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Vtgate refactors. #3539

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merged 7 commits into from
Jan 11, 2018
Merged

Vtgate refactors. #3539

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faf6910
A few small vtgate fixes / cleanups.
alainjobart Jan 9, 2018
b13e0cc
Moving topo.SrvTopoServer into srvtopo.Server.
alainjobart Jan 9, 2018
c413521
Moving ResilientSrvTopoServer to srvtopo.
alainjobart Jan 9, 2018
6baafa2
Moving some VSchema watch logic to srvtopo.
alainjobart Jan 10, 2018
17a6595
Moving vtgate's resolve methods to srvtopo.
alainjobart Jan 10, 2018
140f9ed
Two fixes related to VSchema.
alainjobart Jan 10, 2018
448c4f4
Fixing integration tests.
alainjobart Jan 10, 2018
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8 changes: 4 additions & 4 deletions go/cmd/l2vtgate/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -28,9 +28,9 @@ import (
"github.com/youtube/vitess/go/exit"
"github.com/youtube/vitess/go/vt/discovery"
"github.com/youtube/vitess/go/vt/servenv"
"github.com/youtube/vitess/go/vt/srvtopo"
"github.com/youtube/vitess/go/vt/topo"
"github.com/youtube/vitess/go/vt/topo/topoproto"
"github.com/youtube/vitess/go/vt/vtgate"
"github.com/youtube/vitess/go/vt/vtgate/l2vtgate"

topodatapb "github.com/youtube/vitess/go/vt/proto/topodata"
Expand All @@ -44,7 +44,7 @@ var (
tabletTypesToWait = flag.String("tablet_types_to_wait", "", "wait till connected for specified tablet types during Gateway initialization")
)

var resilientSrvTopoServer *vtgate.ResilientSrvTopoServer
var resilientServer *srvtopo.ResilientServer
var healthCheck discovery.HealthCheck

func init() {
Expand All @@ -66,7 +66,7 @@ func main() {
ts := topo.Open()
defer ts.Close()

resilientSrvTopoServer = vtgate.NewResilientSrvTopoServer(ts, "ResilientSrvTopoServer")
resilientServer = srvtopo.NewResilientServer(ts, "ResilientSrvTopoServer")

healthCheck = discovery.NewHealthCheck(*healthCheckRetryDelay, *healthCheckTimeout)
healthCheck.RegisterStats()
Expand All @@ -82,7 +82,7 @@ func main() {
tabletTypes = append(tabletTypes, tt)
}
}
l2vtg := l2vtgate.Init(healthCheck, ts, resilientSrvTopoServer, "VttabletCall", *cell, *retryCount, tabletTypes)
l2vtg := l2vtgate.Init(healthCheck, ts, resilientServer, "VttabletCall", *cell, *retryCount, tabletTypes)

servenv.OnRun(func() {
addStatusParts(l2vtg)
Expand Down
6 changes: 3 additions & 3 deletions go/cmd/l2vtgate/status.go
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Original file line number Diff line number Diff line change
Expand Up @@ -19,8 +19,8 @@ package main
import (
"github.com/youtube/vitess/go/vt/discovery"
"github.com/youtube/vitess/go/vt/servenv"
"github.com/youtube/vitess/go/vt/srvtopo"
_ "github.com/youtube/vitess/go/vt/status"
"github.com/youtube/vitess/go/vt/vtgate"
"github.com/youtube/vitess/go/vt/vtgate/gateway"
"github.com/youtube/vitess/go/vt/vtgate/l2vtgate"
)
Expand All @@ -29,8 +29,8 @@ import (
var onStatusRegistered func()

func addStatusParts(l2vtgate *l2vtgate.L2VTGate) {
servenv.AddStatusPart("Topology Cache", vtgate.TopoTemplate, func() interface{} {
return resilientSrvTopoServer.CacheStatus()
servenv.AddStatusPart("Topology Cache", srvtopo.TopoTemplate, func() interface{} {
return resilientServer.CacheStatus()
})
servenv.AddStatusPart("Gateway Status", gateway.StatusTemplate, func() interface{} {
return l2vtgate.GetGatewayCacheStatus()
Expand Down
5 changes: 3 additions & 2 deletions go/cmd/vtcombo/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,7 @@ import (
"github.com/youtube/vitess/go/vt/discovery"
"github.com/youtube/vitess/go/vt/mysqlctl"
"github.com/youtube/vitess/go/vt/servenv"
"github.com/youtube/vitess/go/vt/srvtopo"
"github.com/youtube/vitess/go/vt/topo"
"github.com/youtube/vitess/go/vt/topo/memorytopo"
"github.com/youtube/vitess/go/vt/vtctld"
Expand Down Expand Up @@ -126,7 +127,7 @@ func main() {
}

// vtgate configuration and init
resilientSrvTopoServer := vtgate.NewResilientSrvTopoServer(ts, "ResilientSrvTopoServer")
resilientServer := srvtopo.NewResilientServer(ts, "ResilientSrvTopoServer")
healthCheck := discovery.NewHealthCheck(1*time.Millisecond /*retryDelay*/, 1*time.Hour /*healthCheckTimeout*/)
tabletTypesToWait := []topodatapb.TabletType{
topodatapb.TabletType_MASTER,
Expand All @@ -137,7 +138,7 @@ func main() {
vtgate.QueryLogHandler = "/debug/vtgate/querylog"
vtgate.QueryLogzHandler = "/debug/vtgate/querylogz"
vtgate.QueryzHandler = "/debug/vtgate/queryz"
vtgate.Init(context.Background(), healthCheck, ts, resilientSrvTopoServer, tpb.Cells[0], 2 /*retryCount*/, tabletTypesToWait)
vtgate.Init(context.Background(), healthCheck, ts, resilientServer, tpb.Cells[0], 2 /*retryCount*/, tabletTypesToWait)

// vtctld configuration and init
vtctld.InitVtctld(ts)
Expand Down
5 changes: 3 additions & 2 deletions go/cmd/vtgate/status.go
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@ package main
import (
"github.com/youtube/vitess/go/vt/discovery"
"github.com/youtube/vitess/go/vt/servenv"
"github.com/youtube/vitess/go/vt/srvtopo"
_ "github.com/youtube/vitess/go/vt/status"
"github.com/youtube/vitess/go/vt/vtgate"
"github.com/youtube/vitess/go/vt/vtgate/gateway"
Expand All @@ -34,8 +35,8 @@ func addStatusParts(vtg *vtgate.VTGate) {
servenv.AddStatusPart("VSchema", vtgate.VSchemaTemplate, func() interface{} {
return vtg.VSchemaStats()
})
servenv.AddStatusPart("Topology Cache", vtgate.TopoTemplate, func() interface{} {
return resilientSrvTopoServer.CacheStatus()
servenv.AddStatusPart("Topology Cache", srvtopo.TopoTemplate, func() interface{} {
return resilientServer.CacheStatus()
})
servenv.AddStatusPart("Gateway Status", gateway.StatusTemplate, func() interface{} {
return vtg.GetGatewayCacheStatus()
Expand Down
7 changes: 4 additions & 3 deletions go/cmd/vtgate/vtgate.go
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,7 @@ import (
"github.com/youtube/vitess/go/exit"
"github.com/youtube/vitess/go/vt/discovery"
"github.com/youtube/vitess/go/vt/servenv"
"github.com/youtube/vitess/go/vt/srvtopo"
"github.com/youtube/vitess/go/vt/topo"
"github.com/youtube/vitess/go/vt/topo/topoproto"
"github.com/youtube/vitess/go/vt/vtgate"
Expand All @@ -45,7 +46,7 @@ var (
tabletTypesToWait = flag.String("tablet_types_to_wait", "", "wait till connected for specified tablet types during Gateway initialization")
)

var resilientSrvTopoServer *vtgate.ResilientSrvTopoServer
var resilientServer *srvtopo.ResilientServer
var healthCheck discovery.HealthCheck

var initFakeZK func()
Expand All @@ -72,7 +73,7 @@ func main() {
ts := topo.Open()
defer ts.Close()

resilientSrvTopoServer = vtgate.NewResilientSrvTopoServer(ts, "ResilientSrvTopoServer")
resilientServer = srvtopo.NewResilientServer(ts, "ResilientSrvTopoServer")

healthCheck = discovery.NewHealthCheck(*healthCheckRetryDelay, *healthCheckTimeout)
healthCheck.RegisterStats()
Expand All @@ -89,7 +90,7 @@ func main() {
}
}

vtg := vtgate.Init(context.Background(), healthCheck, ts, resilientSrvTopoServer, *cell, *retryCount, tabletTypes)
vtg := vtgate.Init(context.Background(), healthCheck, ts, resilientServer, *cell, *retryCount, tabletTypes)

servenv.OnRun(func() {
addStatusParts(vtg)
Expand Down
6 changes: 3 additions & 3 deletions go/vt/discovery/tablet_stats_cache_wait.go
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,7 @@ import (
"golang.org/x/net/context"

"github.com/youtube/vitess/go/vt/concurrency"
"github.com/youtube/vitess/go/vt/topo"
"github.com/youtube/vitess/go/vt/srvtopo"

topodatapb "github.com/youtube/vitess/go/vt/proto/topodata"
)
Expand Down Expand Up @@ -66,7 +66,7 @@ func (tc *TabletStatsCache) WaitForAnyTablet(ctx context.Context, cell, keyspace
// WaitForAllServingTablets waits for at least one healthy serving tablet in
// the given cell for all keyspaces / shards before returning.
// It will return ctx.Err() if the context is canceled.
func (tc *TabletStatsCache) WaitForAllServingTablets(ctx context.Context, ts topo.SrvTopoServer, cell string, types []topodatapb.TabletType) error {
func (tc *TabletStatsCache) WaitForAllServingTablets(ctx context.Context, ts srvtopo.Server, cell string, types []topodatapb.TabletType) error {
keyspaceShards, err := findAllKeyspaceShards(ctx, ts, cell)
if err != nil {
return err
Expand All @@ -76,7 +76,7 @@ func (tc *TabletStatsCache) WaitForAllServingTablets(ctx context.Context, ts top
}

// findAllKeyspaceShards goes through all serving shards in the topology
func findAllKeyspaceShards(ctx context.Context, ts topo.SrvTopoServer, cell string) (map[keyspaceShard]bool, error) {
func findAllKeyspaceShards(ctx context.Context, ts srvtopo.Server, cell string) (map[keyspaceShard]bool, error) {
ksNames, err := ts.GetSrvKeyspaceNames(ctx, cell)
if err != nil {
return nil, err
Expand Down
10 changes: 7 additions & 3 deletions go/vt/discovery/tablet_stats_cache_wait_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -17,12 +17,14 @@ limitations under the License.
package discovery

import (
"flag"
"reflect"
"testing"
"time"

"golang.org/x/net/context"

"github.com/youtube/vitess/go/vt/srvtopo"
"github.com/youtube/vitess/go/vt/topo"
"github.com/youtube/vitess/go/vt/topo/memorytopo"

Expand All @@ -33,9 +35,11 @@ import (
func TestFindAllKeyspaceShards(t *testing.T) {
ctx := context.Background()
ts := memorytopo.NewServer("cell1", "cell2")
flag.Set("srv_topo_cache_ttl", "0s") // No caching values
rs := srvtopo.NewResilientServer(ts, "TestFindAllKeyspaceShards")

// no keyspace / shards
ks, err := findAllKeyspaceShards(ctx, ts, "cell1")
ks, err := findAllKeyspaceShards(ctx, rs, "cell1")
if err != nil {
t.Errorf("unexpected error: %v", err)
}
Expand All @@ -60,7 +64,7 @@ func TestFindAllKeyspaceShards(t *testing.T) {
}

// get it
ks, err = findAllKeyspaceShards(ctx, ts, "cell1")
ks, err = findAllKeyspaceShards(ctx, rs, "cell1")
if err != nil {
t.Errorf("unexpected error: %v", err)
}
Expand Down Expand Up @@ -98,7 +102,7 @@ func TestFindAllKeyspaceShards(t *testing.T) {
}

// get it
ks, err = findAllKeyspaceShards(ctx, ts, "cell1")
ks, err = findAllKeyspaceShards(ctx, rs, "cell1")
if err != nil {
t.Errorf("unexpected error: %v", err)
}
Expand Down
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