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Posted to common-issues@hadoop.apache.org by "Brian Loss (JIRA)" <ji...@apache.org> on 2016/08/25 16:18:21 UTC
[jira] [Resolved] (HADOOP-10934) AbstractCounters.readFields
doesn't clear "other" groups
[ https://issues.apache.org/jira/browse/HADOOP-10934?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Brian Loss resolved HADOOP-10934.
---------------------------------
Resolution: Duplicate
It appears that MAPREDUCE-6199 fixes took care of this issue.
> AbstractCounters.readFields doesn't clear "other" groups
> --------------------------------------------------------
>
> Key: HADOOP-10934
> URL: https://issues.apache.org/jira/browse/HADOOP-10934
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.2.0, 2.3.0, 2.4.0, 2.4.1
> Reporter: Brian Loss
>
> The readFields method of AbstractCounters clears the "framework and fs groups" map {{fgroups}}, but does not clear the "other groups" map {{groups}}. If a Counters object is used as the key or value record reader, it will aggregate groups over all records rather than just returning the counters for the current record. In all likelihood, in addition to providing incorrect data, the counter limit will also be exceeded as it is checked each time through readFields.
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