package replicationdata

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Configuration holds replication configuration information gathered from performance_schema and global variables.

Used in: FullStatus

• double heartbeat_interval = 1

  HeartbeatInterval controls the heartbeat interval that the primary sends to the replica

• int32 replica_net_timeout = 2

  ReplicaNetTimeout specifies the number of seconds to wait for more data or a heartbeat signal from the source before the replica considers the connection broken

FullStatus contains the full status of MySQL including the replication information, semi-sync information, GTID information among others

Used in: tabletmanagerdata.FullStatusResponse, vtctldata.GetFullStatusResponse

• uint32 server_id = 1

• string server_uuid = 2

• optional Status replication_status = 3

• optional PrimaryStatus primary_status = 4

• string gtid_purged = 5

• string version = 6

• string version_comment = 7

• bool read_only = 8

• string gtid_mode = 9

• string binlog_format = 10

• string binlog_row_image = 11

• bool log_bin_enabled = 12

• bool log_replica_updates = 13

• bool semi_sync_primary_enabled = 14

• bool semi_sync_replica_enabled = 15

• bool semi_sync_primary_status = 16

• bool semi_sync_replica_status = 17

• uint32 semi_sync_primary_clients = 18

• uint64 semi_sync_primary_timeout = 19

• uint32 semi_sync_wait_for_replica_count = 20

• bool super_read_only = 21

• optional Configuration replication_configuration = 22

• bool disk_stalled = 23

• bool semi_sync_blocked = 24

• topodata.TabletType tablet_type = 25

• repeated ShardPeerHealth shard_peer_health = 26

  shard_peer_health, when --track-shard-tablet-health is set, carries this tablet's most recent liveness observation of its shard's current primary's vttablet (not of all shard peers). VTOrc uses it to form a quorum before failing over an unreachable primary vttablet.

PrimaryStatus is the replication status for a MySQL primary (returned by 'show binary log status').

Used in: FullStatus, tabletmanagerdata.DemotePrimaryResponse, tabletmanagerdata.PrimaryStatusResponse

• string position = 1

• string file_position = 2

• string server_uuid = 3

ShardPeerHealth is one tablet's most recent liveness observation of a single shard peer — currently its shard's primary (see the FullStatus shard_peer_health field) — produced by the shard-tablet-health ping monitor. It carries raw signals; consumers (VTOrc) apply their own threshold/freshness policy.

Used in: FullStatus

• optional topodata.TabletAlias tablet_alias = 1

• int64 consecutive_ping_failures = 2

• optional vttime.Time last_successful_ping = 3

• optional vttime.Time last_attempted_ping = 4

• optional vttime.Duration time_since_last_attempted_ping = 5

  time_since_last_attempted_ping is the age of last_attempted_ping, measured with the reporting tablet's own clock when the report was produced. Consumers should prefer it over comparing last_attempted_ping against their own clock, which is skew-sensitive.

Status is the replication status for MySQL/MariaDB/File-based. Returned by a flavor-specific command and parsed into a Position and fields.

Used in: FullStatus, StopReplicationStatus, tabletmanagerdata.ReplicationStatusResponse, vtctldata.ShardReplicationPositionsResponse

• string position = 1

• uint32 replication_lag_seconds = 4

• string source_host = 5

• int32 source_port = 6

• int32 connect_retry = 7

• string relay_log_position = 8

  RelayLogPosition will be empty for flavors that do not support returning the full GTIDSet from the relay log, such as MariaDB.

• string file_position = 9

• string relay_log_source_binlog_equivalent_position = 10

• uint32 source_server_id = 11

• string source_uuid = 12

• int32 io_state = 13

• string last_io_error = 14

• int32 sql_state = 15

• string last_sql_error = 16

• string relay_log_file_position = 17

• string source_user = 18

• uint32 sql_delay = 19

• bool auto_position = 20

• bool using_gtid = 21

• bool has_replication_filters = 22

• bool ssl_allowed = 23

• bool replication_lag_unknown = 24

• bool backup_running = 25

• bool semi_sync_primary_enabled = 26

• bool semi_sync_replica_enabled = 27

• bool semi_sync_primary_status = 28

• bool semi_sync_replica_status = 29

StopReplicationMode is used to provide controls over how replication is stopped.

Used in: tabletmanagerdata.StopReplicationAndGetStatusRequest

• IOANDSQLTHREAD = 0

• IOTHREADONLY = 1

StopReplicationStatus represents the replication status before calling StopReplication, and the replication status collected immediately after calling StopReplication.

Used in: tabletmanagerdata.StopReplicationAndGetStatusResponse

• optional Status before = 1

• optional Status after = 2