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From "Guanghao Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-16947) Some improvements for DumpReplicationQueues tool
Date Wed, 26 Oct 2016 13:07:58 GMT
Guanghao Zhang created HBASE-16947:

             Summary: Some improvements for DumpReplicationQueues tool
                 Key: HBASE-16947
                 URL: https://issues.apache.org/jira/browse/HBASE-16947
             Project: HBase
          Issue Type: Improvement
          Components: Replication
            Reporter: Guanghao Zhang

Recently we met too many replication WALs problem in our production cluster. We need the DumpReplicationQueues
tool to analyze the replication queues info in zookeeper. So I backport HBASE-16450 to our
branch based 0.98 and did some improvements for it.

1. Show the dead regionservers under replication/rs znode. When there are too many WALs under
znode, it can't be atomic transferred to new rs znode. So the dead rs znode will be leaved
on zookeeper.
2. Make a summary about all the queues that belong to peer has been deleted. 
3. Aggregate all regionservers' size of replication queue. Now the regionserver report ReplicationLoad
to master, but there were not a aggregate metrics for replication.
4. Show how many WALs which can not found on hdfs. But the reason (WAL Not Found) need more
time to dig.

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