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https://issues.apache.org/jira/browse/FLUME-2420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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chenshangan updated FLUME-2420:
-------------------------------

    Attachment: FLUME-2420.patch

> HDFSEventSink#stop might throw ConcurrentModificationException
> --------------------------------------------------------------
>
>                 Key: FLUME-2420
>                 URL: https://issues.apache.org/jira/browse/FLUME-2420
>             Project: Flume
>          Issue Type: Bug
>          Components: Sinks+Sources
>    Affects Versions: v1.5.0
>            Reporter: chenshangan
>            Assignee: chenshangan
>         Attachments: FLUME-2420.patch
>
>
> There's a chance that bucketWriter callback and HDFSEventSink#stop operate on 
> sfWriter together. So synchronized should apply before operation on sfWriter.



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