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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-2989) [replication] RSM won't cleanup after locking if 0 peers
Date Mon, 13 Sep 2010 17:30:32 GMT
[replication] RSM won't cleanup after locking if 0 peers

                 Key: HBASE-2989
                 URL: https://issues.apache.org/jira/browse/HBASE-2989
             Project: HBase
          Issue Type: Bug
            Reporter: Jean-Daniel Cryans
            Assignee: Jean-Daniel Cryans
            Priority: Minor
             Fix For: 0.90.0

Small bug in ReplicationSourceManager, it won't cleanup after locking another's RS znode if
it didn't contain any queue at all. It happens in transferQueues():

LOG.info("Moving " + rsZnode + "'s hlogs to my queue");
    SortedMap<String, SortedSet<String>> newQueues =
    if (newQueues == null || newQueues.size() == 0) {

That last line should be before the if, so that it deletes the lock znode and the RS znode.
Currently a lot of cruft piles up in ZK after a few restarts with replication enabled and
no queues, or in slave RSs.

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