Ashu Pachauri created HBASE-18549:
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Summary: Unclaimed replication queues can go undetected
Key: HBASE-18549
URL: https://issues.apache.org/jira/browse/HBASE-18549
Project: HBase
Issue Type: Bug
Components: Replication
Reporter: Ashu Pachauri
Priority: Critical
Fix For: 1.3.2
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We have come across this situation multiple times where a zookeeper issues can
cause NodeFailoverWorker to fail picking up replication queue for a dead region
server silently. One example is when the znode size for a particular queue
exceed jute.maxBuffer value.
There can be other situations that may lead to this and just go undetected. We
need to have a metric for number of unclaimed replication queues. This will
help in mitigating the problem through alerting on the metric and identifying
underlying issues.
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