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Posted to commits@druid.apache.org by GitBox <gi...@apache.org> on 2021/12/16 00:33:20 UTC
[GitHub] [druid] paul-rogers commented on pull request #12058: Response "trailer" support
paul-rogers commented on pull request #12058:
URL: https://github.com/apache/druid/pull/12058#issuecomment-995327640
One of the steps failed in a unit test which appears due to flaky behavior:
```text
[ERROR] testReconnectWithCacheAndPrefetch(org.apache.druid.data.input.impl.prefetch.PrefetchableTextFilesFirehoseFactoryTest) Time elapsed: 8.224 s <<< ERROR!
java.lang.RuntimeException: java.util.concurrent.TimeoutException
at org.apache.druid.data.input.impl.prefetch.Fetcher.openObjectFromLocal(Fetcher.java:226)
at org.apache.druid.data.input.impl.prefetch.Fetcher.next(Fetcher.java:177)
at org.apache.druid.data.input.impl.prefetch.PrefetchableTextFilesFirehoseFactory$2.next(PrefetchableTextFilesFirehoseFactory.java:239)
at org.apache.druid.data.input.impl.prefetch.PrefetchableTextFilesFirehoseFactory$2.next(PrefetchableTextFilesFirehoseFactory.java:225)
at org.apache.druid.data.input.impl.FileIteratingFirehose.getNextLineIterator(FileIteratingFirehose.java:105)
at org.apache.druid.data.input.impl.FileIteratingFirehose.hasMore(FileIteratingFirehose.java:66)
at org.apache.druid.data.input.impl.prefetch.PrefetchableTextFilesFirehoseFactoryTest.testReconnectWithCacheAndPrefetch(PrefetchableTextFilesFirehoseFactoryTest.java:356)
```
Took a look a the test. The Firehose is completely separate from any of the areas I changed. Perhaps there is a race condition in the code, though brief inspection did not reveal the cause. The test works fine in Maven and in the IDE on my machine. Anyone seen this one fail previously? Added more detail to the exception in case if fails again. Let's not hold up reviews due to this test.
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