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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12711) deadly hdfs test
Date Fri, 17 Nov 2017 07:12:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12711?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16256584#comment-16256584

Allen Wittenauer commented on HDFS-12711:

Ignoring the hs_err_pid log files is pretty much just sticking our collective heads in the
sand about actual, real problems with the unit tests. The unit tests themselves haven't been
rock solid for a very long time, even before all of this start happening.   Entries have been
put into the ignore pile so often that I wouldn't be surprised if the community is already
at the point that most developers are ignoring precommit.  (e.g., commits with findbugs reported
in the issues, javadoc compilation failures being treated as "environmental", etc, etc.) 

If I were actually paying more attention to day-to-day Hadoop bits these days, I'd probably
be ready to disable unit tests (at least HDFS) to specifically avoid the "cried wolf" condition.
 The rest of the precommit tests work properly the vast majority of the time and are probably
more important given the current state of things. (Never mind the massive speed up. QBT is
hitting the 15 hour mark for a full run for branch-2 when it is actually allowed to complete.)
 No one seems to actually care that the unit tests are a broken mess and I doubt they'd be

My goal here was to prevent Hadoop from bringing down the rest of the ASF build infrastructure.
 It's under enough stress without this project making things that much worse.  Achievement
unlocked and other Yetus users will pick up those new safety features in the next release.
 I should probably close this JIRA issue. Unless someone else plans to spend some effort on
these bugs?  At least at this point in time, I view my work here as complete. 



ARGH.  That hasn't been valid since Hadoop used ant.  A great example of "well, if we ignore
it, it doesn't exist, right?"  Because anything that is still using /build/ almost certainly
isn't safe for parallel tests and likely contributing to a whole host of problems.

> deadly hdfs test
> ----------------
>                 Key: HDFS-12711
>                 URL: https://issues.apache.org/jira/browse/HDFS-12711
>             Project: Hadoop HDFS
>          Issue Type: Test
>    Affects Versions: 2.9.0, 2.8.2
>            Reporter: Allen Wittenauer
>            Priority: Critical
>         Attachments: HDFS-12711.branch-2.00.patch, fakepatch.branch-2.txt

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