config.sh
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Overstriping - more than stripe per O... | Resolved |
[LU-1658] Review consistantly fails when running with 300 osts - wide stripe testing. Created: 23/Jul/12 Updated: 09/Oct/21 Resolved: 09/Oct/21 |
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| Status: | Resolved |
| Project: | Lustre |
| Component/s: | None |
| Affects Version/s: | Lustre 2.3.0 |
| Fix Version/s: | None |
| Type: | Bug | Priority: | Minor |
| Reporter: | Chris Gearing (Inactive) | Assignee: | WC Triage |
| Resolution: | Duplicate | Votes: | 0 |
| Labels: | None | ||
| Attachments: |
config.sh
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| Severity: | 3 | ||||||||
| Rank (Obsolete): | 10456 | ||||||||
| Description |
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When running reviews with 300 osts several test reliably fail. Sanity: test_27n (Out of disk space so probably a test issue rather than lustre issue) Results here: Note these results where found during my development testing of autotest but are so repeatable I'm convinced they are real. If wide-stripe testing is not part of production autotest when this is debug please ask for my help (chris) |
| Comments |
| Comment by Peter Jones [ 23/Jul/12 ] |
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Yujian could you please look into this one? Thanks Peter |
| Comment by Jian Yu [ 25/Jul/12 ] |
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Hi Chris, From the test outputs and MDT debug logs, I found the "large_xattr" option was not specified while formatting the MDT. After http://review.whamcloud.com/#change,2907 was landed on master branch, the cfg/local.sh was changed a lot, and the variable used to specify arguments for "--mkfsoptions" on MDT is MDS_FS_MKFS_OPTS. So, in autotest_config.sh, the following variable should be specified instead of MDSOPT: MDS_FS_MKFS_OPTS="-O large_xattr" The test session you sent to me by email had the "large_xattr" option specified but the journal size was too big: |
| Comment by Chris Gearing (Inactive) [ 25/Jul/12 ] |
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I've fixed up the code so that it makes use of local.sh and ncli.sh from the lustre sources itself, much less is now defined by autotest. I fear this may throw up new issues but it is certainly a move forwards |
| Comment by Chris Gearing (Inactive) [ 26/Jul/12 ] |
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So these results use the local.sh and ncli.sh from the lustre source itself. I've attached the config file used, I believe this means that if a mount option is incorrect it needs to be changed in the source - i.e. autotest no longer produces mount the options. The errors seem to be the same; https://maloo.whamcloud.com/test_sessions/6aeba286-d73e-11e1-ab1c-52540035b04c To be clear autotest is not specifying any mount options, all mount options are within Lustre and perhaps a change is required there, perhaps mkfs_opts() needs to be updated. |
| Comment by Jian Yu [ 01/Aug/12 ] |
Hi Chris, In the above test session, the "large_xattr" option was still not specified while formatting the MDT. Could you please specify the following variable in autotest_config.sh? MDS_FS_MKFS_OPTS="-O large_xattr" Thanks. |
| Comment by Chris Gearing (Inactive) [ 02/Aug/12 ] |
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This is a lustre issue surely. If this flag is required then should mkfs_opts not add the flag. That is the point of mkfs_opts in the test framework. local.cfg does not contain any MKFS_OPTS. |
| Comment by Jian Yu [ 03/Aug/12 ] |
Currently the large xattr feature (wide striping) is disabled by default in Lustre. To test this feature, the "-O large_xattr" option needs to be set on MDT either with --mkfsoptions at format time or via tune2fs.
In cfg/local.sh: # Arguments for "--mkfsoptions" shall be specified with these
# variables:
#
# - <fstype>_MKFS_OPTS
# - <facet_type>_FS_MKFS_OPTS
#
<~snip~>
MDS_FS_MKFS_OPTS=${MDS_FS_MKFS_OPTS:-}
Before we decide to enable the feature by default in Lustre, we have to explicitly specify MDS_FS_MKFS_OPTS="-O large_xattr" to test the feature. |
| Comment by Peter Jones [ 09/Aug/12 ] |
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Lowering priority because the testing that triggered these failures is not rolled into production yet and so the issue will not affect release testing. |
| Comment by Jian Yu [ 04/Sep/12 ] |
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The next step for this ticket is to make autotest perform the wide stripe testing with MDS_FS_MKFS_OPTS="-O large_xattr" on a specific test cluster (not to disturb the normal review/full testings). So, we need the help from Chris to do this. And after new results are reported, I'll vet them. |
| Comment by Andreas Dilger [ 09/Oct/21 ] |
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Fixed as part of patch https://review.whamcloud.com/28425 " |