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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4112) Creating table may throw NullPointerException
Date Tue, 19 Jul 2011 03:44:58 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4112?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13067476#comment-13067476
] 

Ted Yu commented on HBASE-4112:
-------------------------------

Integrated to branch and TRUNK.

Thanks for the patch Jinchao.

> Creating table may throw NullPointerException
> ---------------------------------------------
>
>                 Key: HBASE-4112
>                 URL: https://issues.apache.org/jira/browse/HBASE-4112
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 0.90.3
>            Reporter: gaojinchao
>            Assignee: gaojinchao
>             Fix For: 0.90.4
>
>         Attachments: HBASE-4112_Trunk.patch, HBASE-4112_branch90V1.patch
>
>
>  It happened in latest branch 0.90. but I can't reproduce it.
> >
> > It seems using api getHRegionInfoOrNull is better or check the input parameter before
call getHRegionInfo.
> >
> > Code:
> >  public static Writable getWritable(final byte [] bytes, final 
> > Writable w)
> >  throws IOException {
> >    return getWritable(bytes, 0, bytes.length, w);
> >  }
> > return getWritable(bytes, 0, bytes.length, w);  // It seems input 
> > parameter bytes is null
> >
> > logs:
> > 11/07/15 10:15:42 INFO zookeeper.ClientCnxn: Socket connection 
> > established to C4C3.site/157.5.100.3:2181, initiating session
> > 11/07/15 10:15:42 INFO zookeeper.ClientCnxn: Session establishment 
> > complete on server C4C3.site/157.5.100.3:2181, sessionid = 0x2312b8e3f700002, negotiated
timeout = 180000 [INFO] Create : ufdr111 222!
> > [INFO] Create : ufdr111 start!
> > java.lang.NullPointerException
> >        at 
> > org.apache.hadoop.hbase.util.Writables.getWritable(Writables.java:75)
> >        at 
> > org.apache.hadoop.hbase.util.Writables.getHRegionInfo(Writables.java:1
> > 19)
> >        at 
> > org.apache.hadoop.hbase.client.HBaseAdmin$1.processRow(HBaseAdmin.java
> > :306)
> >        at 
> > org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:1
> > 90)
> >        at 
> > org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:9
> > 5)
> >        at 
> > org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:7
> > 3)
> >        at 
> > org.apache.hadoop.hbase.client.HBaseAdmin.createTable(HBaseAdmin.java:
> > 325)
> >        at createTable.main(createTable.java:96)
> >

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