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(Updated April 30, 2018, 3:35 p.m.) Review request for mesos, Xiaojian Huang, Gilbert Song, Jason Lai, and Jie Yu. Changes ------- Rebase to revive the patch. Bugs: MESOS-6451 https://issues.apache.org/jira/browse/MESOS-6451 Repository: mesos Description ------- Added an hourly timer for `slave/docker_containerizer/pull`. Diffs (updated) ----- src/slave/containerizer/docker.hpp 6bdf4c7f60384473927de437a061fafe94170557 src/slave/containerizer/docker.cpp a4c9c10e91e75f406329cbb2086f39b549cbeed0 Diff: https://reviews.apache.org/r/53105/diff/5/ Changes: https://reviews.apache.org/r/53105/diff/4-5/ Testing ------- Ran `mesos-execute` with a docker image and docker containerizer, observed the following metrics: ``` curl -s localhost:5051/metrics/snapshot | jq . | grep pull "containerizer/docker/pull_ms/p999": 26209.36173824, "containerizer/docker/pull_ms/p90": 21036.405248, "containerizer/docker/pull_ms/p9999": 26256.388615424, "containerizer/docker/pull_ms/p50": 135.570944, "containerizer/docker/pull_ms/max": 26261.613824, "containerizer/docker/pull_ms/p95": 23649.009536, "containerizer/docker/pull_ms/min": 103.215872, "containerizer/docker/pull_ms/p99": 25739.0929664, "containerizer/docker/pull_ms": 26261.613824, "containerizer/docker/pull_ms/count": 3 ``` Thanks, Zhitao Li