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ZOOKEEPER-5012: guard zkDb close in QuorumPeer shutdown #2345

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ZOOKEEPER-5012: guard zkDb close in QuorumPeer shutdown #2345

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@seekskyworld seekskyworld commented Jan 14, 2026

Issue: https://issues.apache.org/jira/browse/ZOOKEEPER-5012

Summary

  • Guard zkDb close in QuorumPeer.shutdown when initialization did not finish.
  • Add a QuorumPeerTest regression for shutdown without zkDb.

Motivation

  • During restart, shutdown can run before zkDb is initialized; avoid NPE while preserving cleanup.

Validation

  • mvn -pl zookeeper-server -Dtest=QuorumPeerTest#testShutdownWithoutZkDbDoesNotThrow test

@seekskyworld seekskyworld force-pushed the fix/5012-quorumpeer-shutdown-npe branch from 9620c67 to 0703e20 Compare January 21, 2026 02:19
@seekskyworld seekskyworld changed the base branch from branch-3.9 to master January 21, 2026 02:20
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