[DOCS-3373] Chunk migrations can build indexes Created: 08/May/14 Updated: 16/Mar/15 Resolved: 23/Sep/14 |
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| Status: | Closed |
| Project: | Documentation |
| Component/s: | manual |
| Affects Version/s: | None |
| Fix Version/s: | v1.3.11 |
| Type: | Bug | Priority: | Major - P3 |
| Reporter: | Alexander Komyagin | Assignee: | Andrew Aldridge |
| Resolution: | Done | Votes: | 0 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Environment: |
https://github.com/mongodb/docs/edit/master/source/core/sharding-balancing.txt |
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| Issue Links: |
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| Days since reply: | 9 years, 21 weeks, 1 day ago | ||||||||||||
| Description |
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The first step in our migration logic is to build all missing indexes on the TO shard (compared to the FROM shard): https://github.com/mongodb/mongo/blob/r2.6.1/src/mongo/s/d_migrate.cpp#L1662 This feature allows our users to add new shards and they don't have to worry about building indexes there manually. It's important to note that the index builds are propagated to secondaries. We should specifically document this feature, otherwise the implications can be unexpected and.. surprising |
| Comments |
| Comment by Githook User [ 23/Sep/14 ] |
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Author: {u'username': u'i80and', u'name': u'Andrew Aldridge', u'email': u'i80and@foxquill.com'}Message: Signed-off-by: Sam Kleinman <samk@10gen.com> |