ticdc v4.0.10

Improvements

• Enable the old value feature if the protocol is maxwell #1144
• Enable the unified sorter feature by default #1230

Bug Fixes

• Fix the maxwell issues, including the base64 data output and output TSO to unix timestamp #1173
• Fix a bug that outdated metadata might cause the newly created changefeed abnormal #1184
• Fix create receiver on closed notifier #1199
• Fix memory accumulated when owner consume etcd update slow #1227
• Fix the issue that max-batch-size does not take effect #1253
• Fix cleanup stale tasks before capture information is constructed #1280
• Roll back transactions to recycle db conn for MySQL sink #1285

ticdc v4.0.9

Improvements

• Add an alert for enabling TiKV's Hibernate Region feature #1120
• Reduce memory usage in the schema storage #1127
• Add the feature of unified sorter, which accelerates replication when the data size of the incremental scan is large (experimental) #1122
• Support configuring the maximum message size and the maximum message batch in the TiCDC Open Protocol message (only for Kafka sink) #1079

Bug Fixes

• Fix the issue that multiple owners might exist when the owner campaign key is deleted #1104
• Fix a bug that TiCDC might fail to continue replicating data when a TiKV node crashes or recovers from a crash. This bug only exists in v4.0.8. #1198
• Fix the issue that the metadata is repeatedly flushed to etcd before a table is initialized #1191
• Fix an issue of replication interruption caused by early GC or the latency of updating TableInfo when the schema storage caches TiDB tables #1114
• Fix the issue that the schema storage costs too much memory when DDL operations are frequent #1127
• Fix the goroutine leak when a changefeed is paused or stopped #1075
• Increase the maximum retry timeout to 60 seconds in Kafka producer to prevent replication interruption caused by the service or network jitter in the downstream Kafka #1118
• Fix a bug that the Kafka batch size does not take effect #1112
• Fix a bug that some tables' row change might be lost when the network between TiCDC and PD has jitter and when there are paused changefeeds being resumed at the same time #1213
• Fix a bug that the TiCDC process might exit when the network between TiCDC and PD is not stable #1218
• Use a singleton PD client in TiCDC and fix a bug that TiCDC closes PD client by accident which causes replication block #1217
• Fix a bug that the cdc owner might consume too much memory in the etcd watch client

ticdc v4.0.8

New Features

• Support snapshot-level consistent replication #932

Improvements

• Print statistics in MySQL sink periodically #1023

Bug Fixes

• Fix the unexpected exit caused by the failure to update the GC safepoint #979
• Fix the issue that the task status is unexpectedly flushed because of the incorrect mod revision cache #1017
• Fix the unexpected empty Maxwell messages #978

ticdc v4.0.7

Improvements

• Support translating more execution-efficient SQL statements in MySQL sink when the old value feature is enabled #955

ticdc v4.0.6

New Features

• Support outputting data in the maxwell format #869

Improvements

• Skip resolved lock during puller initialization #910
• Reduce PD write frequency #937

Bug Fixes

• Fix the issue that TiCDC leaks memory in some cases #942
• Fix the issue that TiCDC might panic in Kafka sink #912
• Fix the issue that CommitTs or ResolvedTs (CRTs) might be less than resolvedTs in puller #927
• Fix the issue that changefeed might be blocked by MySQL driver #936
• Fix the incorrect Resolved Ts interval of TiCDC #8573

ticdc v4.0.5

New Features

• Support Kafka SSL connection #764
• Support outputting the old value #708
• Add the column flags #796
• Support outputting the DDL statements and table schema of the previous version #799

Improvements

• Lower the frequency of getting TSO #801

Bug Fixes

• Fix the issue that the failed changefeed cannot be removed #782
• Fix invalid delete events by selecting one unique index as the handle index #787
• Fix the bug that GC safepoint is forwarded beyond the checkpoint of stopped changefeed #797
• Fix the bug that the network I/O waiting blocks tasks to exit #825

ticdc v4.0.4

Note: The current version of TiCDC is still experimental and not recommended for use in a production environment.

ticdc v4.0.3

Note: The current version of TiCDC is still experimental and not recommended for use in a production environment.

ticdc v4.0.2

Note: The current version of TiCDC is still experimental and not recommended for use in a production environment.

ticdc v4.0.1

Note: The current version of TiCDC is still experimental and not recommended for use in a production environment.