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https://issues.apache.org/jira/browse/HADOOP-2098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arun C Murthy updated HADOOP-2098:
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Status: Open (was: Patch Available)
We should also check for zero input files in
{{FileInputFormat.validateInput(JobConf)}} and throw an
{{InvalidInputException}} in the first place. Prevention is better than cure...
> File handles for log files are still open in case of jobs with 0 maps
> ---------------------------------------------------------------------
>
> Key: HADOOP-2098
> URL: https://issues.apache.org/jira/browse/HADOOP-2098
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.15.0
> Reporter: Amar Kamat
> Assignee: Amar Kamat
> Fix For: 0.16.0
>
> Attachments: HADOOP-2098.patch
>
>
> When a job with zero maps is submitted the handle for the log file for that
> job is still open and can be seen using {{lsof}}. This over time could lead
> to {{Too many open files Exception}}.
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