[SERVER-3711] Record::touch with entireRecord true need to check bounds of mapped region Created: 29/Aug/11 Updated: 06/Dec/22 Resolved: 14/Sep/18 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | MMAPv1, Storage |
| Affects Version/s: | None |
| Fix Version/s: | None |
| Type: | Improvement | Priority: | Major - P3 |
| Reporter: | Eliot Horowitz (Inactive) | Assignee: | Backlog - Storage Execution Team |
| Resolution: | Done | Votes: | 0 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Issue Links: |
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| Assigned Teams: |
Storage Execution
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| Comments |
| Comment by Dwight Merriman [ 06/Dec/12 ] |
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so apparently the case that is tricky is on a drop() of some sort then the region we were looking at is no longer valid. given the filesystem will be doing some readahead, not sure what is optimal. |
| Comment by Eliot Horowitz (Inactive) [ 20/Dec/11 ] |
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The document can be changed such that reading the obj size is invalid. |
| Comment by Dwight Merriman [ 17/Dec/11 ] |
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why must it be checked aside: it is likely best to not page in a 8MB document ahead of time, but rather just part of it, so may want to stop at some point. for btree buckets we should be sure to touch both pages |