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https://issues.apache.org/jira/browse/ZOOKEEPER-1029?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13445463#comment-13445463
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Richard Dermer commented on ZOOKEEPER-1029:
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zoo_multi and zoo_amulti crash for the same reason. Made some local fixes here.
> C client bug in zookeeper_init (if bad hostname is given)
> ---------------------------------------------------------
>
> Key: ZOOKEEPER-1029
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1029
> Project: ZooKeeper
> Issue Type: Bug
> Components: c client
> Affects Versions: 3.3.2
> Reporter: Dheeraj Agrawal
>
> If you give invalid hostname to zookeeper_init method, it's not able to
> resolve it, and it tries to do the cleanup (free buffer/completion lists/etc)
> . The adaptor_init() is not called for this code path, so the lock,cond
> variables (for adaptor, completion lists) are not initialized.
> As part of the cleanup it's trying to clean up some buffers and acquires
> locks and unlocks (where the locks have not yet been initialized, so
> unlocking fails)
> lock_completion_list(&zh->sent_requests); - pthread_mutex/cond not
> initialized
> tmp_list = zh->sent_requests;
> zh->sent_requests.head = 0;
> zh->sent_requests.last = 0;
> unlock_completion_list(&zh->sent_requests); trying to broadcast here
> on uninitialized cond
> It should do error checking to see if locking succeeds before unlocking it.
> If Locking fails, then appropriate error handling has to be done.
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