mcvsubbu commented on a change in pull request #6778:
URL: https://github.com/apache/incubator-pinot/pull/6778#discussion_r645784464
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File path:
pinot-controller/src/main/java/org/apache/pinot/controller/validation/RealtimeSegmentValidationManager.java
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@@ -67,6 +67,22 @@ public RealtimeSegmentValidationManager(ControllerConf
config, PinotHelixResourc
Preconditions.checkState(_segmentLevelValidationIntervalInSeconds > 0);
}
+ @Override
+ protected void setUpTask() {
+ // Prefetch the LLC segment without segment store copy from ZK, which
helps to alleviate ZK access.
Review comment:
Yes, all helix transitions happen asynchronously.
The controllers will get state transitions -- one for each partition of the
`leadControllerResource`, and based on that can decide whether a certain table
is to be processed on that controller or not.
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