[HBASE-27823] NPE in ClaimReplicationQueuesProcedure when running TestAssignmentManager.testAssignSocketTimeout

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.6.0, 3.0.0-alpha-4, 2.5.5, 2.4.18
• Component/s: test
• Hadoop Flags: Reviewed
• Assignee: Duo Zhang
• Reporter: Duo Zhang
• Created: 03/May/23 12:07
• Updated: 05/May/23 19:51
• Resolved: 04/May/23 14:55

Description

2023-05-03T05:56:10,094 ERROR [PEWorker-18 {}] procedure2.ProcedureExecutor(1669): CODE-BUG: Uncaught runtime exception: pid=8, ppid=5, state=RUNNABLE, hasLock=true; org.apache.hadoop.hbase.master.replication.ClaimReplicationQueuesProcedure
java.lang.NullPointerException: null
at org.apache.hadoop.hbase.master.replication.ClaimReplicationQueuesProcedure.execute(ClaimReplicationQueuesProcedure.java:83) ~[classes/:?]
at org.apache.hadoop.hbase.master.replication.ClaimReplicationQueuesProcedure.execute(ClaimReplicationQueuesProcedure.java:48) ~[classes/:?]
at org.apache.hadoop.hbase.procedure2.Procedure.doExecute(Procedure.java:919) ~[hbase-procedure-3.0.0-alpha-4-SNAPSHOT.jar:3.0.0-alpha-4-SNAPSHOT]
at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execProcedure(ProcedureExecutor.java:1650) ~[hbase-procedure-3.0.0-alpha-4-SNAPSHOT.jar:3.0.0-alpha-4-SNAPSHOT]
at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.executeProcedure(ProcedureExecutor.java:1396) ~[hbase-procedure-3.0.0-alpha-4-SNAPSHOT.jar:3.0.0-alpha-4-SNAPSHOT]
at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.access$1000(ProcedureExecutor.java:75) ~[hbase-procedure-3.0.0-alpha-4-SNAPSHOT.jar:3.0.0-alpha-4-SNAPSHOT]
at org.apache.hadoop.hbase.procedure2.ProcedureExecutor$WorkerThread.runProcedure(ProcedureExecutor.java:1962) ~[hbase-procedure-3.0.0-alpha-4-SNAPSHOT.jar:3.0.0-alpha-4-SNAPSHOT]
at org.apache.hadoop.hbase.trace.TraceUtil.trace(TraceUtil.java:216) ~[hbase-common-3.0.0-alpha-4-SNAPSHOT.jar:3.0.0-alpha-4-SNAPSHOT]
at org.apache.hadoop.hbase.procedure2.ProcedureExecutor$WorkerThread.run(ProcedureExecutor.java:1989) ~[hbase-procedure-3.0.0-alpha-4-SNAPSHOT.jar:3.0.0-alpha-4-SNAPSHOT]

We mock lots of things in this test so not sure this is a test issue or a real issue.

Need to dig more.

This should be a possible reason that why this test is flaky.

Issue Links

• links to: GitHub Pull Request #5216