[HDDS-9062] NPE during investigation of datanode OOM

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Component/s: Ozone Datanode
• Labels: pull-request-available
• Assignee: Devesh Kumar Singh
• Reporter: Devesh Kumar Singh
• Due: 21/Jul/23
• Created: 21/Jul/23 16:30
• Updated: 21/Jul/23 18:05
• Resolved: 21/Jul/23 18:05

Description

Jul 20, 2023 1:24:56 PM org.apache.ratis.thirdparty.io.grpc.internal.SerializingExecutor run SEVERE: Exception while executing runnable org.apache.ratis.thirdparty.io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1Closed@60a1ee40 java.lang.NullPointerException at java.base/java.nio.file.Files.provider(Files.java:101) at java.base/java.nio.file.Files.deleteIfExists(Files.java:1181) at org.apache.hadoop.ozone.container.replication.SendContainerRequestHandler.deleteTarball(SendContainerRequestHandler.java:131) at org.apache.hadoop.ozone.container.replication.SendContainerRequestHandler.onError(SendContainerRequestHandler.java:97) at org.apache.ratis.thirdparty.io.grpc.stub.ServerCalls$StreamingServerCallHandler$StreamingServerCallListener.onCancel(ServerCalls.java:288) at org.apache.ratis.thirdparty.io.grpc.PartialForwardingServerCallListener.onCancel(PartialForwardingServerCallListener.java:40) at org.apache.ratis.thirdparty.io.grpc.ForwardingServerCallListener.onCancel(ForwardingServerCallListener.java:23) at org.apache.ratis.thirdparty.io.grpc.ForwardingServerCallListener$SimpleForwardingServerCallListener.onCancel(ForwardingServerCallListener.java:40) at org.apache.ratis.thirdparty.io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.closedInternal(ServerCallImpl.java:378) at org.apache.ratis.thirdparty.io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.closed(ServerCallImpl.java:365) at org.apache.ratis.thirdparty.io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1Closed.runInContext(ServerImpl.java:923) at org.apache.ratis.thirdparty.io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) at org.apache.ratis.thirdparty.io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:133) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:834)

 

found this NPE during investigation of datanode OOM.

Issue Links

• duplicates: HDDS-9059 NullPointerException in SendContainerRequestHandler.deleteTarball
• links to: GitHub Pull Request #5102