[jira] [Created] (HBASE-28241) The snapshot operation encountered an NPE and failed.

["Haiping lv (Jira)" <ji...@apache.org>]

Haiping lv created HBASE-28241:
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             Summary: The snapshot operation encountered an NPE and failed.
                 Key: HBASE-28241
                 URL: https://issues.apache.org/jira/browse/HBASE-28241
             Project: HBase
          Issue Type: Bug
    Affects Versions: 3.0.0-beta-1
            Reporter: Haiping lv


Executing a merge region before the snapshot operation is completed will result in an NPE error for the snapshot operation and cause it to fail

Triggering logic
 # Execute the snapshot command.
 # Merge regions before the snapshot is completed.
 # After the merge is completed, the two parent regions will be cleaned up.
 # An NPE will be reported when the snapshot operation is performed on that parent region. The log is as follow:

{code:java}
2023-11-20T23:26:07,061 ERROR [PEWorker-13] procedure2.ProcedureExecutor: CODE-BUG: Uncaught runtime exception: pid=238720, ppid=238714, state=RUNNABLE, hasLock=true; SnapshotRegionProcedure c47539f1d6032ba1a037f5279c22baa0
java.lang.NullPointerException: null
        at org.apache.hadoop.hbase.master.procedure.SnapshotRegionProcedure.execute(SnapshotRegionProcedure.java:160) ~[hbase-server-3.0.0-beta-1-SNAPSHOT.jar:3.0.0-beta-1-SNAPSHOT]
        at org.apache.hadoop.hbase.master.procedure.SnapshotRegionProcedure.execute(SnapshotRegionProcedure.java:58) ~[hbase-server-3.0.0-beta-1-SNAPSHOT.jar:3.0.0-beta-1-SNAPSHOT]
        at org.apache.hadoop.hbase.procedure2.Procedure.doExecute(Procedure.java:921) ~[hbase-procedure-3.0.0-beta-1-SNAPSHOT.jar:3.0.0-beta-1-SNAPSHOT]
        at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execProcedure(ProcedureExecutor.java:1649) ~[hbase-procedure-3.0.0-beta-1-SNAPSHOT.jar:3.0.0-beta-1-SNAPSHOT]
        at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.executeProcedure(ProcedureExecutor.java:1395) ~[hbase-procedure-3.0.0-beta-1-SNAPSHOT.jar:3.0.0-beta-1-SNAPSHOT]
        at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.access$1000(ProcedureExecutor.java:75) ~[hbase-procedure-3.0.0-beta-1-SNAPSHOT.jar:3.0.0-beta-1-SNAPSHOT]
        at org.apache.hadoop.hbase.procedure2.ProcedureExecutor$WorkerThread.runProcedure(ProcedureExecutor.java:1961) ~[hbase-procedure-3.0.0-beta-1-SNAPSHOT.jar:3.0.0-beta-1-SNAPSHOT]
        at org.apache.hadoop.hbase.trace.TraceUtil.trace(TraceUtil.java:216) ~[hbase-common-3.0.0-beta-1-SNAPSHOT.jar:3.0.0-beta-1-SNAPSHOT]
        at org.apache.hadoop.hbase.procedure2.ProcedureExecutor$WorkerThread.run(ProcedureExecutor.java:1988) ~[hbase-procedure-3.0.0-beta-1-SNAPSHOT.jar:3.0.0-beta-1-SNAPSHOT] {code}



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