Monitor - reweight near full osd autonomicly » History » Version 1
Jessica Mack, 07/03/2015 08:33 PM
| 1 | 1 | Jessica Mack | h1. Monitor - reweight near full osd autonomicly |
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| 3 | h3. Summary |
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| 5 | Monitor can check osd whose device usage ratio is near full(default ratio 85%), and report "health |
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| 6 | err". There is usually one device near full while the others not, so monitor can simply decrease |
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| 7 | weight of the near full osd to migrate data to the other osds, which can delay the ratio increase. |
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| 8 | This is usefull for administor to extend cluster capcity, especially in a large scale osd cluster. |
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| 10 | h3. Owners |
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| 12 | * Min Chen (minchen@ubuntukylin.com) |
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| 13 | * Name (Affiliation) |
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| 14 | * Name |
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| 16 | h3. Interested Parties |
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| 18 | * Name (Affiliation) |
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| 19 | * Name (Affiliation) |
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| 20 | * Name |
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| 22 | h3. Current Status |
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| 24 | Administor can reweight a near full osd by command. If a series of near full osds |
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| 25 | occur in a long time, then the maintain work is heavy. |
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| 26 | Detailed Description |
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| 27 | The monitor get the log "near full" from the heavy load osd by LogMonitor, |
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| 28 | and we can let it to reweight osd. |
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| 30 | h3. Work items |
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| 32 | h4. Coding tasks |
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| 34 | # Task 1 |
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| 35 | # Task 2 |
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| 36 | # Task 3 |
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| 38 | h4. Build / release tasks |
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| 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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| 46 | # Task 1 |
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| 47 | # Task 2 |
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| 48 | # Task 3 |
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| 50 | h4. Deprecation tasks |
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| 52 | # Task 1 |
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| 53 | # Task 2 |
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| 54 | # Task 3 |