T174044: Deploy MCR storage layer

Phabricator Link	T174044
Status	resolved
Priority	normal (orange)
Author	daniel (Daniel Kinzler)
Owner	daniel (Daniel Kinzler)
Projects	CPT Initiatives (MCR) Core Platform Team Workboards (Done with CPT) DBA (Blocked external/Not db team) Epic Multi-Content-Revisions (Done) Multimedia (Untriaged) Structured Data Engineering (Monitoring) User-Addshore (Watching 👀) Wikidata (monitoring)
Subtasks	T196585: Deploy some MCR related patches on test / group0 for an extended period, T198308: Enable MCR migration stage "write both, read new" on live systems, T198561: Make "write both, read new" the default MCR migration stage for fresh MediaWiki installs / for CI, T205808: Ensure Revision::getRevisionText continues to function with MCR read-new mode, T174023: Implement MCR storage layer, T183488: MCR schema migration stage 2: populate new fields
Parent Tasks	T174043: Deploy Multi-Content Revisions
Tags

Related Gerrit Changes:

Change	Subject	Status	Owner	Created	Last Modified	Project
440128	wgMultiContentRevisionSchemaMigrationStage SCHEMA_COMPAT_OLD	MERGED	Addshore	13 Jun 2018	16 Jul 2018	operations/mediawiki-config