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Posted to issues@hbase.apache.org by "Ashu Pachauri (JIRA)" <ji...@apache.org> on 2016/07/28 22:41:20 UTC

[jira] [Created] (HBASE-16302) age of last shipped op is not representative for multiwal

Ashu Pachauri created HBASE-16302:
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             Summary: age of last shipped op is not representative for multiwal
                 Key: HBASE-16302
                 URL: https://issues.apache.org/jira/browse/HBASE-16302
             Project: HBase
          Issue Type: Improvement
          Components: Replication
            Reporter: Ashu Pachauri
            Assignee: Ashu Pachauri


Replication exports metric ageOfLastShippedOp as an indication of how much replication is lagging. But, with multiwal enabled, it's not representative because replication could be lagging for a long time for one wal group (something wrong with a particular region) while being fine for others. The ageOfLastShippedOp becomes a useless metric for alerting in such a case.

An example improvement can be providing age of last shipped op per wal group.



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