Description

• When creating an asynchronous replication instance, the consistency mode can specified.
• In strict consistency mode, data from different partitions and tables can be read consistently.

Steps

• Create changefeeds with virtual timestamps and barriers: Consistency option (core part) #11970
• Assign range of TRowVersions (virtual timestamps) to WriteTxIds in Replication Controller: Assign tx id to version #11440
• Use WriteTxId when writing changes: Write changes using WriteTxId in consistent mode #11374
• Commit corresponding range of versions (by specifying WriteTxId) when receiving a barrier: Commit replication changes #12680

Changelog entry

Global data consistency in asynchronous replication.

Changelog category

• New feature