MINOR: Improve reproducability of raft simulation tests #10422
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dajac
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Apr 1, 2021
ijuma
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…e-allocations-lz4 * apache-github/trunk: (243 commits) KAFKA-12590: Remove deprecated kafka.security.auth.Authorizer, SimpleAclAuthorizer and related classes in 3.0 (apache#10450) KAFKA-3968: fsync the parent directory of a segment file when the file is created (apache#10405) KAFKA-12283: disable flaky testMultipleWorkersRejoining to stabilize build (apache#10408) MINOR: remove KTable.to from the docs (apache#10464) MONOR: Remove redudant LocalLogManager (apache#10325) MINOR: support ImplicitLinkedHashCollection#sort (apache#10456) KAFKA-12587 Remove KafkaPrincipal#fromString for 3.0 (apache#10447) KAFKA-12426: Missing logic to create partition.metadata files in RaftReplicaManager (apache#10282) MINOR: Improve reproducability of raft simulation tests (apache#10422) KAFKA-12474: Handle failure to write new session keys gracefully (apache#10396) KAFKA-12593: Fix Apache License headers (apache#10452) MINOR: Fix typo in MirrorMaker v2 documentation (apache#10433) KAFKA-12600: Remove deprecated config value `default` for client config `client.dns.lookup` (apache#10458) KAFKA-12952: Remove deprecated LogConfig.Compact (apache#10451) Initial commit (apache#10454) KAFKA-12575: Eliminate Log.isLogDirOffline boolean attribute (apache#10430) KAFKA-8405; Remove deprecated `kafka-preferred-replica-election` command (apache#10443) MINOR: Fix docs for end-to-end record latency metrics (apache#10449) MINOR Replaced File with Path in LogSegmentData. (apache#10424) KAFKA-12583: Upgrade netty to 4.1.62.Final ...
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When a
@Propertytests fail, jqwik helpfully reports the initial seed that resulted in the failure. For example, if we are executing a test scenario 100 times and it fails on the 51st run, then we will get the initial seed that generated . But if you specify the seed in the@Propertyannotation as the previous comment suggested, then the test still needs to run 50 times before we get to the 51st case, which makes debugging very difficult given the complex nature of the simulation tests. Jqwik also gives us the specific argument list that failed, but that is not very helpful at the moment sinceRandomdoes not have a usefultoStringwhich indicates the initial seed.To address these problems, I've changed the
@Propertymethods to take the random seed as an argument directly so that it is displayed clearly in the output of a failure. I've also updated the documentation to clarify how to reproduce failures.Committer Checklist (excluded from commit message)