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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-9109) Null pointer exception while invoking coprocessor.
Date Mon, 11 Nov 2013 20:25:18 GMT

     [ https://issues.apache.org/jira/browse/HBASE-9109?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Purtell resolved HBASE-9109.
-----------------------------------

       Resolution: Invalid
    Fix Version/s:     (was: 0.98.0)

> Null pointer exception while invoking coprocessor.
> --------------------------------------------------
>
>                 Key: HBASE-9109
>                 URL: https://issues.apache.org/jira/browse/HBASE-9109
>             Project: HBase
>          Issue Type: Bug
>          Components: Client, Coprocessors
>    Affects Versions: 0.98.0
>         Environment: OS - CentOS release 6.2 (Final)
> JAVA - java version "1.6.0_22"
>        OpenJDK Runtime Environment (IcedTea6 1.10.4) (rhel-1.41.1.10.4.el6-x86_64)
>         OpenJDK 64-Bit Server VM (build 20.0-b11, mixed mode)
> Configuration: 3 node cluster with Hadoop-3.0
>            Reporter: Mayur
>
> This problem is observed when region server dies while an endpoint coprocessor is executing.
On the client side channel.getLastRegion() returns null and we get null pointer exception
while updating result map. 
> Following stack-trace is seen on client:
> Caused by: java.lang.NullPointerException
> at org.apache.hadoop.hbase.util.Bytes.compareTo(Bytes.java:981)
> at org.apache.hadoop.hbase.util.Bytes$ByteArrayComparator.compare(Bytes.java:128)
> at org.apache.hadoop.hbase.util.Bytes$ByteArrayComparator.compare(Bytes.java:119)
> at java.util.TreeMap.put(TreeMap.java:530)
> at java.util.Collections$SynchronizedMap.put(Collections.java:1979)
> at org.apache.hadoop.hbase.client.HTable$17.update(HTable.java:1372)
> at org.apache.hadoop.hbase.client.HTable$18.call(HTable.java:1401)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
> at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:662)



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