schema version updates #48125 @cfzjywxk • TiKV • Add an API endpoint /async_tasks for querying asynchronous tasks #15759 @YuJuncen • Add priority labels to gRPC monitoring to display resource group data with a callback. • The following is the time cost diagram of async write operations when the asynchronous IO is disabled: Diagram( NonTerminal("Propose Wait"), NonTerminal("Process Command"), Choice( NonTerminal("Apply Log"), ) • The following is the time cost diagram of async write operations when the asynchronous IO is enabled: Diagram( NonTerminal("Propose Wait"), 1376 NonTerminal("Process Command"),

column into memory only when the optimizer uses the histogram statistics on that column. On-demand asynchronous statistics loading does not affect the performance of SQL execution but might provide incomplete The Raft algorithm ensures that each log is replicated to the DR based on the label. • async: Asynchronous replication mode. In this mode, the DR data center is not fully synchronized with the primary waiting time for switching to asynchronous replication mode when network isolation or failure occurs. If the time of network failure exceeds the waiting time, asynchronous replication mode is enabled. The

of tables in the block list #7622 @GMHDBJD • Improve the write efficiency of DM relay by using asynchronous write and batch write #7580 @GMHDBJD • Optimize the error messages in DM precheck #7621 @buchuitoudegou with a callback. • The following is the time cost diagram of async write operations when the asynchronous IO is disabled: Diagram( NonTerminal("Propose Wait"), NonTerminal("Process Command"), Choice( NonTerminal("Apply Log"), ) • The following is the time cost diagram of async write operations when the asynchronous IO is enabled: Diagram( NonTerminal("Propose Wait"), 1322 NonTerminal("Process Command"),

with a callback. • The following is the time cost diagram of async write operations when the asynchronous IO is disabled: Diagram( NonTerminal("Propose Wait"), NonTerminal("Process Command"), Choice( NonTerminal("Apply Log"), ) • The following is the time cost diagram of async write operations when the asynchronous IO is enabled: Diagram( NonTerminal("Propose Wait"), 1362 NonTerminal("Process Command"), column into memory only when the optimizer uses the histogram statistics on that column. On-demand asynchronous statistics loading does not affect the performance of SQL execution but might provide incomplete

with a callback. • The following is the time cost diagram of async write operations when the asynchronous IO is disabled: Diagram( NonTerminal("Propose Wait"), NonTerminal("Process Command"), Choice( NonTerminal("Apply Log"), ) • The following is the time cost diagram of async write operations when the asynchronous IO is enabled: Diagram( NonTerminal("Propose Wait"), 1358 NonTerminal("Process Command"), column into memory only when the optimizer uses the histogram statistics on that column. On-demand asynchronous statistics loading does not affect the performance of SQL execution but might provide incomplete

system variable tidb_enable_async_merge_global_stats in v7.5.0. You can use it to set TiDB to use asynchronous merging of partition statistics to avoid OOM issues. In future releases, partition statistics • alter table ttl • alter table remove ttl 7.3.5.2 DDL replication considerations 7.3.5.2.1 Asynchronous execution of ADD INDEX and CREATE INDEX DDLs When the downstream is TiDB, TiCDC executes ADD owner. • address: the address of the capture. 1152 7.5.12.16 Evict an owner node This API is an asynchronous interface. If the request is successful, 200 OK is returned. The returned result only means that

system variable tidb_enable_async_merge_global_stats in v7.5.0. You can use it to set TiDB to use asynchronous merging of partition statistics to avoid OOM issues. In future releases, partition statistics with a callback. • The following is the time cost diagram of async write operations when the asynchronous IO is disabled: Diagram( NonTerminal("Propose Wait"), NonTerminal("Process Command"), Choice( NonTerminal("Apply Log"), ) • The following is the time cost diagram of async write operations when the asynchronous IO is enabled: Diagram( NonTerminal("Propose Wait"), NonTerminal("Process Command"), Choice(

system variable tidb_enable_async_merge_global_stats in v7.5.0. You can use it to set TiDB to use asynchronous merging of partition statistics to avoid OOM issues. In future releases, partition statistics with a callback. • The following is the time cost diagram of async write operations when the asynchronous IO is disabled: Diagram( NonTerminal("Propose Wait"), NonTerminal("Process Command"), Choice( NonTerminal("Apply Log"), ) • The following is the time cost diagram of async write operations when the asynchronous IO is enabled: Diagram( NonTerminal("Propose Wait"), NonTerminal("Process Command"), Choice(

with a callback. • The following is the time cost diagram of async write operations when the asynchronous IO is disabled: Diagram( NonTerminal("Propose Wait"), NonTerminal("Process Command"), Choice( NonTerminal("Apply Log"), ) • The following is the time cost diagram of async write operations when the asynchronous IO is enabled: Diagram( NonTerminal("Propose Wait"), NonTerminal("Process Command"), Choice( column into memory only when the optimizer uses the histogram statistics on that column. On-demand asynchronous statistics loading does not affect the performance of SQL execution but might provide incomplete

with a callback. • The following is the time cost diagram of async write operations when the asynchronous IO is disabled: Diagram( NonTerminal("Propose Wait"), NonTerminal("Process Command"), Choice( NonTerminal("Apply Log"), ) • The following is the time cost diagram of async write operations when the asynchronous IO is enabled: Diagram( NonTerminal("Propose Wait"), NonTerminal("Process Command"), Choice( column into memory only when the optimizer uses the histogram statistics on that column. On-demand asynchronous statistics loading does not affect the performance of SQL execution but might provide incomplete