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https://issues.apache.org/jira/browse/YARN-4478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15254330#comment-15254330
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Allen Wittenauer commented on YARN-4478:
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Just an FYI, but there are two key problems that folks should be aware of:
#1:
None of the current hadoop jenkins "build project" jobs actually report all of
the unit test failures in a consistent manner due to how maven works. If a
dependent module fails, then the parent module is never run. In words:
Given two modules A, B. Relationship is such that B requires A.
If A's unit tests succeed, then B's unit tests are executed.
If A's unit tests fail, then B's unit tests are *never run*.
#2
I've already determined that a large chunk of the YARN unit tests CANNOT be run
simultaneously due to TCP port usage. (See YARN-4950). This means that if two
YARN nightlies are running on the same box at the same time, it's pretty much a
100% certainty that there will be spurious failures. (Yetus guarantees
some\-\-but not total\-\-isolation via docker, so precommit should be immune to
this particular problem.)
That said, I've been working on a Yetus-based replacement for full compiles
(YETUS-156). This would at least solve major parts of both these issues. I've
been running it in test for Hadoop for a while now:
(https://builds.apache.org/view/H-L/view/Hadoop/job/hadoop-qbt-test ). I've
had unit tests turned off, but I just kicked off another run with the unit
tests turned on so that you can see what happens.
> [Umbrella] : Track all the Test failures in YARN
> ------------------------------------------------
>
> Key: YARN-4478
> URL: https://issues.apache.org/jira/browse/YARN-4478
> Project: Hadoop YARN
> Issue Type: Bug
> Components: yarn
> Reporter: Rohith Sharma K S
>
> Recently many test cases are failing either timed out or new bug fix caused
> impact. Many test faiures JIRA are raised and are in progress.
> This is to track all the test failures JIRA's
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