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Posted to issues@hbase.apache.org by "Ted Yu (JIRA)" <ji...@apache.org> on 2018/01/26 19:14:00 UTC
[jira] [Commented] (HBASE-19870) Fix the NEP in
ReadOnlyZKClient#run
[ https://issues.apache.org/jira/browse/HBASE-19870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16341455#comment-16341455 ]
Ted Yu commented on HBASE-19870:
--------------------------------
Good catch.
testGetWithDelayCompletion -> testGetWithDelayedCompletion
The 'NEP' in subject should be NPE.
> Fix the NEP in ReadOnlyZKClient#run
> -----------------------------------
>
> Key: HBASE-19870
> URL: https://issues.apache.org/jira/browse/HBASE-19870
> Project: HBase
> Issue Type: Sub-task
> Reporter: Chia-Ping Tsai
> Assignee: Chia-Ping Tsai
> Priority: Major
> Fix For: 2.0.0-beta-2
>
> Attachments: HBASE-19870.v0.patch
>
>
> I notice a NPE from my jenkins.
> {code}
> 2018-01-26 17:26:41,078 DEBUG [M:0;8546d406e429:40557-EventThread] zookeeper.ZKWatcher(443): replicationLogCleaner-0x161337ddc090004, quorum=localhost:56060, baseZNode=/hbase Received ZooKeeper Event, type=None, state=Disconnected, path=null
> java.lang.NullPointerException
> at org.apache.hadoop.hbase.zookeeper.ReadOnlyZKClient.run(ReadOnlyZKClient.java:322)
> at java.lang.Thread.run(Thread.java:748)
> {code}
> If any zk task invokes the #onComplete late, the count of current requests will not zero and then the null from task queue will destroy the work thread in ReadOnlyZKClient.
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