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From jiny2 <...@git.apache.org>
Subject [GitHub] incubator-hawq pull request: HAWQ-362. Master RM should Recalculat...
Date Sun, 24 Jan 2016 10:52:52 GMT
Github user jiny2 commented on a diff in the pull request:

    https://github.com/apache/incubator-hawq/pull/291#discussion_r50633726
  
    --- Diff: src/backend/resourcemanager/resourcepool.c ---
    @@ -893,6 +893,28 @@ int addHAWQSegWithSegStat(SegStat segstat, bool *capstatchanged)
     	else {
     		segresource = getSegResource(segid);
     		Assert(segresource != NULL);
    +		uint8_t oldStatus = segresource->Stat->FTSAvailable;
    +		bool statusChanged = oldStatus != segstat->FTSAvailable;
    +
    +		/* Check if RM process is restarted in this segment */
    +		if (segresource->Stat->RMStartTimestamp != segstat->RMStartTimestamp)
    +		{
    +			/*
    +			 * This segment's RM process has restarted,
    +			 * we should clean up old status, so mark it down.
    +			 */
    +			if (oldStatus == RESOURCE_SEG_STATUS_AVAILABLE && !statusChanged)
    +			{
    +				segstat->FTSAvailable = RESOURCE_SEG_STATUS_UNAVAILABLE;
    +				statusChanged = true;
    +			}
    +			segresource->Stat->RMStartTimestamp = segstat->RMStartTimestamp;
    +			elog(LOG, "Master RM finds segment:%s 's RM process has restarted. "
    --- End diff --
    
    Suggest to report as a WARNING log.


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