linkedin / linkedin/ambry

Intermittent Test failure: VcrBackupTest.singleNodeUpDownTestWithoutPersist "Blob count is not correct"

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test-failure
Dominant language
Java
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Avg merge
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Merged PRs (30d)
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Description

Failed on travis build once, and then succeeded on the next attempt:
```
com.github.ambry.server.VcrBackupTest > singleNodeUpDownTestWithoutPersist FAILED
java.lang.AssertionError: Blob count is not correct.
at org.junit.Assert.fail(Assert.java:89)
at org.junit.Assert.assertTrue(Assert.java:42)
at com.github.ambry.server.VcrBackupTest.singleNodeUpDownTestWithoutPersist(VcrBackupTest.java:141)
```

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with com.github.ambry.server.VcrBackupTest.singleNodeUpDownTestWithoutPersist and the assertion reported at VcrBackupTest.java:141. Run the test repeatedly to determine when the blob count diverges and whether the failure can be reproduced. Done means the test no longer fails intermittently and the expected blob count assertion remains valid.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
distributed-systems, testing
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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