[
https://issues.apache.org/jira/browse/HDFS-10409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15573267#comment-15573267
]
Xiaowei Zhu commented on HDFS-10409:
------------------------------------
+1 on 001.patch. Adding MEMCHECKED_CLASS can be helpful.
> libhdfs++: Something is holding connection_state_lock in RpcConnectionImpl
> destructor
> -------------------------------------------------------------------------------------
>
> Key: HDFS-10409
> URL: https://issues.apache.org/jira/browse/HDFS-10409
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: James Clampffer
> Assignee: James Clampffer
> Attachments: HDFS-10409.HDFS-8707.000.patch,
> HDFS-10409.HDFS-8707.001.patch, locked_dtor.patch
>
>
> The destructor to RpcConnectionImpl grabs a lock using a std::lock_guard<>.
> It turns out something is already holding the lock when this happens. Best
> bet is something that looks like:
> {code}
> void SomeFunctionThatShouldntTakeLock(){
> std::lock_guard<std::mutex> bad(connection_state_lock_)
> conn_.reset(); //conn is a shared_ptr to RpcConnectionImpl
> }
> {code}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
