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https://issues.apache.org/jira/browse/DRILL-2574?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Westin updated DRILL-2574:
--------------------------------
    Assignee: Jacques Nadeau  (was: Chris Westin)

> SendingAccountor can suffer from lost updates
> ---------------------------------------------
>
>                 Key: DRILL-2574
>                 URL: https://issues.apache.org/jira/browse/DRILL-2574
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Execution - RPC
>    Affects Versions: 0.7.0
>            Reporter: Chris Westin
>            Assignee: Jacques Nadeau
>             Fix For: 0.8.0
>
>         Attachments: DRILL-2574.1.patch.txt
>
>
> In SendingAccountor.waitForSendToComplete():
> {code}
> public synchronized void waitForSendComplete() {
>   try {
>     wait.acquire(batchesSent.get());
>     batchesSent.set(0);
>   } catch (InterruptedException e) {
>     logger.warn("Failure while waiting for send complete.", e);
>     // TODO InterruptedException
>   }
> }
> {code}
> It's possible that between the time batchesSent.get() returns and that 
> batchesSent.set(0) are executed, that additional batches could have been 
> sent. If that happens, then the set(0) overwrites the count, losing those. 
> This needs to be better protected against that.



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