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https://issues.apache.org/jira/browse/MAPREDUCE-3596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siddharth Seth updated MAPREDUCE-3596:
--------------------------------------
Attachment: logs.tar.bz2
Attached some parts of the AM and RM logs.
am1/rm1 - first 2 map failures
am2/rm2 - 3rd map failure
am3/rm3 - last bit before the job was killed.
The first failed map was retried successfully. The remaining 2 never got
containers allocated.
Looks like this may be an issue on the RM (RM logs aren't very useful though -
since DEBUG logging wasn't enabled). The AM side table looks ok. After the
second failed map - 1 container requested with priority=5 (never allocated)
{noformat}
2011-12-16 07:09:15,871 INFO [AsyncDispatcher event handler]
org.apache.hadoop.mapreduce.v2.app.rm.RMContainerRequestor: addResourceRequest:
applicationId=2 priority=5 resourceName=* numContainers=1 #asks=1
{noformat}
After the third failed map - 2 container requests with priority=5 (never
allocated)
{noformat}
2011-12-16 07:26:07,641 INFO [AsyncDispatcher event handler]
org.apache.hadoop.mapreduce.v2.app.rm.RMContainerRequestor: addResourceRequest:
applicationId=2 priority=5 resourceName=* numContainers=2 #asks=1
{noformat}
Towards the end, all reduce tasks are around 0.3328 complete, pendingMaps stays
at 2.
> Sort benchmark got hang after completion of 99% map phase
> ---------------------------------------------------------
>
> Key: MAPREDUCE-3596
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3596
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: applicationmaster, mrv2
> Affects Versions: 0.23.0
> Reporter: Ravi Prakash
> Priority: Critical
> Attachments: logs.tar.bz2
>
>
> Courtesy [~vinaythota]
> {quote}
> Ran sort benchmark couple of times and every time the job got hang after
> completion 99% map phase. There are some map tasks failed. Also it's not
> scheduled some of the pending map tasks.
> Cluster size is 350 nodes.
> Build Details:
> ==============
> Compiled: Fri Dec 9 16:25:27 PST 2011 by someone from
> branches/branch-0.23/hadoop-common-project/hadoop-common
> ResourceManager version: revision 1212681 by someone source checksum
> on Fri Dec 9 16:52:07 PST 2011
> Hadoop version: revision 1212592 by someone Fri Dec 9 16:25:27 PST
> 2011
> {quote}
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