[RATIS-1624] Can't use set configuration to add a new Listener correctly

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.4.0, 3.0.0
• Component/s: server
• Assignee: Lei Qian
• Reporter: Lei Qian
• Created: 18/Jul/22 07:58
• Updated: 16/Aug/22 16:34
• Resolved: 20/Jul/22 15:31

Description

This error will occur in leader node when use set configuration to add a listener.

java.lang.NullPointerException: n1: Server n3 not found: peers=[n0, n1, n2]
    at java.base/java.util.Objects.requireNonNull(Objects.java:334)
    at org.apache.ratis.util.PeerProxyMap.getProxy(PeerProxyMap.java:111)
    at org.apache.ratis.grpc.server.GrpcLogAppender.getClient(GrpcLogAppender.java:97)
    at org.apache.ratis.grpc.server.GrpcLogAppender.appendLog(GrpcLogAppender.java:215)
    at org.apache.ratis.grpc.server.GrpcLogAppender.run(GrpcLogAppender.java:149)
    at org.apache.ratis.server.leader.LogAppenderDaemon.run(LogAppenderDaemon.java:77)
    at java.base/java.lang.Thread.run(Thread.java:833)

Issue Links

• links to: GitHub Pull Request #683