[LU-4573] sanityn test_76 fails on DNE (512 != 2048 open files)

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.6.0, Lustre 2.5.2
• Affects Version/s: Lustre 2.6.0
• Labels: dne
• Severity: 3
• Assignee: Jian Yu
• Reporter: Maloo

Description

This issue was created by maloo for Di Wang <[e-mail]>

This issue relates to the following test suite run: http://maloo.whamcloud.com/test_sets/2397a63c-8b65-11e3-a5ce-52540035b04c.

It seems the test needs to fix with striped dir.
The sub-test test_76 failed with the following error:

512 != 2048 open files

Info required for matching: sanityn 76

Issue Links

• is related to: LU-3531 DNE2: striped directory

Comments

[Jodi Levi (Inactive)]

Patch landed to Master.

[Andreas Dilger]

Swapnil, can you please investigate this test failure and see why it is not passing?

[Andreas Dilger]

I've pushed http://review.whamcloud.com/10107 as an untested attempt to fix this bug, which is a 2.6 blocker. Hopefully it will pass, but if not someone else will need to finish it off.

[Girish Shilamkar (Inactive)]

Yes, Swapnil will take it up.

[Andreas Dilger]

Girish, will you be able to look at this? I think it is a simple test script problem when running in DNE mode because it is not checking all the MDTs for open files.

[Andreas Dilger]

Girish, could you please take a look at this. The test needs to be updated to add up the open count from all of the MDTs if the directory is created with multiple stripes. It should be possible to just use "do_facets" and "calc_sum" to get the open count from all MDTs and add them up. In the non-DNE case, or without striped directories the count on the other MDTs will be zero.

[Andreas Dilger]

Looks like it needs to get the open file count from all of the stripes' MDTs.