[RATIS-1567] NettyServerStreamRpc may throw NPE

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.3.0
• Component/s: Netty, Streaming
• Assignee: Tsz-wo Sze
• Reporter: Tsz-wo Sze
• Created: 19/Apr/22 18:16
• Updated: 05/Aug/22 16:53
• Resolved: 26/Apr/22 07:58

Description

Caused by: java.lang.NullPointerException: 9187e594-73d1-45a0-8e82-be980971cb95-NettyServerStreamRpc: Server a137b4fa-0101-49ed-9769-719c74b0ad17 not found: peers=[]
        at java.base/java.util.Objects.requireNonNull(Objects.java:347)
        at org.apache.ratis.util.PeerProxyMap.getProxy(PeerProxyMap.java:110)
        at org.apache.ratis.netty.server.NettyServerStreamRpc$Proxies.getDataStreamOutput(NettyServerStreamRpc.java:103)
        at org.apache.ratis.netty.server.NettyServerStreamRpc$Proxies.getDataStreamOutput(NettyServerStreamRpc.java:91)
        at org.apache.ratis.netty.server.DataStreamManagement$StreamInfo.<init>(DataStreamManagement.java:140)
        at org.apache.ratis.netty.server.DataStreamManagement.newStreamInfo(DataStreamManagement.java:275)

Issue Links

• is duplicated by: RATIS-1531 NettyServerStreamRpc.Proxies#getProxy NPE
• links to: GitHub Pull Request #634