ankitsultana commented on code in PR #10166:
URL: https://github.com/apache/pinot/pull/10166#discussion_r1088837635
##########
pinot-query-planner/src/main/java/org/apache/pinot/query/routing/WorkerManager.java:
##########
@@ -97,7 +98,7 @@ public void assignWorkerToStage(int stageId, StageMetadata
stageMetadata, long r
stageMetadata.setServerInstances(new ArrayList<>(
serverInstanceToSegmentsMap.keySet()
.stream()
- .map(server -> new VirtualServer(server, 0)) // for now, only
use single virtual server
+ .map(server -> new VirtualServer(server, 0)) // the leaf stage
only has one server, so always use 0 here
Review Comment:
It would be needed for doing colocated joins with parallelism.
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