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https://issues.apache.org/jira/browse/HDFS-5267?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Junping Du updated HDFS-5267:
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Summary: Modification field in LightWeightHashSet and LightWeightLinkedSet
should't be volatile which cause wrong expectation on thread-safe visibility
(was: Modification field in LightWeightHashSet and LightWeightLinkedSet
should't be volatile to get rid of wrong expectation on thread-safe visibility)
> Modification field in LightWeightHashSet and LightWeightLinkedSet should't be
> volatile which cause wrong expectation on thread-safe visibility
> ----------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-5267
> URL: https://issues.apache.org/jira/browse/HDFS-5267
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Junping Du
> Assignee: Junping Du
> Fix For: 2.3.0
>
> Attachments: HADOOP-9980.patch
>
>
> LightWeightGSet should have a volatile modification field (like:
> LightWeightHashSet or LightWeightLinkedSet) that is used to detect updates
> while iterating so they can throw a ConcurrentModificationException.
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