[test] Wait for local leader readiness - #4053
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Ensure waitAndGetLeader does not return until the assigned replica has completed its local leader transition. Co-Authored-By: Codex <noreply@openai.com> AI-Model: gpt-5.6-sol AI-Contributed/Feature: 0/0 AI-Contributed/UT: 15/15
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August 20, 2026 04:28
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Purpose
Linked issue: close #4052
LogFetcherITCase#testFetchWithSchemaChangefailed in this CI job becausewaitAndGetLeaderreturned the ZooKeeper-assigned leader before that TabletServer had completed its local leader transition. The test could then send a leader-only request too early and receive an error response withoutbase_offset.Brief change log
FlussClusterExtension#waitAndGetLeaderwait for both the ZooKeeper leader assignment and the corresponding locally ready leader replica.Tests
./mvnw -pl fluss-client -am -Dtest=LogFetcherITCase#testFetchWithSchemaChange -Dsurefire.failIfNoSpecifiedTests=false testAPI and Format
No API or format changes.
Documentation
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