Xinhao GU created RATIS-2278:
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Summary: Follower Fails to Append Entries Due to Index Validation
Race Condition in
Key: RATIS-2278
URL: https://issues.apache.org/jira/browse/RATIS-2278
Project: Ratis
Issue Type: Bug
Components: gRPC, LogService, server
Reporter: Xinhao GU
Assignee: Xinhao GU
h1. *Problem Description*
When a follower receives overlapping {{appendEntries}} requests from the
leader, it may throw an {{IllegalStateException}} during log index validation.
Specifically, the {{NavigableIndices}} class fails to handle concurrent log
appends properly, causing the follower to incorrectly reject valid entries with
an "index mismatch" error (e.g., expecting index {{16186}} but receiving
{{{}16093{}}}).
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