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From "Tony Reix (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-8506) List of 33 Unstable tests on branch-2.7
Date Mon, 01 Jun 2015 09:55:17 GMT
Tony Reix created HDFS-8506:
-------------------------------

             Summary: List of 33 Unstable tests on branch-2.7
                 Key: HDFS-8506
                 URL: https://issues.apache.org/jira/browse/HDFS-8506
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: test
    Affects Versions: 2.7.1
         Environment: Ubuntu / x86_64
Hadoop branch-2.7 (source code of Monday May 26th)
            Reporter: Tony Reix


On my Ubuntu / x86_64 machine, configured for Hadoop since months, I've run Hadoop tests of
branch branch-2.7 (source code of Monday May 26th) during days. It produced 14 runs in the
EXACT same environment. And it shows that several tests sometimes fail, randomly.
12 runs gave the exact same number of tests done and tests skipped:
    - 10977 tests
    -     254 skipped
1 test gave only 10972 tests. Another gave only 9760 tests.
I've used the 12 runs with 10977 tests for building the attached result file, which shows
that 33 tests sometimes fail.

T: Tests
F: Failures
E: Errors
S: Skipped
NN/n : Number of times the issue appeared out of the 12 runs
m-M: minimum number of failure up to Maximum number of failures.

Example:
                                                                  T      F      E      S |
  NN/n
--------------------------------------------------------------------------------------
cli.TestHDFSCLI                                        1    0-1      0      0 |  11/12
hdfs.TestAppendSnapshotTruncate          1      0    0-1      0 |   1/12
...



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