[jira] [Commented] (DRILL-5217) Heartbeat Fails when C++ client receives a large ResultSet

["Laurent Goujon (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-5217?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15836762#comment-15836762 ] 

Laurent Goujon commented on DRILL-5217:
---------------------------------------

Are you suggesting to offset the notification to the client to a different threadpool (or ioservice)?

> Heartbeat Fails when C++ client receives a large ResultSet
> ----------------------------------------------------------
>
>                 Key: DRILL-5217
>                 URL: https://issues.apache.org/jira/browse/DRILL-5217
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Client - C++
>            Reporter: Sudheesh Katkam
>            Priority: Critical
>
> If the listener thread is occupied for longer than 15 seconds (heartbeat timeout) while [handling a message from the drillbit|https://github.com/apache/drill/blob/master/contrib/native/client/src/clientlib/drillClientImpl.cpp#L1286] e.g. [processing query data blocks if the query result listener's buffer is full|https://github.com/apache/drill/blob/master/contrib/native/client/src/clientlib/drillClientImpl.cpp#L899], heartbeats fail because the same thread is responsible for sending heartbeats!
> Fix is to [handle long running operations|http://stackoverflow.com/questions/17648725/long-running-blocking-operations-in-boost-asio-handlers] separately using boost asio.



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