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https://issues.apache.org/jira/browse/HDFS-13745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16548142#comment-16548142
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genericqa commented on HDFS-13745:
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|| Subsystem || Report/Notes ||
| JIRA Issue | HDFS-13745 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12932102/HDFS-13745.000.patch |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/24609/console |
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This message was automatically generated.
> libhdfs++: Fix race in FileSystem destructor
> --------------------------------------------
>
> Key: HDFS-13745
> URL: https://issues.apache.org/jira/browse/HDFS-13745
> Project: Hadoop HDFS
> Issue Type: Task
> Components: native
> Reporter: James Clampffer
> Assignee: James Clampffer
> Priority: Major
> Attachments: HDFS-13745.000.patch
>
>
> Whatever happens to have the last shared_ptr to the IoService will run
> ~IoService when the shared_ptr goes out of scope. IoService's destructor is
> responsible for joining all worker threads in the pool. Most callbacks now
> own weak_ptr<IoService> that can be promoted to a shared_ptr in order to post
> new async tasks. If a callback object is the last thing holding the
> IoService shared_ptr it's going to try to join the thread pool inside of one
> of the thread pool's threads.
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