[SERVER-47236] Add the "The routing table cache" section to the sharding arch guide Created: 01/Apr/20  Updated: 29/Oct/23  Resolved: 05/May/20

Status: Closed
Project: Core Server
Component/s: Sharding
Affects Version/s: None
Fix Version/s: 4.7.0

Type: Task Priority: Major - P3
Reporter: Esha Maharishi (Inactive) Assignee: Blake Oler
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Backwards Compatibility: Fully Compatible
Sprint: Sharding 2020-04-20, Sharding 2020-05-04, Sharding 2020-05-18
Participants:

 Description   

Guidelines:

Should include

  • Which types of nodes does this exist on, and what is it used for on each?
  • When is the cache consulted? E.g., for routing requests on namespaces
  • When is the cache marked as stale?
  • How is it decided whether to do an incremental refresh or full refresh?
  • What are the operational caveats, e.g. are stale entries ever evicted or is there a memory limit on the cache size?

Code references

  • The CatalogCache class
  • Where the CatalogCache is informed of a StaleShardVersion


 Comments   
Comment by Githook User [ 05/May/20 ]

Author:

{'name': 'Blake Oler', 'email': 'blake.oler@mongodb.com', 'username': 'BlakeIsBlake'}

Message: SERVER-47236 Add the "The routing table cache" section to the sharding arch guide
Branch: master
https://github.com/mongodb/mongo/commit/98851c62a9e04513dfb908c25f8488931fc65894

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