[HDDS-6649] SCM start failed NullPointerException when meta/db directories changed

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: SCM HA
• Assignee: Unassigned
• Reporter: Nilotpal Nandi
• Created: 26/Apr/22 11:51
• Updated: 26/Apr/22 11:51

Description

steps taken :

1)Modified Datanode ID Directory, Datanode Data Directory

2) Modified Storage Container Manager Data Directory, Storage Container Manager Metadata Directory

3) Modified Ozone Manager Data Directory, Ozone Manager Metadata Directory, Ozone Manager Ratis Storage Directory

4) Modified Datanode Ratis Metadata Directory, Datanode Metadata Directory

5) restarted Ozone

2022-04-26 11:04:47,813 ERROR org.apache.ratis.statemachine.StateMachine: Terminating with exit status 1: null
java.lang.NullPointerException
        at org.apache.hadoop.hdds.scm.ha.SCMStateMachine.process(SCMStateMachine.java:159)
        at org.apache.hadoop.hdds.scm.ha.SCMStateMachine.applyTransaction(SCMStateMachine.java:139)
        at org.apache.ratis.server.impl.RaftServerImpl.applyLogToStateMachine(RaftServerImpl.java:1723)
        at org.apache.ratis.server.impl.StateMachineUpdater.applyLog(StateMachineUpdater.java:234)
        at org.apache.ratis.server.impl.StateMachineUpdater.run(StateMachineUpdater.java:179)
        at java.base/java.lang.Thread.run(Thread.java:834)
2022-04-26 11:04:47,822 INFO org.apache.hadoop.hdds.scm.server.StorageContainerManagerStarter: SHUTDOWN_MSG:
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