benwtrent opened a new issue, #12649:
URL: https://github.com/apache/lucene/issues/12649
### Description
This has failed multiple times in continuous testing environment. I have a
couple different reproduction lines to try, but none seem to replicate the
failure locally. The CI on which these failed is a Linux box using OpenJDK17.
trace:
```
org.apache.lucene.index.TestIndexWriterThreadsToSegments >
testSegmentCountOnFlushRandom FAILED
--
| com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an
uncaught exception in thread: Thread[id=618, name=Thread-542, state=RUNNABLE,
group=TGRP-TestIndexWriterThreadsToSegments]
|
| Caused by:
| java.lang.RuntimeException: java.util.concurrent.BrokenBarrierException
| at __randomizedtesting.SeedInfo.seed([F09778B329E7B1C9]:0)
| at
org.apache.lucene.index.TestIndexWriterThreadsToSegments$2.run(TestIndexWriterThreadsToSegments.java:239)
|
| Caused by:
| java.util.concurrent.BrokenBarrierException
| at
java.base/java.util.concurrent.CyclicBarrier.dowait(CyclicBarrier.java:252)
| at
java.base/java.util.concurrent.CyclicBarrier.await(CyclicBarrier.java:364)
| at
org.apache.lucene.index.TestIndexWriterThreadsToSegments$2.run(TestIndexWriterThreadsToSegments.java:236)
|
| com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an
uncaught exception in thread: Thread[id=626, name=Thread-550, state=RUNNABLE,
group=TGRP-TestIndexWriterThreadsToSegments]
|
| Caused by:
| java.lang.AssertionError
| at __randomizedtesting.SeedInfo.seed([F09778B329E7B1C9]:0)
| at org.junit.Assert.fail(Assert.java:87)
| at org.junit.Assert.assertTrue(Assert.java:42)
| at org.junit.Assert.assertTrue(Assert.java:53)
| at
org.apache.lucene.index.TestIndexWriterThreadsToSegments$CheckSegmentCount.run(TestIndexWriterThreadsToSegments.java:150)
| at
java.base/java.util.concurrent.CyclicBarrier.dowait(CyclicBarrier.java:222)
| at
java.base/java.util.concurrent.CyclicBarrier.await(CyclicBarrier.java:364)
| at
org.apache.lucene.index.TestIndexWriterThreadsToSegments$2.run(TestIndexWriterThreadsToSegments.java:236)
```
Followed by all the traces for the threads complaining about:
```
com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an
uncaught exception in thread: Thread[id=619, name=Thread-543, state=RUNNABLE,
group=TGRP-TestIndexWriterThreadsToSegments]
--
|
| Caused by:
| java.lang.RuntimeException: java.util.concurrent.BrokenBarrierException
| at __randomizedtesting.SeedInfo.seed([F09778B329E7B1C9]:0)
| at
org.apache.lucene.index.TestIndexWriterThreadsToSegments$2.run(TestIndexWriterThreadsToSegments.java:239)
|
| Caused by:
| java.util.concurrent.BrokenBarrierException
| at
java.base/java.util.concurrent.CyclicBarrier.dowait(CyclicBarrier.java:252)
| at
java.base/java.util.concurrent.CyclicBarrier.await(CyclicBarrier.java:364)
| at
org.apache.lucene.index.TestIndexWriterThreadsToSegments$2.run(TestIndexWriterThreadsToSegments.java:236)
```
### Gradle command to reproduce
```
./gradlew test --tests
TestIndexWriterThreadsToSegments.testSegmentCountOnFlushRandom
-Dtests.seed=F09778B329E7B1C9 -Dtests.nightly=true -Dtests.locale=ee-Latn-GH
-Dtests.timezone=WET -Dtests.asserts=true -Dtests.file.encoding=UTF-8
```
```
./gradlew test --tests
TestIndexWriterThreadsToSegments.testSegmentCountOnFlushRandom
-Dtests.seed=8D41B10F3B89A988 -Dtests.nightly=true -Dtests.locale=bez-Latn-TZ
-Dtests.timezone=SST -Dtests.asserts=true -Dtests.file.encoding=UTF-8
```
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