Github user JamesRTaylor commented on a diff in the pull request:
https://github.com/apache/phoenix/pull/156#discussion_r58482075
--- Diff:
phoenix-core/src/main/java/org/apache/phoenix/coprocessor/GroupedAggregateRegionObserver.java
---
@@ -402,8 +405,8 @@ private RegionScanner
scanUnordered(ObserverContext<RegionCoprocessorEnvironment
}
Region region = c.getEnvironment().getRegion();
- region.startRegionOperation();
try {
+ region.startRegionOperation();
--- End diff --
Doesn't startRegionOperation() take a lock which would prevent a split from
occurring and thus a NotServingRegionException from happening? Or is this the
case where the split occurred after pre open, but before we start iterating?
Let's doc that please.
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