kangkaisen commented on a change in pull request #5133:
URL: https://github.com/apache/incubator-doris/pull/5133#discussion_r551293191
##########
File path: fe/fe-core/src/main/java/org/apache/doris/qe/Coordinator.java
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@@ -1560,14 +1560,20 @@ private void
getExecHostPortForFragmentIDAndBucketSeq(TScanRangeLocations seqLoc
break;
}
}
-
- buckendIdToBucketCountMap.put(buckendId,
buckendIdToBucketCountMap.get(buckendId) + 1);
Reference<Long> backendIdRef = new Reference<Long>();
TNetworkAddress execHostPort = SimpleScheduler.getHost(buckendId,
seqLocation.locations, idToBackend, backendIdRef);
if (execHostPort == null) {
throw new UserException("there is no scanNode Backend");
}
-
+ if (backendIdRef.getRef() != buckendId) {
Review comment:
This logic isn't very simple. would better add comments here for each
if-else branch meaning
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