kv-client(cdc): fix the bug that region errors can be lost (#9963) #9977
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This is an automated cherry-pick of #9963
What problem does this PR solve?
Fix the bug that region errors can be lost.
Issue Number: close #9673
What is changed and how it works?
Every region worker consumes region events from a queue. In
sharedRegionWorker.handleSingleRegionError, it clears the Region State from the source stream directly. It's wrong because the event can be a stale one and the Region State in the stream may be created after the region error is handled.This PR fixes the problem.
Check List
Tests
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Will it cause performance regression or break compatibility?
Do you need to update user documentation, design documentation or monitoring documentation?
Release note