[LU-11079] Control concurrent statahead instances Created: 09/Jun/18 Updated: 13/Aug/18 Resolved: 18/Jul/18 |
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| Status: | Resolved |
| Project: | Lustre |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | Lustre 2.12.0, Lustre 2.10.5 |
| Type: | Improvement | Priority: | Major |
| Reporter: | nasf (Inactive) | Assignee: | nasf (Inactive) |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | None | ||
| Issue Links: |
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| Rank (Obsolete): | 9223372036854775807 | ||||||||||||||||
| Description |
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It is found that if there are too many concurrent statahead instances, then related statahead RPCs may accumulate on the client import (for MDT) RPC lists (imp_sending_list/imp_delayed_list/imp_unreplied_lis), as to seriously affect the efficiency of spin_lock under the case of MDT overloaded or in recovery. Be as the temporarily solution, it is necessary to control the concurrent statahead instances. |
| Comments |
| Comment by Gerrit Updater [ 09/Jun/18 ] |
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Fan Yong (fan.yong@intel.com) uploaded a new patch: https://review.whamcloud.com/32690 |
| Comment by Gerrit Updater [ 18/Jul/18 ] |
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Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/32690/ |
| Comment by Peter Jones [ 18/Jul/18 ] |
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Landed for 2.12 |
| Comment by Gerrit Updater [ 01/Aug/18 ] |
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Minh Diep (mdiep@whamcloud.com) uploaded a new patch: https://review.whamcloud.com/32909 |
| Comment by Gerrit Updater [ 13/Aug/18 ] |
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John L. Hammond (jhammond@whamcloud.com) merged in patch https://review.whamcloud.com/32909/ |