duongkame commented on PR #1011:
URL: https://github.com/apache/ratis/pull/1011#issuecomment-1892686416
Moved back to draft to debug a relevant error. Somehow
TestRaftWithSimulatedRpc (testWithLoad and testOldLeaderNotCommit) creates a
situation which two log entries (different terms) come to a server for the same
index. The later fails because the TransactionContext has already already
created and cached for the first one.
This seems to be always the case, but now starts to be exposed because now
we apply referent count for appendEntries.
@szetszwo
```
Caused by: java.lang.IllegalStateException: entry.term: expected == 4 but
computed == 5
at org.apache.ratis.util.Preconditions.assertTrue(Preconditions.java:76)
at org.apache.ratis.util.Preconditions.assertSame(Preconditions.java:81)
at
org.apache.ratis.statemachine.TransactionContext.wrap(TransactionContext.java:104)
at
org.apache.ratis.statemachine.impl.TransactionContextImpl.wrap(TransactionContextImpl.java:136)
at
org.apache.ratis.server.raftlog.segmented.SegmentedRaftLog.appendEntryImpl(SegmentedRaftLog.java:434)
at
org.apache.ratis.server.raftlog.RaftLogBase.lambda$appendEntry$11(RaftLogBase.java:351)
at
org.apache.ratis.server.raftlog.RaftLogSequentialOps$Runner.runSequentially(RaftLogSequentialOps.java:78)
at
org.apache.ratis.server.raftlog.RaftLogBase.appendEntry(RaftLogBase.java:351)
at
org.apache.ratis.server.raftlog.segmented.SegmentedRaftLog.appendImpl(SegmentedRaftLog.java:477)
at
org.apache.ratis.server.raftlog.RaftLogBase.lambda$append$12(RaftLogBase.java:358)
at
org.apache.ratis.server.raftlog.RaftLogSequentialOps$Runner.runSequentially(RaftLogSequentialOps.java:69)
at
org.apache.ratis.server.raftlog.RaftLogBase.append(RaftLogBase.java:358)
at
org.apache.ratis.server.impl.RaftServerImpl.appendEntriesAsync(RaftServerImpl.java:1653)
at
org.apache.ratis.server.impl.RaftServerImpl.appendEntriesAsync(RaftServerImpl.java:1517)
at
org.apache.ratis.server.impl.RaftServerImpl.appendEntries(RaftServerImpl.java:1500)
at
org.apache.ratis.server.impl.RaftServerProxy.appendEntries(RaftServerProxy.java:663)
at
org.apache.ratis.server.simulation.SimulatedServerRpc$1.handleRequest(SimulatedServerRpc.java:163)
```
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