kbendick commented on a change in pull request #3801:
URL: https://github.com/apache/iceberg/pull/3801#discussion_r775774386
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File path: core/src/test/java/org/apache/iceberg/hadoop/TestCachingCatalog.java
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@@ -257,6 +264,44 @@ public void
testCacheExpirationEagerlyRemovesMetadataTables() throws IOException
catalog.cache().asMap().containsKey(metadataTable)));
}
+ @Test
+ @Ignore("reproduces https://github.com/apache/iceberg/issues/3791";)
+ public void testDeadlock() throws IOException, InterruptedException {
+ HadoopCatalog underlyingCatalog = hadoopCatalog();
+ TestableCachingCatalog catalog =
TestableCachingCatalog.wrap(underlyingCatalog, Duration.ofSeconds(1), ticker);
+ Namespace namespace = Namespace.of("db", "ns1", "ns2");
+ int numThreads = 20;
Review comment:
Would it make sense to use fewer threads, so the space for collision /
hitting the deadlock is smaller? And then iterating like you are a few extra
times? This way the `Random.nextInt` calls are more likely to collide and we
don't have to spawn so many threads.
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