I tried to force travis to use a standard trusty vm in https://github.com/apache/calcite/pull/293, so that the VM is assigned 7.5GB of memory. Unfortunately, travis is still quite flaky, with tests only passing some of the time.

Would it be useful to move to another CI? I tried setting up my fork to use wercker: https://github.com/F21/calcite/blob/use-wercker/wercker.yml which failed here: https://app.wercker.com/F21/calcite/runs/build-jdk-7/57f3172e3b89220100273603?step=57f3173814732000019140d0

Unfortunately, I haven't found a solution to this error:

[ERROR] Failed to execute goal pl.project13.maven:git-commit-id-plugin:2.1.9:revision (default) on project calcite: Execution default of goal pl.project13.maven:git-commit-id-plugin:2.1.9:revision failed: Unable to calculate distance between [commit be18b25415a305aab2d0de2bd074755630e08462 1475548960 ----sp] and [commit 08c56b158ffcfcf205a919cc9fff77a692e649f6 1474099831 ----sp]: Missing commit 63c51d0c6459a4de5cab01188a7f3b7dd1a259fb -> [Help 1]

Francis

On 4/10/2016 10:55 AM, Julian Hyde wrote:
I’ve noticed it. A lot of Travis builds seem to hang. See the last two lines of 
https://travis-ci.org/apache/calcite/jobs/163844678: 
<https://travis-ci.org/apache/calcite/jobs/163844678:>

  No output has been received in the last 10 minutes, this potentially
indicates a stalled build or something wrong with the build itself.

The build has been terminated
I don’t know why Travis does this. I suspect that the Travis VM doesn’t have 
enough memory to complete the task, or the job takes longer than Travis allows, 
but these are wild guesses.

I have been running the build and tests on my own Linux server in a variety of 
configurations (in particular JDK 1.7 and 1.8, and a couple of timezones, and 
occasionally also on macOS and Windows), and I can confirm that everything is 
stable.

Julian


On Oct 3, 2016, at 3:20 PM, Laurent Goujon <[email protected]> wrote:

Hi,

I just opened a pull request against Calcite master, and the travis build
failed. But then I checked the master branch, and according to Travis, it's
also failing.

Is it something known, or just a transient issue?

Thanks in advance,

Laurent


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