mikemccand commented on issue #14864: URL: https://github.com/apache/lucene/issues/14864#issuecomment-3019391074
> i think when we re-run with the same seed, we should get repeatable results from `random()` but I'm seeing different ones This is a separate bug, a test bug, from the actual core bug test is trying to catch. Indeed with the same seed the sequence of random choices is supposed to be the same and the bug should reproduce. But the JDK does not give us "deterministic random" thread scheduling, so if there's something about the core bug that's only tickled when threads are scheduled just so, that could cause non-reproducibility. Even then, each thread has its own thread-private deterministic random, so the random choices that thread makes should also be the same with the same starting seed. If on the main thread you see the `random()` instance not giving the same random int from run to run with a fixed seed, that should be easier to find -- that's a straight up test randomness bug? > which is the test seed I supplied on the command line Hmm is it possible with the recent build (gradle) refactorings somehow broke forwarding the seed to all spawned tests? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For additional commands, e-mail: issues-h...@lucene.apache.org
