Intermittent Test failure: VcrBackupTest.singleNodeUpDownTestWithoutPersist "Blob count is not correct"
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- Dominant language
- Java
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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
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- 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