[Config] Vshard configuration reference

[andreyaksenov]

Related doc issue: #3659

Product: Tarantool
Since: 3.0
Root document:

• https://www.tarantool.io/en/doc/latest/reference/reference_rock/vshard/vshard_ref/
• https://www.tarantool.io/en/doc/latest/reference/configuration/configuration_reference/

SME: @ Totktonada

Details

Update the Vshard configuration reference to using a new configuration approach.

See also:

• https://github.com/tarantool/vshard?tab=readme-ov-file#configuration
• [3pt] feedback: Configuration reference | Tarantool #2255
• Cluster configuration in 3.0 tarantool#1023

Schema:

• Sharding: https://github.com/tarantool/tarantool/blob/eaff238d97ec20f1131029f1d4bc6aab6d52cf77/src/box/lua/config/instance_config.lua#L1888
• Advertise: https://github.com/tarantool/tarantool/blob/eaff238d97ec20f1131029f1d4bc6aab6d52cf77/src/box/lua/config/instance_config.lua#L1008

Environment variables:

| TT_SHARDING_BUCKET_COUNT                              | integer        | 3000                                          | Community Edition  |
| TT_SHARDING_CONNECTION_OUTDATE_DELAY                  | number         | nil                                           | Community Edition  |
| TT_SHARDING_DISCOVERY_MODE                            | string         | on                                            | Community Edition  |
| TT_SHARDING_FAILOVER_PING_TIMEOUT                     | number         | 5                                             | Community Edition  |
| TT_SHARDING_LOCK                                      | boolean        | nil                                           | Community Edition  |
| TT_SHARDING_REBALANCER_DISBALANCE_THRESHOLD           | number         | 1                                             | Community Edition  |
| TT_SHARDING_REBALANCER_MAX_RECEIVING                  | integer        | 100                                           | Community Edition  |
| TT_SHARDING_REBALANCER_MAX_SENDING                    | integer        | 1                                             | Community Edition  |
| TT_SHARDING_REBALANCER_MODE                           | string         | auto                                          | Community Edition  |
| TT_SHARDING_ROLES                                     | array          | nil                                           | Community Edition  |
| TT_SHARDING_SCHED_MOVE_QUOTA                          | number         | 1                                             | Community Edition  |
| TT_SHARDING_SCHED_REF_QUOTA                           | number         | 300                                           | Community Edition  |
| TT_SHARDING_SHARD_INDEX                               | string         | bucket_id                                     | Community Edition  |
| TT_SHARDING_SYNC_TIMEOUT                              | number         | 1                                             | Community Edition  |
| TT_SHARDING_ZONE                                      | integer        | nil                                           | Community Edition  |