/tarantool/go-tarantool/blob/master/MIGRATION.md
oleg-jukovec added a commit that referenced this issue Feb 11, 2024
Overview

    There are a lot of changes in the new major version. The main ones:

    * The `go_tarantool_call_17` build tag is no longer needed, since
      by default the `CallRequest` is `Call17Request`.
    * The `go_tarantool_msgpack_v5` build tag is no longer needed,
      since only the `msgpack/v5` library is used.
    * The `go_tarantool_ssl_disable` build tag is no longer needed,
      since the connector is no longer depends on `OpenSSL` by default.
      You could use the external library go-tlsdialer[1] to create a
      connection with the `ssl` transport.
    * Required Go version is `1.20` now.
    * The `Connect` function became more flexible. It now allows
      to create a connection with cancellation and a custom `Dialer`
      implementation.
    * It is required to use `Request` implementation types with the
      `Connection.Do` method instead of `Connection.<Request>` methods.
    * The `connection_pool` package renamed to `pool`.

    See the migration guide[2] for more details.

Breaking changes

    connection_pool renamed to pool (#239).

    Use msgpack/v5 instead of msgpack.v2 (#236).

    Call/NewCallRequest = Call17/NewCall17Request (#235).

    Change encoding of the queue.Identify() UUID argument from binary
    blob to plain string. Needed for upgrade to Tarantool 3.0, where a
    binary blob is decoded to a varbinary object (#313).

    Use objects of the Decimal type instead of pointers (#238).

    Use objects of the Datetime type instead of pointers (#238).

    `connection.Connect` no longer return non-working connection
    objects (#136). This function now does not attempt to reconnect
    and tries to establish a connection only once. Function might be
    canceled via context. Context accepted as first argument.
    `pool.Connect` and `pool.Add` now accept context as the first
    argument, which user may cancel in process. If `pool.Connect` is
    canceled in progress, an error will be returned. All created
    connections will be closed.

    `iproto.Feature` type now used instead of `ProtocolFeature` (#337).

    `iproto.IPROTO_FEATURE_` constants now used instead of local
    `Feature` constants for `protocol` (#337).

    Change `crud` operations `Timeout` option type to `crud.OptFloat64`
    instead of `crud.OptUint` (#342).

    Change all `Upsert` and `Update` requests to accept
    `*tarantool.Operations`  as `ops` parameters instead of
    `interface{}` (#348).

    Change `OverrideSchema(*Schema)` to `SetSchema(Schema)` (#7).

    Change values, stored by pointers in the `Schema`, `Space`,
    `Index` structs,  to be stored by their values (#7).

    Make `Dialer` mandatory for creation a single connection (#321).

    Remove `Connection.RemoteAddr()`, `Connection.LocalAddr()`.
    Add `Addr()` function instead (#321).

    Remove `Connection.ClientProtocolInfo`,
    `Connection.ServerProtocolInfo`. Add `ProtocolInfo()` function
    instead, which returns the server protocol info (#321).

    `NewWatcher` checks the actual features of the server, rather
    than relying on the features provided by the user during connection
    creation (#321).

    `pool.NewWatcher` does not create watchers for connections that do
    not support it (#321).

    Rename `pool.GetPoolInfo` to `pool.GetInfo`. Change return type to
    `map[string]ConnectionInfo` (#321).

    `Response` is now an interface (#237).

    All responses are now implementations of the `Response`
    interface (#237). `SelectResponse`, `ExecuteResponse`,
    `PrepareResponse`, `PushResponse` are part of a public API.
    `Pos()`, `MetaData()`, `SQLInfo()` methods created for them to
    get specific info. Special types of responses are used with
    special requests.

    `IsPush()` method is added to the response iterator (#237). It
    returns the information if the current response is a
    `PushResponse`. `PushCode` constant is removed.

    Method `Get` for `Future` now returns response data (#237). To get
    the actual response new `GetResponse` method has been added.
    Methods `AppendPush` and `SetResponse` accept response `Header`
    and data as their arguments.

    `Future` constructors now accept `Request` as their argument
    (#237).

    Operations `Ping`, `Select`, `Insert`, `Replace`, `Delete`,
    `Update`, `Upsert`, `Call`, `Call16`, `Call17`, `Eval`, `Execute`
    of a `Connector` and `Pooler` return response data instead of an
    actual responses (#237).

    `pool.Connect`, `pool.ConnetcWithOpts` and `pool.Add` use a
    new type `pool.Instance` to determinate connection options (#356).

    `pool.Connect`, `pool.ConnectWithOpts` and `pool.Add` add
    connections to the pool even it is unable to connect to it (#372).

    Required Go version from `1.13` to `1.20` (#378).

    multi subpackage is removed (#240).

    msgpack.v2 support is removed (#236).

    pool/RoundRobinStrategy is removed (#158).

    DeadlineIO is removed (#158).

    UUID_extId is removed (#158).

    IPROTO constants are removed (#158).

    Code() method from the Request interface is removed (#158).

    `Schema` field from the `Connection` struct is removed (#7).

    `OkCode` and `PushCode` constants is removed (#237).

    SSL support is removed (#301).

    `Future.Err()` method is removed (#382).

New features

    Type() method to the Request interface (#158).

    Enumeration types for RLimitAction/iterators (#158).

    IsNullable flag for Field (#302).

    Meaningful description for read/write socket errors (#129).

    Support `operation_data` in `crud.Error` (#330).

    Support `fetch_latest_metadata` option for crud requests with
    metadata (#335).

    Support `noreturn` option for data change crud requests (#335).

    Support `crud.schema` request (#336, #351).

    Support `IPROTO_WATCH_ONCE` request type for Tarantool
    version >= 3.0.0-alpha1 (#337).

    Support `yield_every` option for crud select requests (#350).

    Support `IPROTO_FEATURE_SPACE_AND_INDEX_NAMES` for Tarantool
    version >= 3.0.0-alpha1 (#338). It allows to use space and index
    names in requests instead of their IDs.

    `GetSchema` function to get the actual schema (#7).

    Support connection via an existing socket fd (#321).

    `Header` struct for the response header (#237). It can be accessed
    via `Header()` method of the `Response` interface.

   `Response` method added to the `Request` interface (#237).

   New `LogAppendPushFailed` connection log constant (#237).
   It is logged when connection fails to append a push response.

   `ErrorNo` constant that indicates that no error has occurred while
   getting the response (#237).

   `AuthDialer` type for creating a dialer with authentication (#301).

   `ProtocolDialer` type for creating a dialer with `ProtocolInfo`
   receiving and  check (#301).

   `GreetingDialer` type for creating a dialer, that fills `Greeting`
   of a connection (#301).

   New method `Pool.DoInstance` to execute a request on a target
   instance in a pool (#376).

Bugfixes

    Race condition at roundRobinStrategy.GetNextConnection() (#309).

    Incorrect decoding of an MP_DECIMAL when the `scale` value is
    negative (#314).

    Incorrect options (`after`, `batch_size` and `force_map_call`)
    setup for crud.SelectRequest (#320).

    Incorrect options (`vshard_router`, `fields`, `bucket_id`, `mode`,
    `prefer_replica`, `balance`) setup for crud.GetRequest (#335).

    Splice update operation accepts 3 arguments instead of 5 (#348).

    Unable to use a slice of custom types as a slice of tuples or
    objects for `crud.*ManyRequest/crud.*ObjectManyRequest` (#365).

Testing

    More linters on CI (#310).

    Added an ability to mock connections for tests (#237). Added new
    types `MockDoer`, `MockRequest` to `test_helpers`.

    Fixed flaky decimal/TestSelect (#300).

    Fixed tests with crud 1.4.0 (#336).

    Fixed tests with case sensitive SQL (#341).

    Renamed `StrangerResponse` to `MockResponse` (#237).

Other

    All Connection.<Request>, Connection.<Request>Typed and
    Connection.<Request>Async methods are now deprecated. Instead you
    should use requests objects + Connection.Do() (#241).

    All ConnectionPool.<Request>, ConnectionPool.<Request>Typed and
    ConnectionPool.<Request>Async methods are now deprecated. Instead
    you should use requests objects + ConnectionPool.Do() (#241).

    box.session.push() usage is deprecated: Future.AppendPush() and
    Future.GetIterator() methods, ResponseIterator and
    TimeoutResponseIterator types (#324).

1. https://github.com/tarantool/go-tlsdialer
2. https://github.com/tarantool/go-tarantool/blob/master/MIGRATION.md
oleg-jukovec added a commit that referenced this issue Feb 12, 2024
Overview

    There are a lot of changes in the new major version. The main ones:

    * The `go_tarantool_call_17` build tag is no longer needed, since
      by default the `CallRequest` is `Call17Request`.
    * The `go_tarantool_msgpack_v5` build tag is no longer needed,
      since only the `msgpack/v5` library is used.
    * The `go_tarantool_ssl_disable` build tag is no longer needed,
      since the connector is no longer depends on `OpenSSL` by default.
      You could use the external library go-tlsdialer[1] to create a
      connection with the `ssl` transport.
    * Required Go version is `1.20` now.
    * The `Connect` function became more flexible. It now allows
      to create a connection with cancellation and a custom `Dialer`
      implementation.
    * It is required to use `Request` implementation types with the
      `Connection.Do` method instead of `Connection.<Request>` methods.
    * The `connection_pool` package renamed to `pool`.

    See the migration guide[2] for more details.

Breaking changes

    connection_pool renamed to pool (#239).

    Use msgpack/v5 instead of msgpack.v2 (#236).

    Call/NewCallRequest = Call17/NewCall17Request (#235).

    Change encoding of the queue.Identify() UUID argument from binary
    blob to plain string. Needed for upgrade to Tarantool 3.0, where a
    binary blob is decoded to a varbinary object (#313).

    Use objects of the Decimal type instead of pointers (#238).

    Use objects of the Datetime type instead of pointers (#238).

    `connection.Connect` no longer return non-working connection
    objects (#136). This function now does not attempt to reconnect
    and tries to establish a connection only once. Function might be
    canceled via context. Context accepted as first argument.
    `pool.Connect` and `pool.Add` now accept context as the first
    argument, which user may cancel in process. If `pool.Connect` is
    canceled in progress, an error will be returned. All created
    connections will be closed.

    `iproto.Feature` type now used instead of `ProtocolFeature` (#337).

    `iproto.IPROTO_FEATURE_` constants now used instead of local
    `Feature` constants for `protocol` (#337).

    Change `crud` operations `Timeout` option type to `crud.OptFloat64`
    instead of `crud.OptUint` (#342).

    Change all `Upsert` and `Update` requests to accept
    `*tarantool.Operations`  as `ops` parameters instead of
    `interface{}` (#348).

    Change `OverrideSchema(*Schema)` to `SetSchema(Schema)` (#7).

    Change values, stored by pointers in the `Schema`, `Space`,
    `Index` structs,  to be stored by their values (#7).

    Make `Dialer` mandatory for creation a single connection (#321).

    Remove `Connection.RemoteAddr()`, `Connection.LocalAddr()`.
    Add `Addr()` function instead (#321).

    Remove `Connection.ClientProtocolInfo`,
    `Connection.ServerProtocolInfo`. Add `ProtocolInfo()` function
    instead, which returns the server protocol info (#321).

    `NewWatcher` checks the actual features of the server, rather
    than relying on the features provided by the user during connection
    creation (#321).

    `pool.NewWatcher` does not create watchers for connections that do
    not support it (#321).

    Rename `pool.GetPoolInfo` to `pool.GetInfo`. Change return type to
    `map[string]ConnectionInfo` (#321).

    `Response` is now an interface (#237).

    All responses are now implementations of the `Response`
    interface (#237). `SelectResponse`, `ExecuteResponse`,
    `PrepareResponse`, `PushResponse` are part of a public API.
    `Pos()`, `MetaData()`, `SQLInfo()` methods created for them to
    get specific info. Special types of responses are used with
    special requests.

    `IsPush()` method is added to the response iterator (#237). It
    returns the information if the current response is a
    `PushResponse`. `PushCode` constant is removed.

    Method `Get` for `Future` now returns response data (#237). To get
    the actual response new `GetResponse` method has been added.
    Methods `AppendPush` and `SetResponse` accept response `Header`
    and data as their arguments.

    `Future` constructors now accept `Request` as their argument
    (#237).

    Operations `Ping`, `Select`, `Insert`, `Replace`, `Delete`,
    `Update`, `Upsert`, `Call`, `Call16`, `Call17`, `Eval`, `Execute`
    of a `Connector` and `Pooler` return response data instead of an
    actual responses (#237).

    `pool.Connect`, `pool.ConnetcWithOpts` and `pool.Add` use a
    new type `pool.Instance` to determinate connection options (#356).

    `pool.Connect`, `pool.ConnectWithOpts` and `pool.Add` add
    connections to the pool even it is unable to connect to it (#372).

    Required Go version from `1.13` to `1.20` (#378).

    multi subpackage is removed (#240).

    msgpack.v2 support is removed (#236).

    pool/RoundRobinStrategy is removed (#158).

    DeadlineIO is removed (#158).

    UUID_extId is removed (#158).

    IPROTO constants are removed (#158).

    Code() method from the Request interface is removed (#158).

    `Schema` field from the `Connection` struct is removed (#7).

    `OkCode` and `PushCode` constants is removed (#237).

    SSL support is removed (#301).

    `Future.Err()` method is removed (#382).

New features

    Type() method to the Request interface (#158).

    Enumeration types for RLimitAction/iterators (#158).

    IsNullable flag for Field (#302).

    Meaningful description for read/write socket errors (#129).

    Support `operation_data` in `crud.Error` (#330).

    Support `fetch_latest_metadata` option for crud requests with
    metadata (#335).

    Support `noreturn` option for data change crud requests (#335).

    Support `crud.schema` request (#336, #351).

    Support `IPROTO_WATCH_ONCE` request type for Tarantool
    version >= 3.0.0-alpha1 (#337).

    Support `yield_every` option for crud select requests (#350).

    Support `IPROTO_FEATURE_SPACE_AND_INDEX_NAMES` for Tarantool
    version >= 3.0.0-alpha1 (#338). It allows to use space and index
    names in requests instead of their IDs.

    `GetSchema` function to get the actual schema (#7).

    Support connection via an existing socket fd (#321).

    `Header` struct for the response header (#237). It can be accessed
    via `Header()` method of the `Response` interface.

   `Response` method added to the `Request` interface (#237).

   New `LogAppendPushFailed` connection log constant (#237).
   It is logged when connection fails to append a push response.

   `ErrorNo` constant that indicates that no error has occurred while
   getting the response (#237).

   `AuthDialer` type for creating a dialer with authentication (#301).

   `ProtocolDialer` type for creating a dialer with `ProtocolInfo`
   receiving and  check (#301).

   `GreetingDialer` type for creating a dialer, that fills `Greeting`
   of a connection (#301).

   New method `Pool.DoInstance` to execute a request on a target
   instance in a pool (#376).

Bugfixes

    Race condition at roundRobinStrategy.GetNextConnection() (#309).

    Incorrect decoding of an MP_DECIMAL when the `scale` value is
    negative (#314).

    Incorrect options (`after`, `batch_size` and `force_map_call`)
    setup for crud.SelectRequest (#320).

    Incorrect options (`vshard_router`, `fields`, `bucket_id`, `mode`,
    `prefer_replica`, `balance`) setup for crud.GetRequest (#335).

    Splice update operation accepts 3 arguments instead of 5 (#348).

    Unable to use a slice of custom types as a slice of tuples or
    objects for `crud.*ManyRequest/crud.*ObjectManyRequest` (#365).

Testing

    More linters on CI (#310).

    Added an ability to mock connections for tests (#237). Added new
    types `MockDoer`, `MockRequest` to `test_helpers`.

    Fixed flaky decimal/TestSelect (#300).

    Fixed tests with crud 1.4.0 (#336).

    Fixed tests with case sensitive SQL (#341).

    Renamed `StrangerResponse` to `MockResponse` (#237).

Other

    All Connection.<Request>, Connection.<Request>Typed and
    Connection.<Request>Async methods are now deprecated. Instead you
    should use requests objects + Connection.Do() (#241).

    All ConnectionPool.<Request>, ConnectionPool.<Request>Typed and
    ConnectionPool.<Request>Async methods are now deprecated. Instead
    you should use requests objects + ConnectionPool.Do() (#241).

    box.session.push() usage is deprecated: Future.AppendPush() and
    Future.GetIterator() methods, ResponseIterator and
    TimeoutResponseIterator types (#324).

1. https://github.com/tarantool/go-tlsdialer
2. https://github.com/tarantool/go-tarantool/blob/master/MIGRATION.md
oleg-jukovec added a commit that referenced this issue Feb 12, 2024
Overview

    There are a lot of changes in the new major version. The main ones:

    * The `go_tarantool_call_17` build tag is no longer needed, since
      by default the `CallRequest` is `Call17Request`.
    * The `go_tarantool_msgpack_v5` build tag is no longer needed,
      since only the `msgpack/v5` library is used.
    * The `go_tarantool_ssl_disable` build tag is no longer needed,
      since the connector is no longer depends on `OpenSSL` by default.
      You could use the external library go-tlsdialer[1] to create a
      connection with the `ssl` transport.
    * Required Go version is `1.20` now.
    * The `Connect` function became more flexible. It now allows
      to create a connection with cancellation and a custom `Dialer`
      implementation.
    * It is required to use `Request` implementation types with the
      `Connection.Do` method instead of `Connection.<Request>` methods.
    * The `connection_pool` package renamed to `pool`.

    See the migration guide[2] for more details.

Breaking changes

    connection_pool renamed to pool (#239).

    Use msgpack/v5 instead of msgpack.v2 (#236).

    Call/NewCallRequest = Call17/NewCall17Request (#235).

    Change encoding of the queue.Identify() UUID argument from binary
    blob to plain string. Needed for upgrade to Tarantool 3.0, where a
    binary blob is decoded to a varbinary object (#313).

    Use objects of the Decimal type instead of pointers (#238).

    Use objects of the Datetime type instead of pointers (#238).

    `connection.Connect` no longer return non-working connection
    objects (#136). This function now does not attempt to reconnect
    and tries to establish a connection only once. Function might be
    canceled via context. Context accepted as first argument.
    `pool.Connect` and `pool.Add` now accept context as the first
    argument, which user may cancel in process. If `pool.Connect` is
    canceled in progress, an error will be returned. All created
    connections will be closed.

    `iproto.Feature` type now used instead of `ProtocolFeature` (#337).

    `iproto.IPROTO_FEATURE_` constants now used instead of local
    `Feature` constants for `protocol` (#337).

    Change `crud` operations `Timeout` option type to `crud.OptFloat64`
    instead of `crud.OptUint` (#342).

    Change all `Upsert` and `Update` requests to accept
    `*tarantool.Operations`  as `ops` parameters instead of
    `interface{}` (#348).

    Change `OverrideSchema(*Schema)` to `SetSchema(Schema)` (#7).

    Change values, stored by pointers in the `Schema`, `Space`,
    `Index` structs,  to be stored by their values (#7).

    Make `Dialer` mandatory for creation a single connection (#321).

    Remove `Connection.RemoteAddr()`, `Connection.LocalAddr()`.
    Add `Addr()` function instead (#321).

    Remove `Connection.ClientProtocolInfo`,
    `Connection.ServerProtocolInfo`. Add `ProtocolInfo()` function
    instead, which returns the server protocol info (#321).

    `NewWatcher` checks the actual features of the server, rather
    than relying on the features provided by the user during connection
    creation (#321).

    `pool.NewWatcher` does not create watchers for connections that do
    not support it (#321).

    Rename `pool.GetPoolInfo` to `pool.GetInfo`. Change return type to
    `map[string]ConnectionInfo` (#321).

    `Response` is now an interface (#237).

    All responses are now implementations of the `Response`
    interface (#237). `SelectResponse`, `ExecuteResponse`,
    `PrepareResponse`, `PushResponse` are part of a public API.
    `Pos()`, `MetaData()`, `SQLInfo()` methods created for them to
    get specific info. Special types of responses are used with
    special requests.

    `IsPush()` method is added to the response iterator (#237). It
    returns the information if the current response is a
    `PushResponse`. `PushCode` constant is removed.

    Method `Get` for `Future` now returns response data (#237). To get
    the actual response new `GetResponse` method has been added.
    Methods `AppendPush` and `SetResponse` accept response `Header`
    and data as their arguments.

    `Future` constructors now accept `Request` as their argument
    (#237).

    Operations `Ping`, `Select`, `Insert`, `Replace`, `Delete`,
    `Update`, `Upsert`, `Call`, `Call16`, `Call17`, `Eval`, `Execute`
    of a `Connector` and `Pooler` return response data instead of an
    actual responses (#237).

    `pool.Connect`, `pool.ConnetcWithOpts` and `pool.Add` use a
    new type `pool.Instance` to determinate connection options (#356).

    `pool.Connect`, `pool.ConnectWithOpts` and `pool.Add` add
    connections to the pool even it is unable to connect to it (#372).

    Required Go version from `1.13` to `1.20` (#378).

    multi subpackage is removed (#240).

    msgpack.v2 support is removed (#236).

    pool/RoundRobinStrategy is removed (#158).

    DeadlineIO is removed (#158).

    UUID_extId is removed (#158).

    IPROTO constants are removed (#158).

    Code() method from the Request interface is removed (#158).

    `Schema` field from the `Connection` struct is removed (#7).

    `OkCode` and `PushCode` constants is removed (#237).

    SSL support is removed (#301).

    `Future.Err()` method is removed (#382).

New features

    Type() method to the Request interface (#158).

    Enumeration types for RLimitAction/iterators (#158).

    IsNullable flag for Field (#302).

    Meaningful description for read/write socket errors (#129).

    Support `operation_data` in `crud.Error` (#330).

    Support `fetch_latest_metadata` option for crud requests with
    metadata (#335).

    Support `noreturn` option for data change crud requests (#335).

    Support `crud.schema` request (#336, #351).

    Support `IPROTO_WATCH_ONCE` request type for Tarantool
    version >= 3.0.0-alpha1 (#337).

    Support `yield_every` option for crud select requests (#350).

    Support `IPROTO_FEATURE_SPACE_AND_INDEX_NAMES` for Tarantool
    version >= 3.0.0-alpha1 (#338). It allows to use space and index
    names in requests instead of their IDs.

    `GetSchema` function to get the actual schema (#7).

    Support connection via an existing socket fd (#321).

    `Header` struct for the response header (#237). It can be accessed
    via `Header()` method of the `Response` interface.

   `Response` method added to the `Request` interface (#237).

   New `LogAppendPushFailed` connection log constant (#237).
   It is logged when connection fails to append a push response.

   `ErrorNo` constant that indicates that no error has occurred while
   getting the response (#237).

   `AuthDialer` type for creating a dialer with authentication (#301).

   `ProtocolDialer` type for creating a dialer with `ProtocolInfo`
   receiving and  check (#301).

   `GreetingDialer` type for creating a dialer, that fills `Greeting`
   of a connection (#301).

   New method `Pool.DoInstance` to execute a request on a target
   instance in a pool (#376).

Bugfixes

    Race condition at roundRobinStrategy.GetNextConnection() (#309).

    Incorrect decoding of an MP_DECIMAL when the `scale` value is
    negative (#314).

    Incorrect options (`after`, `batch_size` and `force_map_call`)
    setup for crud.SelectRequest (#320).

    Incorrect options (`vshard_router`, `fields`, `bucket_id`, `mode`,
    `prefer_replica`, `balance`) setup for crud.GetRequest (#335).

    Splice update operation accepts 3 arguments instead of 5 (#348).

    Unable to use a slice of custom types as a slice of tuples or
    objects for `crud.*ManyRequest/crud.*ObjectManyRequest` (#365).

Testing

    More linters on CI (#310).

    Added an ability to mock connections for tests (#237). Added new
    types `MockDoer`, `MockRequest` to `test_helpers`.

    Fixed flaky decimal/TestSelect (#300).

    Fixed tests with crud 1.4.0 (#336).

    Fixed tests with case sensitive SQL (#341).

    Renamed `StrangerResponse` to `MockResponse` (#237).

Other

    All Connection.<Request>, Connection.<Request>Typed and
    Connection.<Request>Async methods are now deprecated. Instead you
    should use requests objects + Connection.Do() (#241).

    All ConnectionPool.<Request>, ConnectionPool.<Request>Typed and
    ConnectionPool.<Request>Async methods are now deprecated. Instead
    you should use requests objects + ConnectionPool.Do() (#241).

    box.session.push() usage is deprecated: Future.AppendPush() and
    Future.GetIterator() methods, ResponseIterator and
    TimeoutResponseIterator types (#324).

1. https://github.com/tarantool/go-tlsdialer
2. https://github.com/tarantool/go-tarantool/blob/master/MIGRATION.md
oleg-jukovec added a commit that referenced this issue Feb 12, 2024
Overview

    There are a lot of changes in the new major version. The main ones:

    * The `go_tarantool_call_17` build tag is no longer needed, since
      by default the `CallRequest` is `Call17Request`.
    * The `go_tarantool_msgpack_v5` build tag is no longer needed,
      since only the `msgpack/v5` library is used.
    * The `go_tarantool_ssl_disable` build tag is no longer needed,
      since the connector is no longer depends on `OpenSSL` by default.
      You could use the external library go-tlsdialer[1] to create a
      connection with the `ssl` transport.
    * Required Go version is `1.20` now.
    * The `Connect` function became more flexible. It now allows
      to create a connection with cancellation and a custom `Dialer`
      implementation.
    * It is required to use `Request` implementation types with the
      `Connection.Do` method instead of `Connection.<Request>` methods.
    * The `connection_pool` package renamed to `pool`.

    See the migration guide[2] for more details.

Breaking changes

    connection_pool renamed to pool (#239).

    Use msgpack/v5 instead of msgpack.v2 (#236).

    Call/NewCallRequest = Call17/NewCall17Request (#235).

    Change encoding of the queue.Identify() UUID argument from binary
    blob to plain string. Needed for upgrade to Tarantool 3.0, where a
    binary blob is decoded to a varbinary object (#313).

    Use objects of the Decimal type instead of pointers (#238).

    Use objects of the Datetime type instead of pointers (#238).

    `connection.Connect` no longer return non-working connection
    objects (#136). This function now does not attempt to reconnect
    and tries to establish a connection only once. Function might be
    canceled via context. Context accepted as first argument.
    `pool.Connect` and `pool.Add` now accept context as the first
    argument, which user may cancel in process. If `pool.Connect` is
    canceled in progress, an error will be returned. All created
    connections will be closed.

    `iproto.Feature` type now used instead of `ProtocolFeature` (#337).

    `iproto.IPROTO_FEATURE_` constants now used instead of local
    `Feature` constants for `protocol` (#337).

    Change `crud` operations `Timeout` option type to `crud.OptFloat64`
    instead of `crud.OptUint` (#342).

    Change all `Upsert` and `Update` requests to accept
    `*tarantool.Operations`  as `ops` parameters instead of
    `interface{}` (#348).

    Change `OverrideSchema(*Schema)` to `SetSchema(Schema)` (#7).

    Change values, stored by pointers in the `Schema`, `Space`,
    `Index` structs,  to be stored by their values (#7).

    Make `Dialer` mandatory for creation a single connection (#321).

    Remove `Connection.RemoteAddr()`, `Connection.LocalAddr()`.
    Add `Addr()` function instead (#321).

    Remove `Connection.ClientProtocolInfo`,
    `Connection.ServerProtocolInfo`. Add `ProtocolInfo()` function
    instead, which returns the server protocol info (#321).

    `NewWatcher` checks the actual features of the server, rather
    than relying on the features provided by the user during connection
    creation (#321).

    `pool.NewWatcher` does not create watchers for connections that do
    not support it (#321).

    Rename `pool.GetPoolInfo` to `pool.GetInfo`. Change return type to
    `map[string]ConnectionInfo` (#321).

    `Response` is now an interface (#237).

    All responses are now implementations of the `Response`
    interface (#237). `SelectResponse`, `ExecuteResponse`,
    `PrepareResponse`, `PushResponse` are part of a public API.
    `Pos()`, `MetaData()`, `SQLInfo()` methods created for them to
    get specific info. Special types of responses are used with
    special requests.

    `IsPush()` method is added to the response iterator (#237). It
    returns the information if the current response is a
    `PushResponse`. `PushCode` constant is removed.

    Method `Get` for `Future` now returns response data (#237). To get
    the actual response new `GetResponse` method has been added.
    Methods `AppendPush` and `SetResponse` accept response `Header`
    and data as their arguments.

    `Future` constructors now accept `Request` as their argument
    (#237).

    Operations `Ping`, `Select`, `Insert`, `Replace`, `Delete`,
    `Update`, `Upsert`, `Call`, `Call16`, `Call17`, `Eval`, `Execute`
    of a `Connector` and `Pooler` return response data instead of an
    actual responses (#237).

    `pool.Connect`, `pool.ConnetcWithOpts` and `pool.Add` use a
    new type `pool.Instance` to determinate connection options (#356).

    `pool.Connect`, `pool.ConnectWithOpts` and `pool.Add` add
    connections to the pool even it is unable to connect to it (#372).

    Required Go version from `1.13` to `1.20` (#378).

    multi subpackage is removed (#240).

    msgpack.v2 support is removed (#236).

    pool/RoundRobinStrategy is removed (#158).

    DeadlineIO is removed (#158).

    UUID_extId is removed (#158).

    IPROTO constants are removed (#158).

    Code() method from the Request interface is removed (#158).

    `Schema` field from the `Connection` struct is removed (#7).

    `OkCode` and `PushCode` constants is removed (#237).

    SSL support is removed (#301).

    `Future.Err()` method is removed (#382).

New features

    Type() method to the Request interface (#158).

    Enumeration types for RLimitAction/iterators (#158).

    IsNullable flag for Field (#302).

    Meaningful description for read/write socket errors (#129).

    Support `operation_data` in `crud.Error` (#330).

    Support `fetch_latest_metadata` option for crud requests with
    metadata (#335).

    Support `noreturn` option for data change crud requests (#335).

    Support `crud.schema` request (#336, #351).

    Support `IPROTO_WATCH_ONCE` request type for Tarantool
    version >= 3.0.0-alpha1 (#337).

    Support `yield_every` option for crud select requests (#350).

    Support `IPROTO_FEATURE_SPACE_AND_INDEX_NAMES` for Tarantool
    version >= 3.0.0-alpha1 (#338). It allows to use space and index
    names in requests instead of their IDs.

    `GetSchema` function to get the actual schema (#7).

    Support connection via an existing socket fd (#321).

    `Header` struct for the response header (#237). It can be accessed
    via `Header()` method of the `Response` interface.

   `Response` method added to the `Request` interface (#237).

   New `LogAppendPushFailed` connection log constant (#237).
   It is logged when connection fails to append a push response.

   `ErrorNo` constant that indicates that no error has occurred while
   getting the response (#237).

   `AuthDialer` type for creating a dialer with authentication (#301).

   `ProtocolDialer` type for creating a dialer with `ProtocolInfo`
   receiving and  check (#301).

   `GreetingDialer` type for creating a dialer, that fills `Greeting`
   of a connection (#301).

   New method `Pool.DoInstance` to execute a request on a target
   instance in a pool (#376).

Bugfixes

    Race condition at roundRobinStrategy.GetNextConnection() (#309).

    Incorrect decoding of an MP_DECIMAL when the `scale` value is
    negative (#314).

    Incorrect options (`after`, `batch_size` and `force_map_call`)
    setup for crud.SelectRequest (#320).

    Incorrect options (`vshard_router`, `fields`, `bucket_id`, `mode`,
    `prefer_replica`, `balance`) setup for crud.GetRequest (#335).

    Splice update operation accepts 3 arguments instead of 5 (#348).

    Unable to use a slice of custom types as a slice of tuples or
    objects for `crud.*ManyRequest/crud.*ObjectManyRequest` (#365).

Testing

    More linters on CI (#310).

    Added an ability to mock connections for tests (#237). Added new
    types `MockDoer`, `MockRequest` to `test_helpers`.

    Fixed flaky decimal/TestSelect (#300).

    Fixed tests with crud 1.4.0 (#336).

    Fixed tests with case sensitive SQL (#341).

    Renamed `StrangerResponse` to `MockResponse` (#237).

Other

    All Connection.<Request>, Connection.<Request>Typed and
    Connection.<Request>Async methods are now deprecated. Instead you
    should use requests objects + Connection.Do() (#241).

    All ConnectionPool.<Request>, ConnectionPool.<Request>Typed and
    ConnectionPool.<Request>Async methods are now deprecated. Instead
    you should use requests objects + ConnectionPool.Do() (#241).

    box.session.push() usage is deprecated: Future.AppendPush() and
    Future.GetIterator() methods, ResponseIterator and
    TimeoutResponseIterator types (#324).

1. https://github.com/tarantool/go-tlsdialer
2. https://github.com/tarantool/go-tarantool/blob/master/MIGRATION.md
oleg-jukovec added a commit that referenced this issue Feb 12, 2024
Overview

    There are a lot of changes in the new major version. The main ones:

    * The `go_tarantool_call_17` build tag is no longer needed, since
      by default the `CallRequest` is `Call17Request`.
    * The `go_tarantool_msgpack_v5` build tag is no longer needed,
      since only the `msgpack/v5` library is used.
    * The `go_tarantool_ssl_disable` build tag is no longer needed,
      since the connector is no longer depends on `OpenSSL` by default.
      You could use the external library go-tlsdialer[1] to create a
      connection with the `ssl` transport.
    * Required Go version is `1.20` now.
    * The `Connect` function became more flexible. It now allows
      to create a connection with cancellation and a custom `Dialer`
      implementation.
    * It is required to use `Request` implementation types with the
      `Connection.Do` method instead of `Connection.<Request>` methods.
    * The `connection_pool` package renamed to `pool`.

    See the migration guide[2] for more details.

Breaking changes

    connection_pool renamed to pool (#239).

    Use msgpack/v5 instead of msgpack.v2 (#236).

    Call/NewCallRequest = Call17/NewCall17Request (#235).

    Change encoding of the queue.Identify() UUID argument from binary
    blob to plain string. Needed for upgrade to Tarantool 3.0, where a
    binary blob is decoded to a varbinary object (#313).

    Use objects of the Decimal type instead of pointers (#238).

    Use objects of the Datetime type instead of pointers (#238).

    `connection.Connect` no longer return non-working connection
    objects (#136). This function now does not attempt to reconnect
    and tries to establish a connection only once. Function might be
    canceled via context. Context accepted as first argument.
    `pool.Connect` and `pool.Add` now accept context as the first
    argument, which user may cancel in process. If `pool.Connect` is
    canceled in progress, an error will be returned. All created
    connections will be closed.

    `iproto.Feature` type now used instead of `ProtocolFeature` (#337).

    `iproto.IPROTO_FEATURE_` constants now used instead of local
    `Feature` constants for `protocol` (#337).

    Change `crud` operations `Timeout` option type to `crud.OptFloat64`
    instead of `crud.OptUint` (#342).

    Change all `Upsert` and `Update` requests to accept
    `*tarantool.Operations`  as `ops` parameters instead of
    `interface{}` (#348).

    Change `OverrideSchema(*Schema)` to `SetSchema(Schema)` (#7).

    Change values, stored by pointers in the `Schema`, `Space`,
    `Index` structs,  to be stored by their values (#7).

    Make `Dialer` mandatory for creation a single connection (#321).

    Remove `Connection.RemoteAddr()`, `Connection.LocalAddr()`.
    Add `Addr()` function instead (#321).

    Remove `Connection.ClientProtocolInfo`,
    `Connection.ServerProtocolInfo`. Add `ProtocolInfo()` function
    instead, which returns the server protocol info (#321).

    `NewWatcher` checks the actual features of the server, rather
    than relying on the features provided by the user during connection
    creation (#321).

    `pool.NewWatcher` does not create watchers for connections that do
    not support it (#321).

    Rename `pool.GetPoolInfo` to `pool.GetInfo`. Change return type to
    `map[string]ConnectionInfo` (#321).

    `Response` is now an interface (#237).

    All responses are now implementations of the `Response`
    interface (#237). `SelectResponse`, `ExecuteResponse`,
    `PrepareResponse`, `PushResponse` are part of a public API.
    `Pos()`, `MetaData()`, `SQLInfo()` methods created for them to
    get specific info. Special types of responses are used with
    special requests.

    `IsPush()` method is added to the response iterator (#237). It
    returns the information if the current response is a
    `PushResponse`. `PushCode` constant is removed.

    Method `Get` for `Future` now returns response data (#237). To get
    the actual response new `GetResponse` method has been added.
    Methods `AppendPush` and `SetResponse` accept response `Header`
    and data as their arguments.

    `Future` constructors now accept `Request` as their argument
    (#237).

    Operations `Ping`, `Select`, `Insert`, `Replace`, `Delete`,
    `Update`, `Upsert`, `Call`, `Call16`, `Call17`, `Eval`, `Execute`
    of a `Connector` and `Pooler` return response data instead of an
    actual responses (#237).

    `pool.Connect`, `pool.ConnetcWithOpts` and `pool.Add` use a
    new type `pool.Instance` to determinate connection options (#356).

    `pool.Connect`, `pool.ConnectWithOpts` and `pool.Add` add
    connections to the pool even it is unable to connect to it (#372).

    Required Go version from `1.13` to `1.20` (#378).

    multi subpackage is removed (#240).

    msgpack.v2 support is removed (#236).

    pool/RoundRobinStrategy is removed (#158).

    DeadlineIO is removed (#158).

    UUID_extId is removed (#158).

    IPROTO constants are removed (#158).

    Code() method from the Request interface is removed (#158).

    `Schema` field from the `Connection` struct is removed (#7).

    `OkCode` and `PushCode` constants is removed (#237).

    SSL support is removed (#301).

    `Future.Err()` method is removed (#382).

New features

    Type() method to the Request interface (#158).

    Enumeration types for RLimitAction/iterators (#158).

    IsNullable flag for Field (#302).

    Meaningful description for read/write socket errors (#129).

    Support `operation_data` in `crud.Error` (#330).

    Support `fetch_latest_metadata` option for crud requests with
    metadata (#335).

    Support `noreturn` option for data change crud requests (#335).

    Support `crud.schema` request (#336, #351).

    Support `IPROTO_WATCH_ONCE` request type for Tarantool
    version >= 3.0.0-alpha1 (#337).

    Support `yield_every` option for crud select requests (#350).

    Support `IPROTO_FEATURE_SPACE_AND_INDEX_NAMES` for Tarantool
    version >= 3.0.0-alpha1 (#338). It allows to use space and index
    names in requests instead of their IDs.

    `GetSchema` function to get the actual schema (#7).

    Support connection via an existing socket fd (#321).

    `Header` struct for the response header (#237). It can be accessed
    via `Header()` method of the `Response` interface.

   `Response` method added to the `Request` interface (#237).

   New `LogAppendPushFailed` connection log constant (#237).
   It is logged when connection fails to append a push response.

   `ErrorNo` constant that indicates that no error has occurred while
   getting the response (#237).

   `AuthDialer` type for creating a dialer with authentication (#301).

   `ProtocolDialer` type for creating a dialer with `ProtocolInfo`
   receiving and  check (#301).

   `GreetingDialer` type for creating a dialer, that fills `Greeting`
   of a connection (#301).

   New method `Pool.DoInstance` to execute a request on a target
   instance in a pool (#376).

Bugfixes

    Race condition at roundRobinStrategy.GetNextConnection() (#309).

    Incorrect decoding of an MP_DECIMAL when the `scale` value is
    negative (#314).

    Incorrect options (`after`, `batch_size` and `force_map_call`)
    setup for crud.SelectRequest (#320).

    Incorrect options (`vshard_router`, `fields`, `bucket_id`, `mode`,
    `prefer_replica`, `balance`) setup for crud.GetRequest (#335).

    Splice update operation accepts 3 arguments instead of 5 (#348).

    Unable to use a slice of custom types as a slice of tuples or
    objects for `crud.*ManyRequest/crud.*ObjectManyRequest` (#365).

Testing

    More linters on CI (#310).

    Added an ability to mock connections for tests (#237). Added new
    types `MockDoer`, `MockRequest` to `test_helpers`.

    Fixed flaky decimal/TestSelect (#300).

    Fixed tests with crud 1.4.0 (#336).

    Fixed tests with case sensitive SQL (#341).

    Renamed `StrangerResponse` to `MockResponse` (#237).

Other

    All Connection.<Request>, Connection.<Request>Typed and
    Connection.<Request>Async methods are now deprecated. Instead you
    should use requests objects + Connection.Do() (#241).

    All ConnectionPool.<Request>, ConnectionPool.<Request>Typed and
    ConnectionPool.<Request>Async methods are now deprecated. Instead
    you should use requests objects + ConnectionPool.Do() (#241).

    box.session.push() usage is deprecated: Future.AppendPush() and
    Future.GetIterator() methods, ResponseIterator and
    TimeoutResponseIterator types (#324).

1. https://github.com/tarantool/go-tlsdialer
2. https://github.com/tarantool/go-tarantool/blob/master/MIGRATION.md
oleg-jukovec added a commit that referenced this issue Feb 12, 2024
Overview

    There are a lot of changes in the new major version. The main ones:

    * The `go_tarantool_call_17` build tag is no longer needed, since
      by default the `CallRequest` is `Call17Request`.
    * The `go_tarantool_msgpack_v5` build tag is no longer needed,
      since only the `msgpack/v5` library is used.
    * The `go_tarantool_ssl_disable` build tag is no longer needed,
      since the connector is no longer depends on `OpenSSL` by default.
      You could use the external library go-tlsdialer[1] to create a
      connection with the `ssl` transport.
    * Required Go version is `1.20` now.
    * The `Connect` function became more flexible. It now allows
      to create a connection with cancellation and a custom `Dialer`
      implementation.
    * It is required to use `Request` implementation types with the
      `Connection.Do` method instead of `Connection.<Request>` methods.
    * The `connection_pool` package renamed to `pool`.

    See the migration guide[2] for more details.

Breaking changes

    connection_pool renamed to pool (#239).

    Use msgpack/v5 instead of msgpack.v2 (#236).

    Call/NewCallRequest = Call17/NewCall17Request (#235).

    Change encoding of the queue.Identify() UUID argument from binary
    blob to plain string. Needed for upgrade to Tarantool 3.0, where a
    binary blob is decoded to a varbinary object (#313).

    Use objects of the Decimal type instead of pointers (#238).

    Use objects of the Datetime type instead of pointers (#238).

    `connection.Connect` no longer return non-working connection
    objects (#136). This function now does not attempt to reconnect
    and tries to establish a connection only once. Function might be
    canceled via context. Context accepted as first argument.
    `pool.Connect` and `pool.Add` now accept context as the first
    argument, which user may cancel in process. If `pool.Connect` is
    canceled in progress, an error will be returned. All created
    connections will be closed.

    `iproto.Feature` type now used instead of `ProtocolFeature` (#337).

    `iproto.IPROTO_FEATURE_` constants now used instead of local
    `Feature` constants for `protocol` (#337).

    Change `crud` operations `Timeout` option type to `crud.OptFloat64`
    instead of `crud.OptUint` (#342).

    Change all `Upsert` and `Update` requests to accept
    `*tarantool.Operations`  as `ops` parameters instead of
    `interface{}` (#348).

    Change `OverrideSchema(*Schema)` to `SetSchema(Schema)` (#7).

    Change values, stored by pointers in the `Schema`, `Space`,
    `Index` structs,  to be stored by their values (#7).

    Make `Dialer` mandatory for creation a single connection (#321).

    Remove `Connection.RemoteAddr()`, `Connection.LocalAddr()`.
    Add `Addr()` function instead (#321).

    Remove `Connection.ClientProtocolInfo`,
    `Connection.ServerProtocolInfo`. Add `ProtocolInfo()` function
    instead, which returns the server protocol info (#321).

    `NewWatcher` checks the actual features of the server, rather
    than relying on the features provided by the user during connection
    creation (#321).

    `pool.NewWatcher` does not create watchers for connections that do
    not support it (#321).

    Rename `pool.GetPoolInfo` to `pool.GetInfo`. Change return type to
    `map[string]ConnectionInfo` (#321).

    `Response` is now an interface (#237).

    All responses are now implementations of the `Response`
    interface (#237). `SelectResponse`, `ExecuteResponse`,
    `PrepareResponse`, `PushResponse` are part of a public API.
    `Pos()`, `MetaData()`, `SQLInfo()` methods created for them to
    get specific info. Special types of responses are used with
    special requests.

    `IsPush()` method is added to the response iterator (#237). It
    returns the information if the current response is a
    `PushResponse`. `PushCode` constant is removed.

    Method `Get` for `Future` now returns response data (#237). To get
    the actual response new `GetResponse` method has been added.
    Methods `AppendPush` and `SetResponse` accept response `Header`
    and data as their arguments.

    `Future` constructors now accept `Request` as their argument
    (#237).

    Operations `Ping`, `Select`, `Insert`, `Replace`, `Delete`,
    `Update`, `Upsert`, `Call`, `Call16`, `Call17`, `Eval`, `Execute`
    of a `Connector` and `Pooler` return response data instead of an
    actual responses (#237).

    `pool.Connect`, `pool.ConnetcWithOpts` and `pool.Add` use a
    new type `pool.Instance` to determinate connection options (#356).

    `pool.Connect`, `pool.ConnectWithOpts` and `pool.Add` add
    connections to the pool even it is unable to connect to it (#372).

    Required Go version from `1.13` to `1.20` (#378).

    multi subpackage is removed (#240).

    msgpack.v2 support is removed (#236).

    pool/RoundRobinStrategy is removed (#158).

    DeadlineIO is removed (#158).

    UUID_extId is removed (#158).

    IPROTO constants are removed (#158).

    Code() method from the Request interface is removed (#158).

    `Schema` field from the `Connection` struct is removed (#7).

    `OkCode` and `PushCode` constants is removed (#237).

    SSL support is removed (#301).

    `Future.Err()` method is removed (#382).

New features

    Type() method to the Request interface (#158).

    Enumeration types for RLimitAction/iterators (#158).

    IsNullable flag for Field (#302).

    Meaningful description for read/write socket errors (#129).

    Support `operation_data` in `crud.Error` (#330).

    Support `fetch_latest_metadata` option for crud requests with
    metadata (#335).

    Support `noreturn` option for data change crud requests (#335).

    Support `crud.schema` request (#336, #351).

    Support `IPROTO_WATCH_ONCE` request type for Tarantool
    version >= 3.0.0-alpha1 (#337).

    Support `yield_every` option for crud select requests (#350).

    Support `IPROTO_FEATURE_SPACE_AND_INDEX_NAMES` for Tarantool
    version >= 3.0.0-alpha1 (#338). It allows to use space and index
    names in requests instead of their IDs.

    `GetSchema` function to get the actual schema (#7).

    Support connection via an existing socket fd (#321).

    `Header` struct for the response header (#237). It can be accessed
    via `Header()` method of the `Response` interface.

   `Response` method added to the `Request` interface (#237).

   New `LogAppendPushFailed` connection log constant (#237).
   It is logged when connection fails to append a push response.

   `ErrorNo` constant that indicates that no error has occurred while
   getting the response (#237).

   `AuthDialer` type for creating a dialer with authentication (#301).

   `ProtocolDialer` type for creating a dialer with `ProtocolInfo`
   receiving and  check (#301).

   `GreetingDialer` type for creating a dialer, that fills `Greeting`
   of a connection (#301).

   New method `Pool.DoInstance` to execute a request on a target
   instance in a pool (#376).

Bugfixes

    Race condition at roundRobinStrategy.GetNextConnection() (#309).

    Incorrect decoding of an MP_DECIMAL when the `scale` value is
    negative (#314).

    Incorrect options (`after`, `batch_size` and `force_map_call`)
    setup for crud.SelectRequest (#320).

    Incorrect options (`vshard_router`, `fields`, `bucket_id`, `mode`,
    `prefer_replica`, `balance`) setup for crud.GetRequest (#335).

    Splice update operation accepts 3 arguments instead of 5 (#348).

    Unable to use a slice of custom types as a slice of tuples or
    objects for `crud.*ManyRequest/crud.*ObjectManyRequest` (#365).

Testing

    More linters on CI (#310).

    Added an ability to mock connections for tests (#237). Added new
    types `MockDoer`, `MockRequest` to `test_helpers`.

    Fixed flaky decimal/TestSelect (#300).

    Fixed tests with crud 1.4.0 (#336).

    Fixed tests with case sensitive SQL (#341).

    Renamed `StrangerResponse` to `MockResponse` (#237).

Other

    All Connection.<Request>, Connection.<Request>Typed and
    Connection.<Request>Async methods are now deprecated. Instead you
    should use requests objects + Connection.Do() (#241).

    All ConnectionPool.<Request>, ConnectionPool.<Request>Typed and
    ConnectionPool.<Request>Async methods are now deprecated. Instead
    you should use requests objects + ConnectionPool.Do() (#241).

    box.session.push() usage is deprecated: Future.AppendPush() and
    Future.GetIterator() methods, ResponseIterator and
    TimeoutResponseIterator types (#324).

1. https://github.com/tarantool/go-tlsdialer
2. https://github.com/tarantool/go-tarantool/blob/master/MIGRATION.md
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