joshelser commented on a change in pull request #874:
URL: https://github.com/apache/phoenix/pull/874#discussion_r485821321
##########
File path:
phoenix-core/src/main/java/org/apache/phoenix/coprocessor/UngroupedAggregateRegionObserver.java
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@@ -1430,4 +1430,17 @@ public InternalScanner run() throws Exception {
}
return s;
}
+
+ /**
+ * roll back after split failed, will isRegionClosingOrSplitting set false,
+ * and then write region will is available
+ * @param ctx
+ * @throws IOException
+ */
+ @Override
+ public void preRollBackSplit(ObserverContext<RegionCoprocessorEnvironment>
ctx) throws IOException {
Review comment:
Do you want `preRollBackSplit` and not `postRollBackSplit`? If we're
only about to rollback a split, I would say that, semantically, the region is
still splitting until that operation is complete. postRollBackSplit seems more
correct to me.
Also want to note: this method is only relevant for HBase 1.x.
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