Bharath Vissapragada created HBASE-25743:
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Summary: Retry REQUESTTIMEOUT KeeperExceptions from ZK
Key: HBASE-25743
URL: https://issues.apache.org/jira/browse/HBASE-25743
Project: HBase
Issue Type: Bug
Components: Zookeeper
Affects Versions: 3.0.0-alpha-1, 1.7.0, 2.5.0, 2.4.3, 2.3.6
Reporter: Bharath Vissapragada
Assignee: Bharath Vissapragada
Starting ZOOKEEPER-2251, client requests exceeding a timeout can throw a
KeeperException with REQUESTTIMEOUT opcode set. RecoverableZookeeper doesn't
transparently retry in such case. This was causing RS aborts when there is a
flaky ZK quorum member serving slow requests (especially in cases like rolling
upgrades and such).
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