[LU-12210] Test failures associated with DNE index and stripe count randomization

• Type: Bug
• Resolution: Unresolved
• Priority: Minor
• Severity: 3
• Assignee: WC Triage
• Reporter: Patrick Farrell (Inactive)

Description

As a secondary change, the LU-11636 patch added MDS index and stripe count randomization to the test-framework in DNE configs.

The randomization introduced several high frequency failures (and, I suspect, other lower frequency failures), and was reverted at https://review.whamcloud.com/34705/

This ticket is to track these test failures, as the randomization change is fundamentally an improvement and is something we'd like to eventually put in.

The four failures that were specifically tracked to this change are:
sanity 208 (LU-12175)

sanity 133g (LU-12171)

recovery-small 107 (LU-12176)

recovery-small 134 (LU-11560)

 

There are some limited details in each of those tickets.  The failures varied, and did not appear to result from a single underlying bug.

Issue Links

• is related to: LU-11560 recovery-small test 134 fails with ‘rm failed’
• is related to: LU-12175 sanity test 208 fails with 'lease broken over recovery'
• is related to: LU-11636 t-f test_mkdir() does not support interop with non DNEII servers
• is related to: LU-12171 sanity test_133g: Timeout occurred after 161 mins
• is related to: LU-12176 recovery-small test 107 fails with 'test_107 failed with 1'