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Type:
Task
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Resolution: Duplicate
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Priority:
Major - P3
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Affects Version/s: None
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Component/s: None
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Sharding EMEA
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3
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Implement an observer reacting to changes happening on the numOrphanDocs field of range deletion documents.
The objective is to keep in sync the persistent state with BalancerStatsRegistry's per-collection orphaned documents counters as follows:
| EVENT | Donor side | Recipient side |
| Migrated batch (numOrphanDocs increases) |
Increase in-memory orphans counter by num docs in batch | Increase in-memory orphans counter by num docs in batch |
| Migration commits (pending = false on donor) |
Increase in-memory orphans counter by numOrphanDocs | Decrease in-memory orphans counter by numOrphanDocs |
| Migration aborts (pending = false on recipient) |
///// | ///// |
| Range-deleter deletes batch | Decrease in-memory orphans counter by num of deleted docs | Decrease in-memory orphans counter by num of deleted docs |
- depends on
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- Closed
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- is depended on by
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- Closed
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