CephFS quota support discussion » History » Version 1
Jessica Mack, 07/01/2015 10:51 PM
| 1 | 1 | Jessica Mack | h1. CephFS quota support discussion |
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| 2 | |||
| 3 | h3. Summary |
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| 4 | |||
| 5 | This blueprint is come from http://wiki.ceph.com/Planning/Blueprints/Firefly/Cephfs_quota_support. |
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| 7 | h3. Owners |
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| 8 | |||
| 9 | * Yunchuan Wen (yunchuanwen@ubuntukylin.com) |
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| 10 | * Name (Affiliation) |
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| 11 | * Name |
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| 12 | |||
| 13 | h3. Interested Parties |
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| 14 | |||
| 15 | * Name (Affiliation) |
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| 16 | * Name (Affiliation) |
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| 17 | * Name |
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| 19 | h3. Current Status |
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| 21 | We have created a github pullrequest (https://github.com/ceph/ceph/pull/2241) for this feature. |
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| 23 | h3. Detailed Description |
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| 25 | 1. The quota information will be bound to directory in the namespace tree. |
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| 26 | 2. A file/directory could have multiple quota limit by its parent and ancestor directory. |
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| 27 | 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. |
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| 28 | 4. The MDS will be use to store quota information in directory's inode_t and push the rstat to client more active. |
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| 30 | h3. Work items |
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| 31 | |||
| 32 | h4. Coding tasks |
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| 33 | |||
| 34 | # Task 1 |
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| 35 | # Task 2 |
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| 36 | # Task 3 |
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| 37 | |||
| 38 | h4. Build / release tasks |
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| 39 | |||
| 40 | # Task 1 |
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| 41 | # Task 2 |
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| 42 | # Task 3 |
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| 44 | h4. Documentation tasks |
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| 45 | |||
| 46 | # Task 1 |
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| 47 | # Task 2 |
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| 48 | # Task 3 |
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| 49 | |||
| 50 | h4. Deprecation tasks |
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| 51 | |||
| 52 | # Task 1 |
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| 53 | # Task 2 |
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| 54 | # Task 3 |