[SERVER-36662] Delete UpdateNotifier Created: 14/Aug/18  Updated: 29/Oct/23  Resolved: 29/Aug/18

Status: Closed
Project: Core Server
Component/s: Querying, Storage
Affects Version/s: None
Fix Version/s: 4.1.3

Type: Improvement Priority: Major - P3
Reporter: David Storch Assignee: David Storch
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
depends on SERVER-16857 Remove PlanStage::invalidate() Closed
Backwards Compatibility: Fully Compatible
Sprint: Query 2018-08-27, Query 2018-09-10
Participants:

 Description   

The UpdateNotifier is a callback mechanism that is used as part of the RecordStore::updateRecord() storage engine API method. It was necessary in previous versions of MongoDB to allow storage engines that do not support document-level concurrency to notify the query execution layer that a document associated with a RecordId is being mutated.

The work in SERVER-16857 is removing the delivery of update/delete notifications to the query execution system, which means that the UpdateNotifier is no longer necessary.



 Comments   
Comment by Githook User [ 29/Aug/18 ]

Author:

{'name': 'David Storch', 'email': 'david.storch@10gen.com', 'username': 'dstorch'}

Message: SERVER-36662 Delete UpdateNotifier.

The UpdateNotifier was a callback mechanism for issuing
MMAPv1 diskloc invalidations. It does nothing now that
MMAPv1 invalidations are themselves deleted.
Branch: master
https://github.com/mongodb/mongo/commit/78901fd754958d57b914e7209e702eec53543d81

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