[
https://issues.apache.org/jira/browse/RATIS-1778?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Tsz-wo Sze updated RATIS-1778:
------------------------------
Component/s: Linearizable Read
> Fix NPE in ReadIndexHeartbeats
> ------------------------------
>
> Key: RATIS-1778
> URL: https://issues.apache.org/jira/browse/RATIS-1778
> Project: Ratis
> Issue Type: Sub-task
> Components: Linearizable Read, server
> Reporter: Yaolong Liu
> Assignee: Yaolong Liu
> Priority: Major
> Fix For: 3.0.0, 2.5.0
>
> Time Spent: 2.5h
> Remaining Estimate: 0h
>
> When a raft node fails to start, NPE will appear, and the error stack is as
> follows:
> {code:java}
> GrpcLogAppender - Failed onNext
> request=AppendEntriesRequest:cid=302,entriesCount=0,lastEntry=null,
> reply=VM-212-21-centos_19201<-VM-212-21-centos_19200#302:OK-t230,SUCCESS,nextIndex=76347,followerCommit=76346,matchIndex=-1
> java.lang.NullPointerException
> at
> org.apache.ratis.server.impl.ReadIndexHeartbeats$AppendEntriesListener.lambda$receive$1(ReadIndexHeartbeats.java:104)
> at
> org.apache.ratis.server.impl.LeaderStateImpl.hasMajority(LeaderStateImpl.java:841)
> at
> org.apache.ratis.server.impl.LeaderStateImpl.hasMajority(LeaderStateImpl.java:822)
> at
> org.apache.ratis.server.impl.ReadIndexHeartbeats$AppendEntriesListener.receive(ReadIndexHeartbeats.java:104)
> at
> org.apache.ratis.server.impl.ReadIndexHeartbeats$AppendEntriesListeners.onAppendEntriesReply(ReadIndexHeartbeats.java:141)
> at
> org.apache.ratis.server.impl.ReadIndexHeartbeats.onAppendEntriesReply(ReadIndexHeartbeats.java:167)
> at
> org.apache.ratis.server.impl.LeaderStateImpl.onAppendEntriesReply(LeaderStateImpl.java:1122)
> at
> org.apache.ratis.grpc.server.GrpcLogAppender$AppendLogResponseHandler.onNextImpl(GrpcLogAppender.java:395)
> at
> org.apache.ratis.grpc.server.GrpcLogAppender$AppendLogResponseHandler.onNext(GrpcLogAppender.java:359)
> at
> org.apache.ratis.grpc.server.GrpcLogAppender$AppendLogResponseHandler.onNext(GrpcLogAppender.java:334)
> at
> org.apache.ratis.thirdparty.io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onMessage(ClientCalls.java:474)
> at
> org.apache.ratis.thirdparty.io.grpc.internal.DelayedClientCall$DelayedListener.onMessage(DelayedClientCall.java:452)
> at
> org.apache.ratis.thirdparty.io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1MessagesAvailable.runInternal(ClientCallImpl.java:661)
> at
> org.apache.ratis.thirdparty.io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1MessagesAvailable.runInContext(ClientCallImpl.java:646)
> at
> org.apache.ratis.thirdparty.io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
> at
> org.apache.ratis.thirdparty.io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:133)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:750)
> {code}
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
