Github user laurentgo commented on a diff in the pull request: https://github.com/apache/drill/pull/726#discussion_r97665284 --- Diff: contrib/native/client/src/clientlib/drillClientImpl.cpp --- @@ -179,9 +179,11 @@ connectionStatus_t DrillClientImpl::sendHeartbeat(){ } void DrillClientImpl::resetHeartbeatTimer(){ - m_heartbeatTimer.cancel(); - DRILL_MT_LOG(DRILL_LOG(LOG_TRACE) << "Reset Heartbeat timer." << std::endl;) - startHeartbeatTimer(); + if (DrillClientConfig::getHeartbeatFrequency() > 0) { + m_heartbeatTimer.cancel(); --- End diff -- I was wondering if one needs to cancel the timer, as startHearbeatTimer sets it again to expire. Maybe all this logic can be done in one place (like startHeartbeatTimer?) I also noticed another place where m_heartbeatTime.cancel() is called, in broadcastError. I guess this is fine (probably not an error of calling cancel() if not set, but haven't checked asio doc on it), but maybe this should be cleaned up/guarded too...
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