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(Updated Oct. 29, 2018, 10:33 p.m.) Review request for mesos, Gilbert Song, James Peach, and Joseph Wu. Bugs: MESOS-7474 https://issues.apache.org/jira/browse/MESOS-7474 Repository: mesos Description ------- Previously, missing cache files could lead to task launch failures. This patch introduces validation of cache files which happens each time a downloaded cache entry is requested via the `get()` method. If validation fails, `get()` returns `None()`, so that the fetcher retries downloading URI. Currently, we only check the existence of the cache file during validation. Diffs (updated) ----- src/slave/containerizer/fetcher.cpp e848c86261b75e5549e80276541e5932162fc012 src/slave/containerizer/fetcher_process.hpp 56ed6e5455b7d23b4ce84873fe6734b4213df691 Diff: https://reviews.apache.org/r/69171/diff/2/ Changes: https://reviews.apache.org/r/69171/diff/1-2/ Testing ------- 1. sudo make check (Fedora 25) 2. internal CI Thanks, Andrei Budnik