[LU-4405] stat degradation (interoperability bug after landing a LU-3240) Created: 20/Dec/13 Updated: 28/May/14 Resolved: 16/Jan/14 |
|
| Status: | Resolved |
| Project: | Lustre |
| Component/s: | None |
| Affects Version/s: | Lustre 2.4.1, Lustre 2.5.0 |
| Fix Version/s: | Lustre 2.6.0, Lustre 2.5.2 |
| Type: | Bug | Priority: | Blocker |
| Reporter: | Alexey Lyashkov | Assignee: | Cliff White (Inactive) |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | mn4, patch | ||
| Environment: |
any client with http://review.whamcloud.com/#/c/6460/8/ patch landed. |
||
| Issue Links: |
|
||||||||
| Severity: | 3 | ||||||||
| Rank (Obsolete): | 12094 | ||||||||
| Description |
|
Cray reported an stat performance degradation in master with older servers (pre < 2.4). it's easy replicated with statmany tool, as now it's have only ~600 stats per second for same files. after bisect search by Cray Patrick Farrell: http://review.whamcloud.com/#/c/6460/8/lustre/mdc/mdc_locks.c Patrick Farrell: That's the patch that my bisection suggests is the problem after looking to logs - i see more getattr rpc's as should be in such situation. |
| Comments |
| Comment by Alexey Lyashkov [ 20/Dec/13 ] |
|
xyratex bug-id: MRP-1583, LELUS-206 |
| Comment by Alexey Lyashkov [ 20/Dec/13 ] |
| Comment by Cliff White (Inactive) [ 06/Jan/14 ] |
|
Will monitor this, thanks |
| Comment by Bob Glossman (Inactive) [ 14/Jan/14 ] |
|
backport to b2_5: |
| Comment by Jodi Levi (Inactive) [ 16/Jan/14 ] |
|
Oleg will be landing the b2_5 patch soon. Master patch has landed. |
| Comment by Cory Spitz [ 07/Apr/14 ] |
|
FYI, the b2_5 patch seems to have been forgotten. |
| Comment by Jodi Levi (Inactive) [ 07/Apr/14 ] |
|
I am checking on getting this patch landed. Oleg is at LUG so the response may be a bit slower than normal, but if this patch can't land for some reason this week, I will reopen the ticket. |
| Comment by Andreas Dilger [ 28/May/14 ] |
|
Patch landed for 2.5.2. |