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From Stack <st...@duboce.net>
Subject Testing and CI -- Apache Jenkins Builds (WAS -> Re: Testing)
Date Tue, 04 Nov 2014 17:38:46 GMT
Branch-1 and master have stabilized and now run mostly blue (give or take
the odd failure) [1][2]. Having a mostly blue branch-1 has helped us
identify at least one destabilizing commit in the last few days, maybe two;
this is as it should be (smile).

Lets keep our builds blue. If you commit a patch, make sure subsequent
builds stay blue. You can subscribe to builds@hbase.apache.org to get
notice of failures if not already subscribed.


1. https://builds.apache.org/view/H-L/view/HBase/job/HBase-1.0/
2. https://builds.apache.org/view/H-L/view/HBase/job/HBase-TRUNK/

On Mon, Oct 13, 2014 at 4:41 PM, Stack <stack@duboce.net> wrote:

> A few notes on testing.
> Too long to read, infra is more capable now and after some work, we are
> seeing branch-1 and trunk mostly running blue. Lets try and keep it this
> way going forward.
> Apache Infra has new, more capable hardware.
> A recent spurt of test fixing combined with more capable hardware seems to
> have gotten us to a new place; tests are mostly passing now on branch-1 and
> master.  Lets try and keep it this way and start to trust our test runs
> again.  Just a few flakies remain.  Lets try and nail them.
> Our tests now run in parallel with other test suites where previous we ran
> alone. You can see this sometimes when our zombie detector reports tests
> from another project altogether as lingerers (To be fixed).  Some of our
> tests are failing because a concurrent hbase run is undoing classes and
> data from under it. Also, lets fix.
> Our tests are brittle. It takes 75minutes for them to complete.  Many are
> heavy-duty integration tests starting up multiple clusters and mapreduce
> all in the one JVM. It is a miracle they pass at all.  Usually integration
> tests have been cast as unit tests because there was no where else for them
> to get an airing.  We have the hbase-it suite now which would be a more apt
> place but until these are run on a regular basis in public for all to see,
> the fat integration tests disguised as unit tests will remain.  A review of
> our current unit tests weeding the old cruft and the no longer relevant or
> duplicates would be a nice undertaking if someone is looking to contribute.
> Alex Newman has been working on making our tests work up on travis and
> circle-ci.  That'll be sweet when it goes end-to-end.  He also added in
> some "type" categorizations -- client, filter, mapreduce -- alongside our
> old "sizing" categorizations of small/medium/large.  His thinking is that
> we can run these categorizations in parallel so we could run the total
> suite in about the time of the longest test, say 20-30minutes?  We could
> even change Apache to run them this way.
> FYI,
> St.Ack

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