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https://issues.apache.org/jira/browse/HADOOP-13500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Akira Ajisaka resolved HADOOP-13500.
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Fix Version/s: 2.10.2
Resolution: Fixed
Merged PR 3776 into branch-2.10.
> Synchronizing iteration of Configuration properties object
> ----------------------------------------------------------
>
> Key: HADOOP-13500
> URL: https://issues.apache.org/jira/browse/HADOOP-13500
> Project: Hadoop Common
> Issue Type: Bug
> Components: conf
> Reporter: Jason Darrell Lowe
> Assignee: Dhananjay Badaya
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0, 2.10.2, 3.2.4, 3.3.3
>
> Time Spent: 2h 10m
> Remaining Estimate: 0h
>
> It is possible to encounter a ConcurrentModificationException while trying to
> iterate a Configuration object. The iterator method tries to walk the
> underlying Property object without proper synchronization, so another thread
> simultaneously calling the set method can trigger it.
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