[RATIS-1876] NPE in GrpcLogAppender.resetClient

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0, 2.5.2
• Component/s: gRPC
• Assignee: Tsz-wo Sze
• Reporter: Tsz-wo Sze
• Created: 25/Aug/23 07:33
• Updated: 27/Aug/23 16:14
• Resolved: 27/Aug/23 11:16

Description

java.lang.NullPointerException
	at org.apache.ratis.grpc.server.GrpcLogAppender.resetClient(GrpcLogAppender.java:126)
	at org.apache.ratis.grpc.server.GrpcLogAppender.access$700(GrpcLogAppender.java:60)
	at org.apache.ratis.grpc.server.GrpcLogAppender$AppendLogResponseHandler.onError(GrpcLogAppender.java:456)
	at org.apache.ratis.thirdparty.io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:487)

Issue Links

• is caused by: RATIS-1868 Handling Netty back pressure when streaming ratis log
• links to: GitHub Pull Request #908