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(Updated March 29, 2016, 8:54 p.m.)

Review request for mesos, Jie Yu and Jiang Yan Xu.


Rebased and updated.

Bugs: MESOs-4828

Repository: mesos


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 (updated)

  src/Makefile.am 21e2965bb7cd9b88a5c787dd3efe0673c71cdc4f 
  src/slave/containerizer/mesos/isolators/xfs/disk.hpp PRE-CREATION 
  src/slave/containerizer/mesos/isolators/xfs/disk.cpp PRE-CREATION 
  src/slave/containerizer/mesos/isolators/xfs/utils.hpp PRE-CREATION 
  src/slave/containerizer/mesos/isolators/xfs/utils.cpp PRE-CREATION 
  src/slave/flags.hpp 9ee7f349cc2bb3fa76141645f4a06fad57664367 
  src/slave/flags.cpp fd9fbbaa911cc77a21574ba314c50ac226fa49ce 

Diff: https://reviews.apache.org/r/44948/diff/


Make check. Manual testing. Tests in subsequent patches.


James Peach

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