Details
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Task
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Resolution: Gone away
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Major - P3
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None
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None
Description
Description
If test commands are enabled, $merge can now be run against a secondary of a replica set. It runs the read part of the operation locally but targets any insert, update, or DDL operations to the replica set primary. No attempt is made to keep our view of the primary fresh during execution of the $merge. No attempt is made to recover if a stepdown occurs or the primary becomes unavailable during the course of the $merge. (In a later commit this will no longer be gated behind test commands, once the project is finished out).
Description of Linked Ticket
null
Scope of changes
Impact to Other Docs
MVP (Work and Date)
Resources (Scope or Design Docs, Invision, etc.)
Attachments
Issue Links
- documents
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SERVER-46137 Implement ReplicaSetNodeProcessInterface methods needed for $merge
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- Closed
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- is related to
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DOCS-13479 Investigate changes in SERVER-45974: Enable $merge/$out on secondaries in non-test configurations
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- Closed
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