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Travis CI build fails intermittently

See original GitHub issue

Sometimes the build fails because of a missing maxCanvasPixels property. Build https://travis-ci.org/mozilla/pdf.js/builds/519475880?utm_source=github_status&utm_medium=notification is an example with the following stack trace:

[22:18:21] Finished 'default_preferences-pre' after 7.48 s
[22:18:21] Starting '<anonymous>'...
[22:18:22] '<anonymous>' errored after 51 ms
[22:18:22] TypeError: Cannot read property 'maxCanvasPixels' of undefined
    at Object.<anonymous> (/home/travis/build/mozilla/pdf.js/build/default_preferences/lib/web/app_options.js:70:68)
    at Module._compile (internal/modules/cjs/loader.js:816:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:827:10)
    at Module.load (internal/modules/cjs/loader.js:685:32)
    at Function.Module._load (internal/modules/cjs/loader.js:620:12)
    at Module.require (internal/modules/cjs/loader.js:723:19)
    at require (internal/modules/cjs/helpers.js:14:16)
    at /home/travis/build/mozilla/pdf.js/gulpfile.js:552:5
    at bound (domain.js:425:14)
    at runBound (domain.js:438:12)
[22:18:22] 'default_preferences' errored after 7.76 s

I think I have also seen it happening locally once, but I’m not entirely sure. Perhaps it’s a race condition where the default preferences are not generated yet before the next task in executed?

Issue Analytics

State:
Created 4 years ago
Comments:7 (5 by maintainers)

Top GitHub Comments

1reaction

timvandermeijcommented, Dec 15, 2019

It’s yours!

1reaction

Snuffleupaguscommented, Apr 12, 2019

Perhaps it’s a race condition where the default preferences are not generated yet before the next task in executed?

The problem might be that the default_preferences task runs twice during the setup phase, in the lint respectively the lib task, which I suppose could lead to intermittent issues with files not being found.

Edit: The fact that certain gulp tasks run more than once, rather than being cached, is probably not limited to the particular task under discussion here though…

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