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https://issues.apache.org/jira/browse/MAPREDUCE-6528?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Junping Du updated MAPREDUCE-6528:
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Fix Version/s: 2.8.0
> Memory leak for HistoryFileManager.getJobSummary()
> --------------------------------------------------
>
> Key: MAPREDUCE-6528
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6528
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobhistoryserver
> Reporter: Junping Du
> Assignee: Junping Du
> Priority: Critical
> Fix For: 2.8.0, 2.7.2, 2.6.3, 3.0.0-alpha1
>
> Attachments: MAPREDUCE-6528.patch
>
>
> We meet memory leak issues for JHS in a large cluster which is caused by code
> below doesn't release FSDataInputStream in exception case. MAPREDUCE-6273
> should fix most cases that exceptions get thrown. However, we still need to
> fix the memory leak for occasional case.
> {code}
> private String getJobSummary(FileContext fc, Path path) throws IOException {
> Path qPath = fc.makeQualified(path);
> FSDataInputStream in = fc.open(qPath);
> String jobSummaryString = in.readUTF();
> in.close();
> return jobSummaryString;
> }
> {code}
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