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Type: Task
Resolution: Fixed
Priority: Major - P3
Fix Version/s: 4.7.0
Affects Version/s: None
Component/s: Sharding
Labels:
- PM-1645-Milestone-2

Backwards Compatibility:
Fully Compatible
Sprint:
Sharding 2020-08-10
Confidence Status:
None
Work Order:
3
CAR Domain/s:
None

Aha! Reference:
None
Tracking Level:
None
Risk Status:
None
Exec Notes:
None
Goal Name(s):
None
Goal Link:
None

Introduce a new class called say ComparableDatabaseVersion, which allows to compare two database versions that have different epoch. This class will be use as clock for the DatabaseCache (introduced by ~~SERVER-48992~~) to make it causally consistent. In particular it will be use to advance the cached database entry's time as a result of a reception of StaleDatabaseVersion.

causes

SERVER-51390 Always refresh database cache on StaleDatabaseVersion

Closed

depends on

SERVER-48992 Implement database cache on top of ReadThroughCache

Closed

SERVER-49189 Make the ReadThroughCache lookup send the old entry state to the lookup function

Closed

split from

SERVER-48991 Make CatalogCache causally consistent

Closed

Assignee:: Tommaso Tocci
Reporter:: Tommaso Tocci
Participants:: Tommaso Tocci
Votes:: 0 Vote for this issue
Watchers:: 1 Start watching this issue

Created:: Jul 24 2020 10:06:29 AM UTC
Updated:: Oct 29 2023 10:05:18 PM UTC
Resolved:: Aug 06 2020 07:03:34 PM UTC
Confidence Status Last Update:: 30/Jul/20 9:38 AM

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