[HDFS-10293] StripedFileTestUtil#readAll flaky

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha1
• Fix Version/s: 3.0.0-alpha1
• Component/s: erasure-coding, test
• Hadoop Flags: Reviewed
• Assignee: Mingliang Liu
• Reporter: Mingliang Liu
• Created: 14/Apr/16 18:51
• Updated: 12/May/16 18:15
• Resolved: 15/Apr/16 17:55

Description

The flaky test helper method cause several UT test failing intermittently. For example, the TestDFSStripedOutputStreamWithFailure#testAddBlockWhenNoSufficientParityNumOfNodes timed out in a recent run (see exception), which can be easily reproduced locally.

Debugging at the code, chances are that the helper method is stuck in an infinite loop. We need a fix to make the test robust.