[HDDS-4225] NPE while installing snapshots on ozone manager

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: Ozone Manager
• Labels: MiniOzoneChaosCluster
• Assignee: Unassigned
• Reporter: Mukul Kumar Singh
• Created: 09/Sep/20 17:26
• Updated: 22/Nov/22 21:31

Description

2020-09-09 22:07:14,830 [pool-144-thread-1] INFO  om.OzoneManager (OzoneManager.java:installCheckpoint(3159)) - Installing checkpoint with OMTransactionInfo 2#68754
2020-09-09 22:07:14,831 [grpc-default-executor-50] INFO  impl.RaftServerImpl (RaftServerImpl.java:installSnapshot(1127)) - omNode-2@group-D62218D261DE: reply installSnapshot: omNode-1<-omNode-2#0:FAIL-t2,IN
_PROGRESS
2020-09-09 22:07:14,831 [grpc-default-executor-49] INFO  impl.RaftServerImpl (RaftServerImpl.java:installSnapshot(1117)) - omNode-2@group-D62218D261DE: receive installSnapshot: omNode-1->omNode-2#0-t2,notif
y:(t:2, i:68440)
2020-09-09 22:07:14,836 [grpc-default-executor-49] INFO  impl.RaftServerImpl (RaftServerImpl.java:notifyStateMachineToInstallSnapshot(1282)) - omNode-2@group-D62218D261DE: Snapshot Installation by StateMach
ine is in progress.
2020-09-09 22:07:14,836 [grpc-default-executor-49] INFO  impl.RaftServerImpl (RaftServerImpl.java:installSnapshot(1127)) - omNode-2@group-D62218D261DE: reply installSnapshot: omNode-1<-omNode-2#0:FAIL-t2,IN
_PROGRESS
2020-09-09 22:07:14,832 [grpc-default-executor-53] INFO  server.GrpcLogAppender (GrpcLogAppender.java:onNext(375)) - omNode-1@group-D62218D261DE->omNode-2-InstallSnapshotResponseHandler: received a reply om
Node-1<-omNode-2#0:FAIL-t2,IN_PROGRESS
2020-09-09 22:07:14,831 [grpc-default-executor-50] INFO  server.GrpcServerProtocolService (GrpcServerProtocolService.java:onCompleted(138)) - omNode-2: Completed INSTALL_SNAPSHOT, lastRequest: omNode-1->omN
ode-2#0-t2,notify:(t:2, i:68440)
2020-09-09 22:07:14,831 [pool-144-thread-1] ERROR om.OzoneManager (OzoneManager.java:installSnapshotFromLeader(3141)) - Failed to install snapshot from Leader OM: {}
java.lang.NullPointerException
        at org.apache.hadoop.ozone.om.OzoneManager.installCheckpoint(OzoneManager.java:3168)
        at org.apache.hadoop.ozone.om.OzoneManager.installCheckpoint(OzoneManager.java:3162)
        at org.apache.hadoop.ozone.om.OzoneManager.installSnapshotFromLeader(OzoneManager.java:3139)
        at org.apache.hadoop.ozone.om.ratis.OzoneManagerStateMachine.lambda$notifyInstallSnapshotFromLeader$4(OzoneManagerStateMachine.java:372)
        at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590)
        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

• is related to: HDDS-4226 Cleanup OM snapshots left after a failed installSnapshot