[LU-11874] conf_param brw_size seems broken Created: 18/Jan/19 Updated: 08/Feb/19 Resolved: 08/Feb/19 |
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| Status: | Resolved |
| Project: | Lustre |
| Component/s: | None |
| Affects Version/s: | Lustre 2.12.0 |
| Fix Version/s: | None |
| Type: | Bug | Priority: | Trivial |
| Reporter: | Stephane Thiell | Assignee: | Joseph Gmitter (Inactive) |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | None | ||
| Environment: |
CentOS 7.6 |
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| Severity: | 3 |
| Rank (Obsolete): | 9223372036854775807 |
| Description |
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No big deal but I just noticed that: lctl conf_param fsname-OST*.obdfilter.brw_size=16 from the Lustre manual, seems broken. It doesn't change the brw_size values, even after remounting the OSTs. using echo 16 > /proc/fs/lustre/obdfilter/*${ost}*/brw_size
or lctl set_param obdfilter.fir-OST*.brw_size=16 just works fine to change the values temporarily. We use tuning.conf from shine which is applied at mount time so it doesn't really affect us but it might affect others. This is with 2.12.0. |
| Comments |
| Comment by Andreas Dilger [ 18/Jan/19 ] |
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I don't think you can use wildcards with conf_param. It would be better to use lctl set_param -P obdfilter.*.brw_size=16. |
| Comment by James A Simmons [ 18/Jan/19 ] |
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Yep. If you want to use wildcards you need to use lctl set_param -P obdfilter.*.brw_size=16. |
| Comment by Stephane Thiell [ 18/Jan/19 ] |
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Ah, thanks much! |
| Comment by Andreas Dilger [ 18/Jan/19 ] |
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Joe, I think this one is for you. |
| Comment by Gerrit Updater [ 06/Feb/19 ] |
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Joseph Gmitter (jgmitter@whamcloud.com) uploaded a new patch: https://review.whamcloud.com/34193 |
| Comment by Gerrit Updater [ 08/Feb/19 ] |
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Joseph Gmitter (jgmitter@whamcloud.com) merged in patch https://review.whamcloud.com/34193/ |
| Comment by Joseph Gmitter (Inactive) [ 08/Feb/19 ] |
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The documentation patch has landed to the doc branch. |