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https://issues.apache.org/jira/browse/HADOOP-12191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14969758#comment-14969758
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Jason Lowe commented on HADOOP-12191:
-------------------------------------
Thanks for the comments, Samer! Since this is already resolved and does fix
the stated problem it would be better to file a separate improvement JIRA with
these suggestions rather than try to address them here.
> Bzip2Factory is not thread safe
> -------------------------------
>
> Key: HADOOP-12191
> URL: https://issues.apache.org/jira/browse/HADOOP-12191
> Project: Hadoop Common
> Issue Type: Bug
> Components: io
> Affects Versions: 2.7.1
> Reporter: Jason Lowe
> Assignee: Brahma Reddy Battula
> Fix For: 2.7.2
>
> Attachments: HADOOP-12191.patch
>
>
> Bzip2Factory.isNativeBzip2Loaded is not protected from multiple threads
> calling it simultaneously. A thread can return false from this method
> despite logging the fact that was going to return true due to manipulations
> of the static boolean from another thread calling the same method.
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