[#LU-2990] Failure on sanity test_24v: error in listing large dir

[LU-2990] Failure on sanity test_24v: error in listing large dir Created: 19/Mar/13 Updated: 17/Jul/13 Resolved: 09/Apr/13
Status:	Resolved
Project:	Lustre
Component/s:	None
Affects Version/s:	Lustre 2.4.0
Fix Version/s:	Lustre 2.4.0

Type:

Bug

Priority:

Blocker

Reporter:

Sarah Liu

Assignee:

nasf (Inactive)

Resolution:

Fixed

Votes:

Labels:

MB, zfs

Environment:

server and client: lustre-master build# 1328 RHEL6
fstype is zfs

Attachments:

debug

trace

Issue Links:

Duplicate
is duplicated by	~~LU-3119~~	System hang when running sanity test ...	Resolved
Related
is related to	~~LU-3605~~	Sanity test suite aborts in test 24v	Resolved

Severity:

Rank (Obsolete):

7284

Description

https://maloo.whamcloud.com/test_sessions/a84605f2-90c2-11e2-8311-52540035b04c

client console:

Lustre: DEBUG MARKER: == sanity test 24v: list directory with large files (handle hash collision, bug: 17560) == 10:15:47 (1363713347)
Lustre: DEBUG MARKER: cancel_lru_locks mdc start
Lustre: DEBUG MARKER: cancel_lru_locks mdc stop
Lustre: DEBUG MARKER: sanity test_24v: @@@@@@ FAIL: error in listing large dir
Lustre: 8261:0:(dir.c:463:ll_get_dir_page()) Page-wide hash collision: 5723140463788032
LustreError: 8261:0:(dir.c:594:ll_dir_read()) error reading dir [0x200000400:0x4:0x0] at 5723140463788032: rc -5
Lustre: 8261:0:(dir.c:463:ll_get_dir_page()) Page-wide hash collision: 5723140463788032
LustreError: 8261:0:(dir.c:594:ll_dir_read()) error reading dir [0x200000400:0x4:0x0] at 5723140463788032: rc -5

Comments

Comment by Keith Mannthey (Inactive) [ 19/Mar/13 ]

The error logs for sanity show ABORT and do not contain any logs for test24v. https://maloo.whamcloud.com/test_sets/aab26060-90c2-11e2-8311-52540035b04c

I do not seem to be able to search in maloo for sanity test_24v. It seems there is a test_24u and test_24w but no v.

Do you have more info you can share? How did you run the test?

Comment by Sarah Liu [ 20/Mar/13 ]

Here are the debug log and trace from the client. The system actually hung, so I abort the testing.

Comment by Jodi Levi (Inactive) [ 20/Mar/13 ]

Fan Yong,
Could you please have a look at this one?
Thank you!

Comment by Andreas Dilger [ 20/Mar/13 ]

We shouldn't get a hash collision with just 100k files. I wonder if something bad is happening with the hash mapping in the ZFS code?

Comment by nasf (Inactive) [ 30/Mar/13 ]

This is the patch:

http://review.whamcloud.com/#change,5894

Comment by Peter Jones [ 09/Apr/13 ]

Landed for 2.4

Generated at Sat Feb 10 01:30:00 UTC 2024 using Jira 9.4.14#940014-sha1:734e6822bbf0d45eff9af51f82432957f73aa32c.

[LU-2990] Failure on sanity test_24v: error in listing large dir Created: 19/Mar/13 Updated: 17/Jul/13 Resolved: 09/Apr/13