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https://issues.apache.org/jira/browse/HADOOP-9212?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tom White updated HADOOP-9212:
------------------------------
Attachment: HADOOP-9212.patch
Here's a fix to break the cycle by using the Java File API in
Credentials.readTokenStorageFile (overloading the method to take File) so the
FileSystem.Cache lock need not be taken.
> Potential deadlock in FileSystem.Cache/IPC/UGI
> ----------------------------------------------
>
> Key: HADOOP-9212
> URL: https://issues.apache.org/jira/browse/HADOOP-9212
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 2.0.2-alpha
> Reporter: Tom White
> Assignee: Tom White
> Attachments: 1_jcarder_result_0.png, HADOOP-9212.patch
>
>
> jcarder found a cycle which could lead to a potential deadlock.
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