[LU-5113] add striped dir feature flag to lustre_mdt_attrs::lma_incompat Created: 28/May/14 Updated: 30/May/14 Resolved: 30/May/14 |
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| Status: | Resolved |
| Project: | Lustre |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | Lustre 2.6.0 |
| Type: | Bug | Priority: | Blocker |
| Reporter: | Di Wang | Assignee: | Di Wang |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | None | ||
| Severity: | 3 |
| Rank (Obsolete): | 14099 |
| Description |
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Add striped dir feature flag to lustre_mdt_attrs::lma_incompat, so when MDT is downgraded, striped dir will not be able to be accessed by old MDT. |
| Comments |
| Comment by Di Wang [ 28/May/14 ] |
| Comment by Andreas Dilger [ 28/May/14 ] |
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Hmm, would this already be handled by the LMV magic being different in the new layout? |
| Comment by Di Wang [ 28/May/14 ] |
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Yes, but only for new client, not for 2.5 client. I did not check whether those legacy LMV code (<2.6) can handle this well. So I thought we better to stop the old MDT touching these striped dir to avoid trouble? |
| Comment by Jodi Levi (Inactive) [ 30/May/14 ] |
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Patch landed to Master. Please reopen ticket if more work is needed. |