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From "Matteo Bertozzi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14048) isPBMagicPrefix should always check for null data
Date Thu, 16 Jul 2015 02:10:05 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14629076#comment-14629076
] 

Matteo Bertozzi commented on HBASE-14048:
-----------------------------------------

+1

> isPBMagicPrefix should always check for null data
> -------------------------------------------------
>
>                 Key: HBASE-14048
>                 URL: https://issues.apache.org/jira/browse/HBASE-14048
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.98.13
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>             Fix For: 0.98.14
>
>         Attachments: HBASE-14048-0.98.patch
>
>
> Example:
> {noformat}
> 2015-07-09 04:20:30,649 ERROR [ver60020-EventThread] zookeeper.ClientCnxn - Error while
calling watcher 
> java.lang.NullPointerException
>     at org.apache.hadoop.hbase.protobuf.ProtobufUtil.isPBMagicPrefix(ProtobufUtil.java:241)
>     at org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs.startNewSubprocedure(ZKProcedureMemberRpcs.java:203)
>     at org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs.waitForNewProcedures(ZKProcedureMemberRpcs.java:172)
>     at org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs.access$100(ZKProcedureMemberRpcs.java:55)
>     at org.apache.hadoop.hbase.procedure.ZKProcedureMemberRpcs$1.nodeChildrenChanged(ZKProcedureMemberRpcs.java:107)
>     at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.process(ZooKeeperWatcher.java:358)
>     at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:522)
>     at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498)
> {noformat}
> This is observed with 0.98.
> There may be a deeper cause but let's start by fixing the obvious problem. Audit ProcedureV2
also on later branches.



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