[HBASE-25371] When openRegion fails during initial verification(before initializing and setting seq num), exception is observed during region close.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2.3
• Fix Version/s: 3.0.0-alpha-1, 2.2.7, 2.5.0, 2.3.5, 2.4.2
• Component/s: Region Assignment
• Hadoop Flags: Reviewed
• Assignee: Mohammad Arshad
• Reporter: Ajeet Rai
• Created: 08/Dec/20 05:29
• Updated: 04/Mar/21 01:25
• Resolved: 03/Mar/21 00:36

Description

When openRegion fails during initial verification(before initializing and setting seq num), exception is observed during region close:

 

2020-12-03 16:34:47,133 ERROR [RS_OPEN_REGION-regionserver/AAAAAAAAAA:16040-0] handler.OpenRegionHandler: Failed open of region=ns2:testtable4,00000000000000000000150000,1606912406234.cd386135276b7d3c57416df3666e4aea.2020-12-03 16:34:47,133 ERROR [RS_OPEN_REGION-regionserver/blrphispra01054:16040-0] handler.OpenRegionHandler: Failed open of region=ns2:testtable4,00000000000000000000150000,1606912406234.cd386135276b7d3c57416df3666e4aea.java.io.IOException: The new max sequence id 1 is less than the old max sequence id 7134 at org.apache.hadoop.hbase.wal.WALSplitUtil.writeRegionSequenceIdFile(WALSplitUtil.java:418) at org.apache.hadoop.hbase.regionserver.HRegion.writeRegionCloseMarker(HRegion.java:1253) at org.apache.hadoop.hbase.regionserver.HRegion.doClose(HRegion.java:1793) at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:1606) at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:1552) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:7522) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:7467) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:7439) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:7397) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:7348) at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.openRegion(OpenRegionHandler.java:286) at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.process(OpenRegionHandler.java:111) at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:104) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)

 

Issue Links

• links to: GitHub Pull Request #2785
• links to: GitHub Pull Request #2950