Travis CI Build Failing

Question

I am having an issue with Travis CI - the commits that I push all fail with the same error:

0.06s$ curl -sSL "http://llvm.org/apt/llvm-snapshot.gpg.key" | sudo -E apt-key add - gpg: no valid OpenPGP data found. The command "curl -sSL "http://llvm.org/apt/llvm-snapshot.gpg.key" | sudo -E apt-key add -" failed and exited with 2 during . Your build has been stopped.

I tried to rebuild a previous commit that built successfully and the same error occurs. Any suggestions as to how to troubleshoot the issue?

Answer 1

http://llvm.org/apt/llvm-snapshot.gpg.key is returning 404 since about 2 days ago. And http://llvm.org/apt/ which is linked from their homepage returns 404.

The topic in the #llvm channel on IRC mentions:

APT repo temporary switched off. Check ML for the latest updates.

The ML announcement:

TL;DR: APT repo switched off due to excessive load / traffic

Recently we realized that APT repo generates almost 95% of I/O on llvm.org and more than 40% of network bandwidth alone. During last 2 weeks the main services on llvm.org (svn, git, bugzilla) had serious problems with overall connectivity.

We decided to temporary switch APT repo off to see if this would help. Stay tuned for updates.

Answer 2

Temp solution

Since the llvm server still down I'm using the clang provided in the Ubuntu package.

addons:
  apt:
    sources:
      - ubuntu-toolchain-r-test
      #- llvm-toolchain-precise-3.7
    packages:
      - libgnome-keyring-dev
      #- clang-3.7
      - clang

Full example: https://github.com/sqlectron/sqlectron-gui/blob/master/.travis.yml#L35

The only problem is that installs the version 3.4 or 3.5. Which looks be much slower than the latest one available on llvm package.

Answer 3

The llvm server is still down. However, a very good idea from the people behind rust (https://github.com/rust-lang/rust) is to solve this issue by using Docker.

See the .travis.yml file here: https://github.com/rust-lang/rust/commit/b1651fb4d2c0349ccca108b8d24210d688507936

You can find the travis build here: https://travis-ci.org/rust-lang/rust/builds/134924068

I incorporated Docker into my builds with excellent results, but it took me a couple of days to do so. You can find my approach here: https://github.com/fuzzylite/fuzzylite/tree/master in files /Dockerfile and /.travis.yml

and the results here: https://travis-ci.org/fuzzylite/fuzzylite/builds/137058927