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https://issues.apache.org/jira/browse/MAPREDUCE-2444?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer resolved MAPREDUCE-2444.
-----------------------------------------
Resolution: Duplicate
This was essentially resolved with the move to Protobuf for the RPC layer.
> error connect tasktracker for jobtracker
> ----------------------------------------
>
> Key: MAPREDUCE-2444
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2444
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Affects Versions: 0.20.1
> Reporter: Alexey Diomin
> Labels: hadoop
>
> In TaskTracker.java on create connection to JobTracker we check compare build
> version
> if(!VersionInfo.getBuildVersion().equals(jobTrackerBV))
> but
> public static String getBuildVersion(){
> return VersionInfo.getVersion() +
> " from " + VersionInfo.getRevision() +
> " by " + VersionInfo.getUser() +
> " source checksum " + VersionInfo.getSrcChecksum();
> }
> in result identical version/revision/srcChecksum but compiled different users
> incompatible
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