saintstack commented on a change in pull request #556: HBASE-22941 merge
operation returns parent regions in random order
URL: https://github.com/apache/hbase/pull/556#discussion_r318818139
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File path:
hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/RegionStateStore.java
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@@ -263,7 +263,7 @@ public void mergeRegions(RegionInfo child, RegionInfo []
parents, ServerName ser
throws IOException {
TableDescriptor htd = getDescriptor(child.getTable());
boolean globalScope = htd.hasGlobalReplicationScope();
- Map<RegionInfo, Long> parentSeqNums = new HashMap<>(parents.length);
+ Map<RegionInfo, Long> parentSeqNums = new TreeMap<>();
Review comment:
Better
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