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https://issues.apache.org/jira/browse/MAPREDUCE-3469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Konstantin Shvachko resolved MAPREDUCE-3469.
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Resolution: Duplicate
> Port to 0.22 - Implement limits on per-job JobConf, Counters, StatusReport,
> Split-Sizes
> ---------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-3469
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3469
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Reporter: Mahadev konar
> Assignee: Konstantin Shvachko
> Labels: critical-0.22.0
>
> We have come across issues in production clusters wherein users abuse
> counters, statusreport messages and split sizes. One such case was when one
> of the users had 100 million counters. This leads to jobtracker going out of
> memory and being unresponsive. In this jira I am proposing to put sane limits
> on the status report length, the number of counters and the size of block
> locations returned by the input split.
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