Travis failing intermittently

[richardjgowers]

So sometimes the CI builds fail with an error message like /home/travis/build.sh: line 41: 6616 Killed nosetests. Restarting the job will usually make it pass though.

Example of error:
https://travis-ci.org/MDAnalysis/mdanalysis/jobs/66850464

A little googling makes me think that this is caused by file IO....

I'm going to put the nosetests in .travis.yml to verbose for now so we can see which tests are running when failures happen.

[richardjgowers]

test_TS_indices (MDAnalysisTests.test_timestep_api.TestTimestep_Copy_TRR) ... /home/travis/build.sh: line 41: 6616 Killed nosetests -v

So this test has made travis fail twice now....

[orbeckst]

It really is intermittent: a few builds passed but most of the 2.6 ones fail at exactly the same step that you mention. A bit annoying really.

[orbeckst]

Could this be a problem with exhausting the 3GB memory limit. Some related suggestions at https://jira.duraspace.org/browse/DS-2292

[richardjgowers]

Could link up to #297 then

[richardjgowers]

I think making Universes and Readers del properly (#297) should fix this, so I'm removing 2.6 travis for a while (2.7 seems to pass?)

[orbeckst]

Ok.