sunhelly commented on a change in pull request #2889:
URL: https://github.com/apache/hbase/pull/2889#discussion_r562378846
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File path:
hbase-server/src/main/java/org/apache/hadoop/hbase/master/ServerManager.java
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@@ -921,8 +921,10 @@ public boolean isClusterShutdown() {
public void startChore() {
Configuration c = master.getConfiguration();
if (persistFlushedSequenceId) {
- // when reach here, RegionStates should loaded, firstly, we call remove
deleted regions
- removeDeletedRegionFromLoadedFlushedSequenceIds();
+ new Thread(() -> {
+ // when reach here, RegionStates should loaded, firstly, we call
remove deleted regions
+ removeDeletedRegionFromLoadedFlushedSequenceIds();
+ }, "RemoveDeletedRegionSyncThread").start();
Review comment:
The complexity of removeDeletedRegionFromLoadedFlushedSequenceIds is
O(n) when there are n regions. Why it takes a long time?
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