[GitHub] KellenSunderland opened a new pull request #11461: [MXNET-606] Ppa retries in CI

[GitBox <gi...@apache.org>]

KellenSunderland opened a new pull request #11461: [MXNET-606] Ppa retries in CI
URL: https://github.com/apache/incubator-mxnet/pull/11461
 
 
   ## Description ##
   PPA installations in CI occasionally fail due to busy gpg servers.  We should add a retry mechanism to cover these failures.
   
   Example: http://jenkins.mxnet-ci.amazon-ml.com/blue/rest/organizations/jenkins/pipelines/incubator-mxnet/branches/master/runs/1072/nodes/62/log/?start=0
   
   ```bash
   + apt install -y software-properties-common
   WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
   Reading package lists...
   Building dependency tree...
   Reading state information...
   software-properties-common is already the newest version (0.96.20.7).
   0 upgraded, 0 newly installed, 0 to remove and 12 not upgraded.
   + add-apt-repository -y ppa:graphics-drivers
   gpg: keyring `/tmp/tmp7dr6xout/secring.gpg' created
   gpg: keyring `/tmp/tmp7dr6xout/pubring.gpg' created
   gpg: requesting key 1118213C from hkp server keyserver.ubuntu.com
   gpgkeys: key 2388FF3BE10A76F638F80723FCAE110B1118213C can't be retrieved
   gpg: no valid OpenPGP data found.
   gpg: Total number processed: 0
   gpg: keyserver communications error: keyserver helper general error
   gpg: keyserver communications error: unknown pubkey algorithm
   gpg: keyserver receive failed: unknown pubkey algorithm
   Failed to add key.
   ```
   
   ## Checklist ##
   ### Essentials ###
   Please feel free to remove inapplicable items for your PR.
   - [x] The PR title starts with [MXNET-$JIRA_ID], where $JIRA_ID refers to the relevant [JIRA issue](https://issues.apache.org/jira/projects/MXNET/issues) created (except PRs with tiny changes)
   - [x] Changes are complete (i.e. I finished coding on this PR)
   - [x] All changes have test coverage:
   - Unit tests are added for small changes to verify correctness (e.g. adding a new operator)
   - Nightly tests are added for complicated/long-running ones (e.g. changing distributed kvstore)
   - Build tests will be added for build configuration changes (e.g. adding a new build option with NCCL)
   - [x] Code is well-documented: 
   - For user-facing API changes, API doc string has been updated. 
   - For new C++ functions in header files, their functionalities and arguments are documented. 
   - For new examples, README.md is added to explain the what the example does, the source of the dataset, expected performance on test set and reference to the original paper if applicable
   - Check the API doc at http://mxnet-ci-doc.s3-accelerate.dualstack.amazonaws.com/PR-$PR_ID/$BUILD_ID/index.html
   - [x] To the my best knowledge, examples are either not affected by this change, or have been fixed to be compatible with this change
   

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