Sudheesh Katkam created DRILL-5217:
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Summary: 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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