jiajunwang commented on a change in pull request #941: Fix unexpceted partition
movements in the CrushEd strategy.
URL: https://github.com/apache/helix/pull/941#discussion_r406962734
##########
File path:
helix-core/src/main/java/org/apache/helix/controller/dataproviders/ResourceControllerDataProvider.java
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@@ -294,4 +304,32 @@ public void clearMonitoringRecords() {
_missingTopStateMap.clear();
_lastTopStateLocationMap.clear();
}
+
+ /**
+ * If the list items are the same, return the stable partition list cache.
Otherwise, refresh
+ * the cache with new list and return the new list.
+ * This is for a backward compatible workaround to fix
https://github.com/apache/helix/issues/940.
+ *
+ * @param resourceName
+ * @param newPartitionSet
+ */
+ public List<String> getOrSetStablePartitionList(String resourceName,
Review comment:
Changed with some additional modification to ensure safety.
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