[HBASE-3666] TestScannerTimeout fails occasionally

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.90.1
• Fix Version/s: 0.90.2
• Hadoop Flags: Reviewed
• Assignee: Todd Lipcon
• Reporter: Todd Lipcon
• Created: 17/Mar/11 20:18
• Updated: 20/Nov/15 12:41
• Resolved: 24/Mar/11 20:40

Description

LeaseExceptionIf I loop TestScannerTimeout, it eventually fails with:

org.apache.hadoop.hbase.regionserver.LeaseException: org.apache.hadoop.hbase.regionserver.LeaseException: lease '-4526340287831625207' does not exist
at org.apache.hadoop.hbase.regionserver.Leases.cancelLease(Leases.java:209)
at org.apache.hadoop.hbase.regionserver.HRegionServer.next(HRegionServer.java:1816)
...
at org.apache.hadoop.hbase.client.ScannerCallable.call(ScannerCallable.java:83)
at org.apache.hadoop.hbase.client.ScannerCallable.call(ScannerCallable.java:38)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getRegionServerWithRetries(HConnectionManager.java:1003)
at org.apache.hadoop.hbase.client.HTable$ClientScanner.next(HTable.java:1103)
at org.apache.hadoop.hbase.client.HTable$ClientScanner.next(HTable.java:1175)
at org.apache.hadoop.hbase.client.TestScannerTimeout.test2772(TestScannerTimeout.java:133)

I think the issue is a race where at the top of the function, the scanner does exist, but by the time it gets to cancelLease, it has timed out.