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https://issues.apache.org/jira/browse/HBASE-18330?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Purtell updated HBASE-18330:
-----------------------------------
Resolution: Fixed
Fix Version/s: 1.1.12
3.0.0
2.0.0
Status: Resolved (was: Patch Available)
> NPE in ReplicationZKLockCleanerChore
> ------------------------------------
>
> Key: HBASE-18330
> URL: https://issues.apache.org/jira/browse/HBASE-18330
> Project: HBase
> Issue Type: Bug
> Components: master, Replication
> Affects Versions: 1.2.5
> Reporter: Minwoo Kang
> Assignee: Andrew Purtell
> Fix For: 2.0.0, 3.0.0, 1.4.0, 1.3.2, 1.5.0, 1.2.7, 1.1.12
>
> Attachments: HBASE-18330-branch-1.patch, HBASE-18330-branch-2.patch,
> HBASE-18330-master.patch
>
>
> While I am watching HMaster log, I found NullPointerException Logs.
> This occurs every minute.
> --------
> 2017-07-06 09:05:02,579 DEBUG [,1498445640728_ChoreService_1]
> cleaner.CleanerChore: Removing: hdfs://*** from archive
> 2017-07-06 09:05:02,585 ERROR [,1498445640728_ChoreService_2]
> hbase.ScheduledChore: Caught error
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.master.cleaner.ReplicationZKLockCleanerChore.chore(ReplicationZKLockCleanerChore.java:80)
> at org.apache.hadoop.hbase.ScheduledChore.run(ScheduledChore.java:185)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> at
> org.apache.hadoop.hbase.JitterScheduledThreadPoolExecutorImpl$JitteredRunnableScheduledFuture.run(JitterScheduledThreadPoolExecutorImpl.java:110)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> 2017-07-06 09:05:02,585 DEBUG [,1498445640728_ChoreService_1]
> cleaner.CleanerChore: Removing: hdfs://*** from archive
> 2017-07-06 09:05:02,586 DEBUG [,1498445640728_ChoreService_1]
> cleaner.CleanerChore: Removing: hdfs://*** from archive
> --------
> Here is related code:
> List<String> replicators = queues.getListOfReplicators();
> for (String replicator: replicators) {
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