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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16144) Replication queue's lock will live forever if RS acquiring the lock has died prematurely
Date Tue, 05 Jul 2016 18:55:11 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15363009#comment-15363009
] 

Hudson commented on HBASE-16144:
--------------------------------

FAILURE: Integrated in HBase-Trunk_matrix #1174 (See [https://builds.apache.org/job/HBase-Trunk_matrix/1174/])
HBASE-16144 Replication queue's lock will live forever if RS acquiring (tedyu: rev b5cdb38dc71a5b53a41879a945f9d596c07a0630)
* hbase-server/src/test/java/org/apache/hadoop/hbase/replication/TestMultiSlaveReplication.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/master/cleaner/ReplicationZKLockCleanerChore.java
* hbase-client/src/main/java/org/apache/hadoop/hbase/replication/ReplicationQueuesZKImpl.java
* hbase-client/src/main/java/org/apache/hadoop/hbase/replication/ReplicationFactory.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java


> Replication queue's lock will live forever if RS acquiring the lock has died prematurely
> ----------------------------------------------------------------------------------------
>
>                 Key: HBASE-16144
>                 URL: https://issues.apache.org/jira/browse/HBASE-16144
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 1.2.1, 1.1.5, 0.98.20
>            Reporter: Phil Yang
>            Assignee: Phil Yang
>         Attachments: HBASE-16144-v1.patch, HBASE-16144-v2.patch, HBASE-16144-v3.patch,
HBASE-16144-v4.patch
>
>
> In default, we will use multi operation when we claimQueues from ZK. But if we set hbase.zookeeper.useMulti=false,
we will add a lock first, then copy nodes, finally clean old queue and the lock. 
> However, if the RS acquiring the lock crash before claimQueues done, the lock will always
be there and other RS can never claim the queue.



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