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https://issues.apache.org/jira/browse/HBASE-14048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14621013#comment-14621013
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Andrew Purtell commented on HBASE-14048:
----------------------------------------
I changed the issue summary accordingly.
> 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
>
>
> 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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