[Bug 1017113] Re: FTBFS: Sveral tests fails

[Clint Byrum]

Hi Martin. These are basically timeouts because each test needs to
finish in less than 5 seconds. Some of them take 1 - 2 seconds normally,
so if your system gets busy for a second, that can be enough to push a
few of them over 5 seconds.

A few tips:

1) I use sbuild, not pbuilder. If you use the 'mk-sbuild' script to
build your chroot, you can pass it --eatmydata, which will help a lot.
The tests run zookeeper, which fsyncs every write to disk. --eatmydata
sets up your schroot to run everything inside 'eatmydata' which
disables fsync and so de-couples your build from having to flush to
disk.

2) If you have access to a machine with an SSD, that also helps a lot.
On a non-SSD box, the tests take 7 minutes. With eatmydata, that drops
to 5. With an SSD machine those numbers are cut in half. Thus, each
tests is faster and so has less chance to cross over 5 seconds.

Anyway, I think this is worth re-titling to "test suite fails
sporadically" and mark as an upstream bug.

** Summary changed:

- FTBFS: Sveral tests fails
+ Juju test suite fails sporadically due to low timeouts

** Changed in: juju (Ubuntu)
       Status: Confirmed => Triaged

** Also affects: juju
   Importance: Undecided
       Status: New

** Changed in: juju
       Status: New => Confirmed

** Changed in: juju (Ubuntu)
   Importance: Undecided => Medium

** Changed in: juju
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/1017113

Title:
  Juju test suite fails sporadically due to low timeouts

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