scripts/travis-ci: bump apt timeout in before_install.bash. #3313
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After switching to using a mirror of MXE on dl.mumble.info we've begun running into timeouts from apt on Travis CI. For example: E: Failed to fetch https://dl.mumble.info/mirror/pkg.mxe.cc/repos/apt/debian/pool/main/m/mxe-x86-64-unknown-linux-gnu-cmake/mxe-x86-64-unknown-linux-gnu-cmake_3.5.2-20170208_amd64.deb Operation too slow. Less than 10 bytes/sec transferred the last 10 seconds The error is from cURL, and it means that the options CURLOPT_LOW_SPEED_LIMIT and CURLOPT_LOW_SPEED_TIME are set quite low. (See https://github.com/curl/curl/blob/bb0ffcc36fd46298e02f943b255ee5d6553c06dc/lib/speedcheck.c) To fix this, we set the Acquire::http::Timeout option to 120 seconds. This causes apt's https transport to set CURLOPT_LOW_SPEED_TIME to 120. (See https://github.com/Debian/apt/blob/debian/wheezy/methods/https.cc#L224-L230) Fixes mumble-voip#3312
| @@ -8,6 +8,13 @@ | |||
| MUMBLE_HOST_DEB=${MUMBLE_HOST/_/-} | |||
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| if [ "${TRAVIS_OS_NAME}" == "linux" ]; then | |||
| # Bump the apt http timeout to 120 seconds. | |||
| # Without this, we'd regularly get timeout errors | |||
| # from our MXE mirror on dl.mumble.info. | |||
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*when downloading MXE from our mirror at dl.mumble.info.
it's not our mirror that causes the error
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Hmm. OK. Maybe I should've elaborated.
I think the error happens because for Fastly to serve a file, unless you've got "streaming" enabled, it'll wait serving any bytes until the file is fully downloaded to the Fastly node.
(See https://docs.fastly.com/guides/performance-tuning/improving-caching-performance-with-large-files)
Obviously, such a scenario would trigger the error messages we've been getting.
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I suppose I should mention this in the code? :)
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I've decided to leave the message as-is, and referenced my comment here from the issue.
Thanks for the review.
After switching to using a mirror of MXE on dl.mumble.info we've begun
running into timeouts from apt on Travis CI. For example:
The error is from cURL, and it means that the options CURLOPT_LOW_SPEED_LIMIT
and CURLOPT_LOW_SPEED_TIME are set quite low.
(See https://github.com/curl/curl/blob/bb0ffcc36fd46298e02f943b255ee5d6553c06dc/lib/speedcheck.c)
To fix this, we set the Acquire::http::Timeout option to 120 seconds.
This causes apt's https transport to set CURLOPT_LOW_SPEED_TIME to 120.
(See https://github.com/Debian/apt/blob/debian/wheezy/methods/https.cc#L224-L230)
Fixes #3312