[HBASE-13627] Terminating RS results in redundant CLOSE RPC

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 1.1.0
• Component/s: master
• Labels: beginner
• Assignee: Unassigned
• Reporter: Nick Dimiduk
• Created: 06/May/15 00:25
• Updated: 24/Jun/22 18:45
• Resolved: 01/May/16 18:59

Description

Noticed while testing the 1.1.0RC0 bits. It seems we're issuing a redundant close RPC during shutdown. This results in a logging warning for each region.

2015-05-06 00:07:19,214 INFO  [RS:0;ndimiduk-apache-1-1-dist-6:56371] regionserver.HRegionServer: Received CLOSE for the region: 19cbe4fe2fe5335e7aace05e10e36ede, which we are already trying to CLOSE, but not completed yet
2015-05-06 00:07:19,214 WARN  [RS:0;ndimiduk-apache-1-1-dist-6:56371] regionserver.HRegionServer: Failed to close cluster_test,66666666,1430869443384.19cbe4fe2fe5335e7aace05e10e36ede. - ignoring and continuing
org.apache.hadoop.hbase.regionserver.RegionAlreadyInTransitionException: The region 19cbe4fe2fe5335e7aace05e10e36ede was already closing. New CLOSE request is ignored.
	at org.apache.hadoop.hbase.regionserver.HRegionServer.closeRegion(HRegionServer.java:2769)
	at org.apache.hadoop.hbase.regionserver.HRegionServer.closeRegionIgnoreErrors(HRegionServer.java:2695)
	at org.apache.hadoop.hbase.regionserver.HRegionServer.closeUserRegions(HRegionServer.java:2327)
	at org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:937)
	at java.lang.Thread.run(Thread.java:745)

1. launch a standalone cluster from tgz (./bin/start-hbase.sh)
2. load some data (ie, run bin/hbase ltt)
3. terminate cluster (./bin/stop-hbase.sh)