[LU-4203] Test failure sanity test_133d: crossdir_rename_size error

• Type: Bug
• Resolution: Duplicate
• Priority: Minor
• Affects Version/s: Lustre 2.6.0
• Labels: zfs
• Severity: 3
• Assignee: Jinshan Xiong (Inactive)
• Reporter: Maloo

Description

This issue was created by maloo for Nathaniel Clark <[e-mail]>

This issue relates to the following test suite run:
http://maloo.whamcloud.com/test_sets/84c21dd4-43ee-11e3-8599-52540035b04c
http://maloo.whamcloud.com/test_sets/05b9feb4-4027-11e3-9aa8-52540035b04c

The sub-test test_133d failed with the following error:

sanity.sh: line 8555: [: : integer expression expected
crossdir_rename_size error

Info required for matching: sanity 133d

Issue Links

• is related to: LU-5490 sanity test_133d: FAIL: samedir_rename_size error

Comments

[Andreas Dilger]

Closing this as a duplicate of LU-5490 so that we only track a single issue and that bug gets more attention.

[Bob Glossman (Inactive)]

another on master in review-zfs-part-1:
https://testing.hpdd.intel.com/test_sets/7e829b86-88cc-11e5-9053-5254006e85c2

[James Nunez (Inactive)]

Another instance on review-zfs for master:
2015-09-15 22:10:10 - https://testing.hpdd.intel.com/test_sets/b9bac8ee-5c36-11e5-aa2b-5254006e85c2
2015-10-21 15:27:24 - https://testing.hpdd.intel.com/test_sets/1f89e264-7829-11e5-9072-5254006e85c2
2016-01-09 09:54:51 - https://testing.hpdd.intel.com/test_sets/70a9d6d6-b6fe-11e5-a93d-5254006e85c2

[Bob Glossman (Inactive)]

another on master: (zfs)
https://testing.hpdd.intel.com/test_sets/d241dbb2-3cc1-11e5-8aeb-5254006e85c2

[James Nunez (Inactive)]

This test has failed abut five times in the past month on master:
2015-05-04 17:54:09 - https://testing.hpdd.intel.com/test_sets/5b002ec0-f31d-11e4-bbef-5254006e85c2
2015-05-11 19:24:57 - https://testing.hpdd.intel.com/test_sets/ffae7506-f883-11e4-94ea-5254006e85c2
2015-05-13 04:51:16 - https://testing.hpdd.intel.com/test_sets/b06283e2-f9ab-11e4-bd86-5254006e85c2
2015-05-19 18:30:38 - https://testing.hpdd.intel.com/test_sets/21cc903c-fee7-11e4-a4ed-5254006e85c2
2015-06-03 09:12:27 - https://testing.hpdd.intel.com/test_sets/a46c8348-0a5a-11e5-b9ed-5254006e85c2

[Andreas Dilger]

In more recent test failures I've seen in the test output that the directory size as reported to "stat" does not match the size reported via the rename_stats file:

mdt.lustre-MDT0000.rename_stats=clear
source rename dir size: 512
target rename dir size: 16K
CMD: shadow-21vm4 /usr/sbin/lctl get_param mdt.*.rename_stats
mdt.lustre-MDT0000.rename_stats=
rename_stats:
- snapshot_time:  1417878009.516837
- crossdir_src   
      512bytes: { sample:   1, pct: 100, cum_pct: 100 }
- crossdir_tgt   
      512bytes: { sample:   1, pct: 100, cum_pct: 100 }
CMD: shadow-21vm4 /usr/sbin/lctl get_param mdt.*.rename_stats
CMD: shadow-21vm4 /usr/sbin/lctl get_param mdt.*.rename_stats
CMD: shadow-21vm4 /usr/sbin/lctl get_param mdt.*.rename_stats
 sanity test_133d: @@@@@@ FAIL: crossdir_rename_size error  

and

mdt.lustre-MDT0000.rename_stats=clear
source rename dir size: 64K
target rename dir size: 16K
CMD: shadow-15vm8 /usr/sbin/lctl get_param mdt.*.rename_stats
mdt.lustre-MDT0000.rename_stats=
rename_stats:
- snapshot_time:  1417662080.951886
- crossdir_src   
      32KB: { sample:   1, pct: 100, cum_pct: 100 }
- crossdir_tgt   
      512bytes: { sample:   1, pct: 100, cum_pct: 100 }
CMD: shadow-15vm8 /usr/sbin/lctl get_param mdt.*.rename_stats
CMD: shadow-15vm8 /usr/sbin/lctl get_param mdt.*.rename_stats
CMD: shadow-15vm8 /usr/sbin/lctl get_param mdt.*.rename_stats
 sanity test_133d: @@@@@@ FAIL: crossdir_rename_size error  

This is probably related to some internal implementation details of osd-zfs. or how it interacts with the mdt rename stats code. While it would generate somewhat confusing stats and causes testing failures, it doesn't appear to be a defect that would affect actual usage.

[Andreas Dilger]

I suspect something strange with the /proc output when running on ZFS.