v4.0.13 hotfix

v4.0.13-20210610-ffbdae3

kv/client: add incremental scan region count limit (#1926)

ticdc v5.0.2

Compatibility Changes

• Deprecate --sort-dir in the cdc cli changefeed command. Instead, users can set --sort-dir in the cdc server command. #1795

Improvements

• Add monitoring metrics for the table memory consumption #1885
• Optimize the memory and CPU usages during the sorting stage #1863
• Delete some useless log information that might cause user confusion #1759

Bug Fixes

• Fix the issue that the time zone information is lost in the Avro output #1712
• Support cleaning up stale temporary files in Unified Sorter and forbid sharing the sort-dir directory #1742
• Fix a deadlock bug in the KV client that occurs when many stale Regions exist #1801
• Fix the wrong help information in the --cert-allowed-cn flag #1697
• Revert the update for explicit_defaults_for_timestamp which requires the SUPER privilege when replicating data to MySQL #1750
• Support the sink flow control to reduce the risk of memory overflow #1840
• Fix a bug that the replication task might stop when moving a table #1828
• Fix the issue that the TiKV GC safe point is blocked due to the stagnation of TiCDC changefeed checkpoint #1759

Pre Release v5.2.0-alpha

sorter: provide more information on sorter IO errors (#1969)

Pre Release v5.1.0-alpha

Pre Release v5.1.0-alpha

ticdc v4.0.13

Improvements

• Implement the processor flow control to avoid memory overflow (OOM) #1751
• Support cleaning up stale temporary files in Unified Sorter and prevent multiple cdc server instances from sharing the same sort-dir directory #1741
• Add the HTTP handler for the failpoint #1732

Bug Fixes

• Fix the deadlock issue caused by the flow control when the sorter's input channel has been blocked #1779
• Fix the issue that the TiKV GC safe point is blocked due to the stagnation of TiCDC changefeed checkpoint #1756
• Revert the update in explicit_defaults_for_timestamp which requires the SUPER privilege when replicating data to MySQL #1749

ticdc v5.0.1

Bug Fixes

• Fix the concurrency issue in Unified Sorter and filter the unhelpful error messages #1678
• Fix a bug that the creation of redundant directories might interrupt the replication with MinIO #1672
• Set the default value of the explicit_defaults_for_timestamp session variable to ON to make the MySQL 5.7 downstream keep the same behavior with the upstream TiDB #1659
• Fix the issue that the incorrect handling of io.EOF might cause replication interruption #1648
• Correct the TiKV CDC endpoint CPU metric in the TiCDC dashboard #1645
• Increase defaultBufferChanSize to avoid replication blocking in some cases #1632

ticdc v5.0.0

Improvements

• Add a double confirmation when users create or resume the changefeed with the start-ts or checkpoint-ts 1 day before the current timestamp #1497

Bug Fixes

• Fix a disorder issue of the resolved ts event #1464
• Fix a data loss issue caused by wrong table scheduling due to the network problem #1508

ticdc v4.0.12

Improvements

• Add a double confirmation when users create or resume the changefeed with the start-ts or checkpoint-ts 1 day before the current timestamp #1497

Bug Fixes

• Fix a disorder issue of the resolved ts event #1464
• Fix a data loss issue caused by wrong table scheduling due to the network problem #1508

ticdc v4.0.11

Improvements

• Add the version information in the capture metadata and add the CLI version of a changefeed in the changefeed metadata #1342

Bug Fixes

• Fix a bug that the TiCDC service might unexpectedly exit when ErrTaskStatusNotExists and the closing of capture session occur at the same time #1240
• Fix the old value switch of a changefeed might be affected by another changefeed #1347
• Fix a bug that the TiCDC service might hang when processing a new changefeed with invalid the sort-engine parameter #1309
• Fix the issue of panic that occurs when getting the debugging information on none owner nodes #1349
• Fix the issue that the ticdc_processor_num_of_tables and ticdc_processor_table_resolved_ts metrics are not properly updated when when adding or removing tables #1351
• Fix the issue of potential data loss if a processor crashes when adding a table #1363
• Fix a bug that the owner might lead to abnormal TiCDC server exits during table migrations #1352
• Fix a bug that TiCDC does not exit in time after the service GC safepoint is lost #1367
• Fix a bug that the KV client might skip creating the event feed #1336
• Fix a bug that the atomicity of transactions is broken when the transactions are replicated to the downstream #1375

ticdc v5.0.0-rc

There is no release note for this version.