[RATIS-1920] NPE in AppendLogResponseHandler

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0
• Component/s: gRPC
• Assignee: Tsz-wo Sze
• Reporter: Tsz-wo Sze
• Created: 25/Oct/23 00:36
• Updated: 25/Oct/23 15:08
• Resolved: 25/Oct/23 06:03

Description

2023-10-24 17:32:50 ERROR GrpcLogAppender:408 - Failed onNext request=null, reply=n1<-n2#136:FAIL-t2,INCONSISTENCY,nextIndex=1590,followerCommit=1587,matchIndex=-1
java.lang.NullPointerException
	at org.apache.ratis.grpc.server.GrpcLogAppender$AppendLogResponseHandler.onNextImpl(GrpcLogAppender.java:440)
	at org.apache.ratis.grpc.server.GrpcLogAppender$AppendLogResponseHandler.onNext(GrpcLogAppender.java:406)
	at org.apache.ratis.grpc.server.GrpcLogAppender$AppendLogResponseHandler.onNext(GrpcLogAppender.java:379)
	at org.apache.ratis.thirdparty.io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onMessage(ClientCalls.java:474)
	...

Issue Links

• is caused by: RATIS-1902 The snapshot index is set incorrectly in InstallSnapshotReplyProto
• links to: GitHub Pull Request #952