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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/21316/
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(Updated June 9, 2014, 3:56 p.m.)
Review request for mesos and Benjamin Hindman.
Changes
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Fixed a few whitespace problems.
Bugs: MESOS-336
https://issues.apache.org/jira/browse/MESOS-336
Repository: mesos-git
Description
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The first cut at fetcher caching. See MESOS-336 JIRA for explanation for this
approach: keep the cache info in the MesosContainerizerProcess in the save,
leverage actor single-threadedness to deal with concurrency issues without head
ache.
Features so far:
- If URI flag "fetched_externally" (default: false) is set, the fetcher does
what it did in Mesos 0.18 and before.
- If URI flag "cached" (default: false) is not set, the fetcher also fetches
every time as in Mesos 0.18 and before.
- If URI flag "cached" is set, the UIR is only fetched once and all subsequent
fetch attempts copy from the cache file.
- URIs are cached separately per framework (ID).
- Recovery is implemented by simply wiping the entire cache.
- GC for cache files. Global flag sets lifetime after last use. Default is 1
hour.
Potential future features:
- symlinks instead of copying
- extraction directly from URI, without cache file
- combine that with symlinks
- Refreshing, explicit cache invalidation
- ...
Diffs (updated)
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include/mesos/mesos.proto 62f69d2
include/mesos/scheduler.hpp d224945
src/Makefile.am 4a3f2e1
src/launcher/fetcher.cpp c4425eb
src/local/local.cpp 5d26aff
src/slave/constants.hpp ace4590
src/slave/constants.cpp 51f65bb
src/slave/containerizer/mesos_containerizer.hpp 1f5908a
src/slave/containerizer/mesos_containerizer.cpp 1438024
src/slave/containerizer/mesos_fetcher.hpp PRE-CREATION
src/slave/containerizer/mesos_fetcher.cpp PRE-CREATION
src/slave/flags.hpp 15e5b64
src/slave/slave.hpp 34687e5
src/slave/slave.cpp 643c088
src/tests/containerizer_tests.cpp 8ea7974
src/tests/fetcher_tests.cpp PRE-CREATION
src/tests/slave_tests.cpp 2c8f183
Diff: https://reviews.apache.org/r/21316/diff/
Testing
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Tests have been written, have been run successfully, and are included in the
patch.
Thanks,
Bernd Mathiske
