[LU-2852] 2.1.4<->2.4.0 interop: sanity test_27u: FAIL: 2 objects created on OST-0

• Type: Bug
• Resolution: Fixed
• Priority: Blocker
• Fix Version/s: Lustre 2.4.0
• Affects Version/s: Lustre 2.4.0
• Labels: LB mq213

Environment

Lustre b2_1 client build: http://build.whamcloud.com/job/lustre-b2_1/176
Lustre master server build: http://build.whamcloud.com/job/lustre-master/1269
Distro/Arch: RHEL6.3/x86_64

• Severity: 3
• Assignee: Lai Siyao
• Reporter: Jian Yu

Description

Running sanity test 27u on Lustre b2_1 clients with master servers failed as follows:

== sanity test 27u: skip object creation on OSC w/o objects ============ 21:43:08 (1361511788)
CMD: client-19vm3 lctl set_param fail_loc=0x139
fail_loc=0x139
total: 1000 creates in 3.58 seconds: 279.20 creates/second
CMD: client-19vm3 lctl set_param fail_loc=0
fail_loc=0
 - unlinked 0 (time 1361511801 ; total 0 ; last 0)
total: 1000 unlinks in 4 seconds: 250.000000 unlinks/second
 sanity test_27u: @@@@@@ FAIL: 2 objects created on OST-0.  See /mnt/lustre/f27u.getstripe 

Maloo report: https://maloo.whamcloud.com/test_sets/ffcd3138-7cb3-11e2-a108-52540035b04c

Comments

[Peter Jones]

Landed for 2.4

[Lai Siyao]

patch for master is on http://review.whamcloud.com/#change,5670.

Note, to test 2.1 <-> 2.4 interop, this patch should be cherry-picked to 2.1 code.

[Lai Siyao]

This is not an interop test failure, because sanity 27u can't pass on master either (but it's in ALWAYS_EXCEPT list).

Running sanity 27u alone will always pass, and the cause is that subtest 27p,27r will left two files in that test directory, and these two files are striped on all OST, finally the check for stripe fails.

A simple fix is to clean up test directory before sanity 27u, I'll commit a fix later.