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Posted to dev@hbase.apache.org by "Ashu Pachauri (JIRA)" <ji...@apache.org> on 2017/08/09 20:59:00 UTC

[jira] [Created] (HBASE-18549) Unclaimed replication queues can go undetected

Ashu Pachauri created HBASE-18549:
-------------------------------------

             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


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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