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Patch looks great!

Reviews applied: [44342]

Passed command: export OS='ubuntu:14.04' CONFIGURATION='--verbose' 
COMPILER='gcc' ENVIRONMENT='GLOG_v=1 MESOS_VERBOSE=1'; ./support/docker_build.sh

- Mesos ReviewBot


On March 7, 2016, 6:38 p.m., James Peach wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/44342/
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> 
> (Updated March 7, 2016, 6:38 p.m.)
> 
> 
> Review request for mesos, Jie Yu and Jiang Yan Xu.
> 
> 
> Bugs: MESOS-4828
>     https://issues.apache.org/jira/browse/MESOS-4828
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> Track sandbox directory usage by dynamically assigning XFS project
> quotas. We track a range of XFS project IDs, assigning a project ID
> and a project quota to each sandbox as it is created. When the task
> reaches the quota, writes will fail with EDQUOT, and the task will have
> an opportunity to handle that.
> 
> Quotas are not applied to volume resources since the isolator interface
> has no insight into the volume lifecycle. Thus it is not currently
> possible to accurately assign and reclaim project IDs.
> 
> If LOW is the lower bound of the project ID range and HIGH is the upper
> bound, you can show the currently allocated project quotas using the
> xfs_quota command:
> 
>   $ xfs_quota -x -c "report -a -n -L LOW -U HIGH"
> 
> To show the project ID assigned to the file PATH, use the xfs_io command:
> 
>   $ xfs_io -r -c stat PATH
> 
> 
> Diffs
> -----
> 
>   configure.ac a20382e8d425eb297492a6e6c2c75ea59be097c2 
>   docs/configuration.md 305ba2c801c2060db6dcb4ef83c1043aaa7d520c 
>   docs/mesos-containerizer.md 15fb5bdbe74e059614b8948108f32cd04b623305 
>   src/Makefile.am a41e95ddeb838fdebf4ced953c4a29181916e261 
>   src/slave/containerizer/mesos/containerizer.cpp 
> af3ff5750649497d8852b4761c78d4cae5455a02 
>   src/slave/containerizer/mesos/isolators/disk/xfs.hpp PRE-CREATION 
>   src/slave/containerizer/mesos/isolators/disk/xfs.cpp PRE-CREATION 
>   src/slave/flags.hpp feb095da4521f678c96f4cc53bdfda262d350388 
>   src/slave/flags.cpp 6e3fd69c06eefd40bc0e5c222ea72f34144c5534 
> 
> Diff: https://reviews.apache.org/r/44342/diff/
> 
> 
> Testing
> -------
> 
> Manual testing on Fedora 23 w/ XFS. Make check on Fedora and OS X.
> 
> 
> Thanks,
> 
> James Peach
> 
>

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