[RATIS-1889] NoSuchMethodError: RaftServerMetricsImpl.addNumPendingRequestsGauge

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5.1
• Fix Version/s: 3.0.0
• Component/s: server
• Assignee: Xinyu Tan
• Reporter: Song Ziyang
• Created: 16/Sep/23 05:32
• Updated: 20/Sep/23 15:03
• Resolved: 20/Sep/23 15:03

Description

 
Error: Exception in thread "0@group-000100000001-LeaderElection10" java.lang.NoSuchMethodError: org.apache.ratis.server.metrics.RaftServerMetricsImpl.addNumPendingRequestsGauge(Ljava/util/function/Supplier;)V
at org.apache.ratis.server.impl.PendingRequests$RequestMap.<init>(PendingRequests.java:115)
at org.apache.ratis.server.impl.PendingRequests.<init>(PendingRequests.java:224)
at org.apache.ratis.server.impl.LeaderStateImpl.<init>(LeaderStateImpl.java:341)
at org.apache.ratis.server.impl.RoleInfo.updateLeaderState(RoleInfo.java:82)
at org.apache.ratis.server.impl.RaftServerImpl.changeToLeader(RaftServerImpl.java:572)
at org.apache.ratis.server.impl.LeaderElection.run(LeaderElection.java:248) 16212 at java.lang.Thread.run(Thread.java:750)
 
The ratis jar was packaged  after snapshot-branch2, commit 284ecbb25cb60a2ea3fde07fb71672fb122f53ac, using Oracle JDK 8u381 for Apple Silicon. It ran well on my local env (with JRE 8u381). However, it failed in github CI(https://github.com/apache/iotdb/actions/runs/6117648373/job/16604591720) and tanxinyu's local computer (OpenJDK8 Zulu for Apple Silicon), reproducible.
 
Previously I built ratis snapshot jars with  x86 JDK 8 and everything worked just fine. I guess something goes wrong regarding Java Cross Platform Compatibility. 
 
Miraculously, if we change the method reference (resource::getMegaSizeByte) to lambda expression (() -> resource.getMegaSizeByte()), the error goes away. 
The semantics of method reference and lambda should be same (despite that they do differ in byte code). 

Issue Links

• links to: GitHub Pull Request #922