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https://issues.apache.org/jira/browse/HDDS-11033?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17937026#comment-17937026
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Ivan Andika commented on HDDS-11033:
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[~swamirishi] [~sshenoy] Can I check whether this NPE issue has been fixed?
> [snapshot-LR] OM down due to NullPointerException during SnapshotPurgeRequest
> -----------------------------------------------------------------------------
>
> Key: HDDS-11033
> URL: https://issues.apache.org/jira/browse/HDDS-11033
> Project: Apache Ozone
> Issue Type: Bug
> Components: Ozone Manager, Snapshot
> Reporter: Jyotirmoy Sinha
> Priority: Major
> Labels: ozone-snapshot
>
> Steps :
> * Create multiple snapshots across various volume/buckets as background load
> * Perform random snapshot operations such as create, delete, list, diff
> across 4 test buckets of combination -
> *
> ** EC - FSO and OBS
> ** Ratis - FSO and OBS
> * In parallel also perform repetitive reconstructions and re-replications on
> the above buckets
> Error snippet in OM1 -
> {code:java}
> 2024-06-19 16:30:39,580 INFO
> [OMDoubleBufferFlushThread]-org.apache.hadoop.ozone.om.OmSnapshotManager:
> Created checkpoint :
> /var/lib/hadoop-ozone/om/data793412/db.snapshots/checkpointState/om.db-a4f6fa69-cf80-4fea-a3d9-6684faceff89
> for snapshot snap851
> 2024-06-19 16:30:40,764 ERROR [OM StateMachine ApplyTransaction Thread -
> 0]-org.apache.hadoop.ozone.om.ratis.OzoneManagerStateMachine: Terminating
> with exit status 1: Request cmdType: SnapshotPurge
> clientId: "client-DE4DAB584843"
> SnapshotPurgeRequest {
> updatedSnapshotDBKey: "/testvol/buckecfso/snap1718809217"
> }
> failed with exception
> java.lang.NullPointerException
> at
> org.apache.hadoop.ozone.om.request.snapshot.OMSnapshotPurgeRequest.validateAndUpdateCache(OMSnapshotPurgeRequest.java:107)
> at
> org.apache.hadoop.ozone.protocolPB.OzoneManagerRequestHandler.handleWriteRequest(OzoneManagerRequestHandler.java:378)
> at
> org.apache.hadoop.ozone.om.ratis.OzoneManagerStateMachine.runCommand(OzoneManagerStateMachine.java:560)
> at
> org.apache.hadoop.ozone.om.ratis.OzoneManagerStateMachine.lambda$1(OzoneManagerStateMachine.java:353)
> at
> java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1700)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at java.base/java.lang.Thread.run(Thread.java:834) {code}
> Error snippet in OM2 -
> {code:java}
> 2024-06-19 16:30:39,611 INFO
> [OMDoubleBufferFlushThread]-org.apache.hadoop.ozone.om.OmSnapshotManager:
> Created checkpoint :
> /var/lib/hadoop-ozone/om/data793412/db.snapshots/checkpointState/om.db-a4f6fa69-cf80-4fea-a3d9-6684faceff89
> for snapshot snap851
> 2024-06-19 16:30:40,770 ERROR [OM StateMachine ApplyTransaction Thread -
> 0]-org.apache.hadoop.ozone.om.ratis.OzoneManagerStateMachine: Terminating
> with exit status 1: Request cmdType: SnapshotPurge
> clientId: "client-DE4DAB584843"
> SnapshotPurgeRequest {
> updatedSnapshotDBKey: "/testvol/buckecfso/snap1718809217"
> }
> failed with exception
> java.lang.NullPointerException
> at
> org.apache.hadoop.ozone.om.request.snapshot.OMSnapshotPurgeRequest.validateAndUpdateCache(OMSnapshotPurgeRequest.java:107)
> at
> org.apache.hadoop.ozone.protocolPB.OzoneManagerRequestHandler.handleWriteRequest(OzoneManagerRequestHandler.java:378)
> at
> org.apache.hadoop.ozone.om.ratis.OzoneManagerStateMachine.runCommand(OzoneManagerStateMachine.java:560)
> at
> org.apache.hadoop.ozone.om.ratis.OzoneManagerStateMachine.lambda$1(OzoneManagerStateMachine.java:353)
> at
> java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1700)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at java.base/java.lang.Thread.run(Thread.java:834)
> 2024-06-19 16:30:40,777 INFO
> [shutdown-hook-0]-org.apache.ranger.audit.provider.AuditProviderFactory: ==>
> JVMShutdownHook.run() {code}
> Error snippet in OM3 -
> {code:java}
> 2024-06-19 16:30:44,852 ERROR
> [KeyDeletingService#0]-org.apache.hadoop.ozone.om.service.KeyDeletingService:
> Snapshot deep cleaning request failed. Will retry at next run.
> com.google.protobuf.ServiceException:
> org.apache.hadoop.ozone.om.exceptions.OMNotLeaderException: OM:om135 is not
> the leader. Could not determine the leader node.
> at
> org.apache.hadoop.ozone.om.ratis.OzoneManagerRatisServer.processReply(OzoneManagerRatisServer.java:462)
> at
> org.apache.hadoop.ozone.om.ratis.OzoneManagerRatisServer.submitRequest(OzoneManagerRatisServer.java:289)
> at
> org.apache.hadoop.ozone.om.service.KeyDeletingService$KeyDeletingTask.submitRequest(KeyDeletingService.java:392)
> at
> org.apache.hadoop.ozone.om.service.KeyDeletingService$KeyDeletingTask.updateDeepCleanedSnapshots(KeyDeletingService.java:373)
> at
> org.apache.hadoop.ozone.om.service.KeyDeletingService$KeyDeletingTask.processSnapshotDeepClean(KeyDeletingService.java:357)
> at
> org.apache.hadoop.ozone.om.service.KeyDeletingService$KeyDeletingTask.call(KeyDeletingService.java:204)
> at
> org.apache.hadoop.hdds.utils.BackgroundService$PeriodicalTask.lambda$run$0(BackgroundService.java:121)
> at
> java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1736)
> at
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
> at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
> at
> java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at java.base/java.lang.Thread.run(Thread.java:834)
> Caused by: org.apache.hadoop.ozone.om.exceptions.OMNotLeaderException:
> OM:om135 is not the leader. Could not determine the leader node.
> at
> org.apache.hadoop.ozone.om.exceptions.OMNotLeaderException.convertToOMNotLeaderException(OMNotLeaderException.java:86)
> at
> org.apache.hadoop.ozone.om.ratis.OzoneManagerRatisServer.processReply(OzoneManagerRatisServer.java:463)
> ... 13 more
> 2024-06-19 16:30:44,854 ERROR
> [KeyDeletingService#0]-org.apache.hadoop.ozone.om.service.KeyDeletingService:
> Snapshot deep cleaning request failed. Will retry at next run.
> com.google.protobuf.ServiceException:
> org.apache.ratis.protocol.exceptions.ServerNotReadyException:
> om135@group-323117034165 is not in [RUNNING]: current state is CLOSING
> at
> org.apache.hadoop.ozone.om.ratis.OzoneManagerRatisServer.submitRequestToRatis(OzoneManagerRatisServer.java:298)
> at
> org.apache.hadoop.ozone.om.ratis.OzoneManagerRatisServer.submitRequest(OzoneManagerRatisServer.java:288)
> at
> org.apache.hadoop.ozone.om.service.KeyDeletingService$KeyDeletingTask.submitRequest(KeyDeletingService.java:392)
> at
> org.apache.hadoop.ozone.om.service.KeyDeletingService$KeyDeletingTask.updateDeepCleanedSnapshots(KeyDeletingService.java:373)
> at
> org.apache.hadoop.ozone.om.service.KeyDeletingService$KeyDeletingTask.processSnapshotDeepClean(KeyDeletingService.java:357)
> at
> org.apache.hadoop.ozone.om.service.KeyDeletingService$KeyDeletingTask.call(KeyDeletingService.java:204)
> at
> org.apache.hadoop.hdds.utils.BackgroundService$PeriodicalTask.lambda$run$0(BackgroundService.java:121)
> at
> java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1736)
> at
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
> at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
> at
> java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at java.base/java.lang.Thread.run(Thread.java:834)
> Caused by: java.util.concurrent.ExecutionException:
> org.apache.ratis.protocol.exceptions.ServerNotReadyException:
> om135@group-323117034165 is not in [RUNNING]: current state is CLOSING
> at
> java.base/java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:395)
> at
> java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1999)
> at
> org.apache.hadoop.ozone.om.ratis.OzoneManagerRatisServer.submitRequestToRatis(OzoneManagerRatisServer.java:296)
> ... 13 more
> Caused by: org.apache.ratis.protocol.exceptions.ServerNotReadyException:
> om135@group-323117034165 is not in [RUNNING]: current state is CLOSING
> at
> org.apache.ratis.server.impl.RaftServerImpl.lambda$assertLifeCycleState$9(RaftServerImpl.java:749)
> at
> org.apache.ratis.util.LifeCycle.assertCurrentState(LifeCycle.java:253)
> at
> org.apache.ratis.server.impl.RaftServerImpl.assertLifeCycleState(RaftServerImpl.java:748)
> at
> org.apache.ratis.server.impl.RaftServerImpl.submitClientRequestAsync(RaftServerImpl.java:838)
> at
> org.apache.ratis.server.impl.RaftServerImpl.lambda$null$12(RaftServerImpl.java:831)
> at org.apache.ratis.util.JavaUtils.callAsUnchecked(JavaUtils.java:117)
> at
> org.apache.ratis.server.impl.RaftServerImpl.lambda$executeSubmitClientRequestAsync$13(RaftServerImpl.java:831)
> at
> java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1700)
> ... 3 more {code}
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