pytorch

75a5a46a - Retry sccache downloads (#87306)

Retry sccache downloads (#87306) This is meant to mitigate network flakiness like the one seen on [this build](https://github.com/pytorch/pytorch/actions/runs/3283124693/jobs/5407443872) which results in s3 refusing a connection and sccache failing to download Adding the retry at the workflow level instead of the curl level since as per the job it doesn't seem like the curl command was retried at all. It's possible that the specific html code returned during "Connection refused" isn't one of the ones the gets retried, or the retries don't show on the console and it needed a longer period of time between retries or that. Using the job level retry with a generous retry delay solves for both possibilities. Sample error log: ``` Run sudo curl --retry 3 https://s3.amazonaws.com/ossci-macos/sccache_v2.15 --output /usr/local/bin/sccache sudo curl --retry 3 https://s3.amazonaws.com/ossci-macos/sccache_v[2](https://github.com/pytorch/pytorch/actions/runs/3283124693/jobs/5407443872#step:6:2).15 --output /usr/local/bin/sccache sudo chmod +x /usr/local/bin/sccache echo "SCCACHE_BUCKET=ossci-compiler-cache-circleci-v2" >> "${GITHUB_ENV}" echo "SCCACHE_S[3](https://github.com/pytorch/pytorch/actions/runs/3283124693/jobs/5407443872#step:6:3)_KEY_PREFIX=${GITHUB_WORKFLOW}" >> "${GITHUB_ENV}" shell: /bin/bash -e {0} env: AWS_ACCESS_KEY_ID: *** AWS_SECRET_ACCESS_KEY: *** BUILD_ENVIRONMENT: macos-12-py3-x86-6[4](https://github.com/pytorch/pytorch/actions/runs/3283124693/jobs/5407443872#step:6:4) DEVELOPER_DIR: /Applications/Xcode_13.3.1.app/Contents/Developer CONDA_ENV: /Users/runner/work/_temp/conda_environment_3283124[6](https://github.com/pytorch/pytorch/actions/runs/3283124693/jobs/5407443872#step:6:6)93 CONDA_RUN: conda run -p /Users/runner/work/_temp/conda_environment_3283124693 --no-capture-output CONDA_BUILD: conda run -p /Users/runner/work/_temp/conda_environment_3283124693 conda-build CONDA_INSTALL: conda install -p /Users/runner/work/_temp/conda_environment_3283124693 % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 curl: ([7](https://github.com/pytorch/pytorch/actions/runs/3283124693/jobs/5407443872#step:6:7)) Failed to connect to s3.amazonaws.com port 443 after [8](https://github.com/pytorch/pytorch/actions/runs/3283124693/jobs/5407443872#step:6:8)6 ms: Connection refused Error: Process completed with exit code 7. ``` Pull Request resolved: https://github.com/pytorch/pytorch/pull/87306 Approved by: https://github.com/seemethere