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From "Jim Kellerman (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2693) [hbase] NPE in getClosestRowBefore
Date Thu, 24 Jan 2008 00:40:35 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12561893#action_12561893
] 

Jim Kellerman commented on HADOOP-2693:
---------------------------------------

Agreed that this is transitory. Also should not occur after HADOOP-2636 except after new table
creation because it does not flush the cache if there are zero entries (which would create
an empty MapFile)

> [hbase] NPE in getClosestRowBefore
> ----------------------------------
>
>                 Key: HADOOP-2693
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2693
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/hbase
>            Reporter: stack
>            Assignee: Bryan Duxbury
>         Attachments: 2693.patch
>
>
> Just saw this in a load test:
> {code}
> 2008-01-23 22:43:42,831 INFO org.apache.hadoop.ipc.Server: IPC Server handler 8 on 60020,
call getClosestRowBefore(.META.,,1, TestTable,,999999999999999, 9223372036854775807) from
XX.XX.XX.141:49068: error: java.io.IOException: java.lang.NullPointerException
> java.io.IOException: java.lang.NullPointerException
>         at org.apache.hadoop.io.Text.compareTo(Text.java:278)
>         at org.apache.hadoop.hbase.HStore.getRowKeyAtOrBefore(HStore.java:1846)
>         at org.apache.hadoop.hbase.HRegion.getClosestRowBefore(HRegion.java:1109)
>         at org.apache.hadoop.hbase.HRegionServer.getClosestRowBefore(HRegionServer.java:1434)
>         at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at org.apache.hadoop.hbase.ipc.HbaseRPC$Server.call(HbaseRPC.java:413)
>         at org.apache.hadoop.ipc.Server$Handler.run(Server.java:908)
> {code}

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