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Ceph Security hardening

Summary

This blueprint is come from http://wiki.ceph.com/Planning/Blueprints/Firefly/Cephfs_quota_support.

Owners

Interested Parties

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Current Status

We have created a github pullrequest (https://github.com/ceph/ceph/pull/2241) for this feature.

Detailed Description

  1. The quota information will be bound to directory in the namespace tree.
  2. A file/directory could have multiple quota limit by its parent and ancestor directory.
  3. When application create a file or directory or expand the file size, the client will find all the ancestor directory which have be bound a quota information, and compare the directory's quota and rstat. If quota is excceded, routine will return -EDQUOT.
  4. The MDS will be use to store quota information in directory's inode_t and push the rstat to client more active.

Work items

Coding tasks

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Build / release tasks

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Documentation tasks

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Deprecation tasks

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