[LU-3787] replay-single test_90: wrong stripe: f2, uuid: lustre-OST0002_UUID

• Status: Resolved
• Project: Lustre
• Affects Version/s: Lustre 2.5.0
• Fix Version/s: Lustre 2.5.0
• Type: Bug
• Priority: Minor
• Reporter: James Nunez (Inactive)
• Assignee: James Nunez (Inactive)
• Resolution: Fixed
• Labels: revzfs

Description

This issue relates to the following test suite run: http://maloo.whamcloud.com/test_sets/b034018c-0756-11e3-bc50-52540035b04c.

The sub-test test_90 failed with the following error:

wrong stripe: f2, uuid: lustre-OST0002_UUID

From the client test log, we see

== replay-single test 90: lfs find identifies the missing striped file segments == 02:30:16 (1376731816)
Create the files
error opening /mnt/lustre/d90.replay-single/file: No such file or directory (2)
llapi_semantic_traverse: Failed to open '/mnt/lustre/d90.replay-single/file': No such file or directory (2)
error: getstripe failed for /mnt/lustre/d90.replay-single/file.
 replay-single test_90: @@@@@@ FAIL: wrong stripe: f2, uuid: lustre-OST0002_UUID 

So, the real error is that there is no file by the name of /mnt/lustre/d90.replay-single/file.

Look at the code for test 90, there is a missing "$" in front of "file" when calling getstripe. I'll upload a patch.

Issue Links

• is related to: LU-3809 replay-single test_58c does not clean...

Comments

[James Nunez (Inactive)]

Proposed patch is at:

http://review.whamcloud.com/7403

[Oleg Drokin]

So the patch, while good, does not address the actual issue of the file not having the striping requested (and the bug you fix is then in the error path).

Now, I wonder if what happened here is MDS is out of precreated objects for this OST and so it picks some other OST (we used to strictly enforce that requesting striping matches the actual one, but that was related some time ago, right Alex?)
If this is the case (needs to be verified in the code) then the fix might be to make the test to ensure MDS has big enough pool of preallocated tests before starting with the file creation.

[James Nunez (Inactive)]

Landed to master.