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Roadmap Storage layer implementation plan Work packages Development status RFC design document Annual Plan - SDC - Segment 1: Database Integration

MCR-related Gerrit changes (all) MCR-related Gerrit changes (open) Phabricator Workboard MCR-related Phabricator tasks (all) MCR-related Phabricator tasks (open)

Phabricator Task List

Pert Chart

Dependency Graph

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Phabricator Link	Wiki Link	Status	Priority	Author	Owner	Tags	Projects	Subtasks	Parent Tasks
T107595	T107595: [RFC] Multi-Content Revisions	resolved	normal (orange)		brion (Brion Vibber)				T174022: Implement multi-content revisions
T117279	T117279: [EPIC] Core should provide inline diffs as well as side by side (Move InlineDifferenceEngine into core / remove MobileDiff)	open	normal (orange)			Phab:T194830			T202763: Update extensions which customize content diff rendering
T159708	T159708: Deploy WikibaseMediaInfo extension to production	resolved	normal (orange)		Jdforrester-WMF (James D. Forrester)	Phab:T194729			T194750: Deploy Structured Data on Commons baseline
T161671	T161671: Compacting the revision table	open	normal (orange)			Phab:T167246
T167246	T167246: Refactor "user" & "user_text" fields into "actor" reference table	open	needs triage (violet)		Anomie (Brad Jorsch)	Phab:T205353			T161671: Compacting the revision table
T174022	T174022: Implement multi-content revisions	open	normal (orange)			Phab:T107595, Phab:T174023, Phab:T174032, Phab:T174033, Phab:T174037, Phab:T185793, Phab:T187935, Phab:T189220, Phab:T189808, Phab:T190066, Phab:T196087, Phab:T198297, Phab:T198492, Phab:T209044, Phab:T209878			T174043: Deploy Multi-Content Revisions
T174023	T174023: Implement MCR storage layer	resolved	normal (orange)		daniel (Daniel Kinzler)	Phab:T174024, Phab:T194015, Phab:T194034, Phab:T198413			T174022: Implement multi-content revisions T174044: Deploy MCR storage layer
T174024	T174024: Implement MCR revision retrieval interface	resolved	normal (orange)		daniel (Daniel Kinzler)	Phab:T174025, Phab:T174028, Phab:T196653			T174023: Implement MCR storage layer T174038: Initial implementation of MCR page update interface
T174025	T174025: Implement MCR revision retrieval legacy version	resolved	normal (orange)		daniel (Daniel Kinzler)				T174024: Implement MCR revision retrieval interface T174032: Make relevant API modules aware of MCR
T174028	T174028: Finalize database schema for MCR content meta-data	resolved	needs triage (violet)		daniel (Daniel Kinzler)				T174024: Implement MCR revision retrieval interface T174030: Implement DB schema migration tools for MCR T174045: DB schema migration for MCR
T174030	T174030: Implement DB schema migration tools for MCR	resolved	normal (orange)		Anomie (Brad Jorsch)	Phab:T174028, Phab:T182678, Phab:T182682			T174038: Initial implementation of MCR page update interface T174045: DB schema migration for MCR T183488: MCR schema migration stage 2: populate new fields
T174031	T174031: MCR: Include all slots in XML dumps	open	normal (orange)		daniel (Daniel Kinzler)	Phab:T198706, Phab:T199121
T174032	T174032: Make relevant API modules aware of MCR	open	normal (orange)		Anomie (Brad Jorsch)	Phab:T174025, Phab:T198099, Phab:T200568, Phab:T200569, Phab:T200570, Phab:T200572			T174022: Implement multi-content revisions
T174033	T174033: Refactor EditPage to allow multiple slots to be edited atomically [MCR]	open	needs triage (violet)			Phab:T194734, Phab:T209927			T174022: Implement multi-content revisions T200570: Make ApiEditPage and ApiStashEdit API modules aware of MCR
T174035	T174035: Allow the view action to show multiple slots [MCR]	resolved	high (red)		daniel (Daniel Kinzler)	Phab:T194048			T174036: Diffs page should show diffs and content from multiple slots [MCR] T200572: Make ApiParse API module aware of MCR
T174036	T174036: Diffs page should show diffs and content from multiple slots [MCR]	resolved	needs triage (violet)		daniel (Daniel Kinzler)	Phab:T174035, Phab:T194731			T194750: Deploy Structured Data on Commons baseline
T174037	T174037: Implement single-slot UI [MCR]	open	normal (orange)			Phab:T204112			T174022: Implement multi-content revisions
T174038	T174038: Initial implementation of MCR page update interface	resolved	normal (orange)		daniel (Daniel Kinzler)	Phab:T174024, Phab:T174030, Phab:T180210, Phab:T180989, Phab:T196653, Phab:T197685			T194729: Allow Wikibase Entities to be stored in alternative slots [MCR] T196087: Refactored implementation of MCR page update interface
T174043	T174043: Deploy Multi-Content Revisions	open	normal (orange)			Phab:T174022, Phab:T174044, Phab:T174045, Phab:T198492
T174044	T174044: Deploy MCR storage layer	resolved	normal (orange)		daniel (Daniel Kinzler)	Phab:T174023, Phab:T183488, Phab:T196585, Phab:T198308, Phab:T198561, Phab:T205808			T174043: Deploy Multi-Content Revisions
T174045	T174045: DB schema migration for MCR	open	normal (orange)			Phab:T174028, Phab:T174030, Phab:T183490			T174043: Deploy Multi-Content Revisions
T174047	T174047: Hide deprecated/unused fields on toolforge replica [MCR]	open	normal (orange)						T183487: MCR schema migration stage 3: stop using legacy fields T198312: Set the WMF cluster to use the new MCR-only schema
T180210	T180210: Improve test coverage for Revision class	resolved	needs triage (violet)		Addshore (Adam_WMDE)				T174038: Initial implementation of MCR page update interface
T180989	T180989: Improve Test Coverage for WikiPage class	resolved	high (red)		Addshore (Adam_WMDE)				T174038: Initial implementation of MCR page update interface
T182678	T182678: [MCR] Script for populating empty ar_rev_id fields	resolved	normal (orange)		Anomie (Brad Jorsch)				T174030: Implement DB schema migration tools for MCR T183489: MCR schema migration stage 1: Fix Legacy Archive Rows
T182682	T182682: [MCR] Script(s) for populating new tables (slots, content, content_models, slot_roles)	resolved	normal (orange)		Anomie (Brad Jorsch)				T174030: Implement DB schema migration tools for MCR
T183486	T183486: MCR schema migration stage 0: create tables	resolved	normal (orange)		Anomie (Brad Jorsch)				T183489: MCR schema migration stage 1: Fix Legacy Archive Rows
T183487	T183487: MCR schema migration stage 3: stop using legacy fields	resolved	normal (orange)			Phab:T174047, Phab:T183488, Phab:T198312			T183490: MCR schema migration stage 4: Migrate External Store URLs (wmf production)
T183488	T183488: MCR schema migration stage 2: populate new fields	resolved	normal (orange)		tstarling (Tim Starling)	Phab:T174030, Phab:T183489, Phab:T196172, Phab:T197816, Phab:T202032			T174044: Deploy MCR storage layer T183487: MCR schema migration stage 3: stop using legacy fields T198308: Enable MCR migration stage "write both, read new" on live systems T198309: Enable MCR migration stage "write both, read new" on testwiki
T183489	T183489: MCR schema migration stage 1: Fix Legacy Archive Rows	resolved	normal (orange)		Anomie (Brad Jorsch)	Phab:T182678, Phab:T183486, Phab:T184629, Phab:T193180, Phab:T36925			T183488: MCR schema migration stage 2: populate new fields
T183490	T183490: MCR schema migration stage 4: Migrate External Store URLs (wmf production)	open	normal (orange)			Phab:T183487			T174045: DB schema migration for MCR
T183777	T183777: Some PHPUnit tests consistently fail when collecting coverage report	resolved	needs triage (violet)
T183798	T183798: Flaky user tests/De-captialising tests/phpunit/includes/Storage shouldn't cause user test breakages	declined	needs triage (violet)
T184629	T184629: Run maintenance/migrateArchiveText.php on all wikis	resolved	needs triage (violet)		Anomie (Brad Jorsch)				T183489: MCR schema migration stage 1: Fix Legacy Archive Rows T33223: Remove old archive.ar_text/archive.ar_flags
T185793	T185793: Revision hash needs to consider content model and slot role	open	needs triage (violet)						T174022: Implement multi-content revisions
T186371	T186371: Redesign revision-related event schemas for MCR	open	low (yellow)		Pchelolo
T187153	T187153: Special:Abuselog throws when viewing details or examining (BadMethodCallException: Call get getId() on null)	stalled	high (red)		Daimona
T187935	T187935: Allow cross-slot access during HTML rendering.	open	normal (orange)						T174022: Implement multi-content revisions T200687: MCR support in TemplateStyles
T188396	T188396: It should be possible to understand the reason of revision creation from RevisionRecordInserted hook	declined	needs triage (violet)
T189220	T189220: Ensure that relevant extensions are MCR-aware	open	normal (orange)			Phab:T191795, Phab:T194037, Phab:T195779, Phab:T200687, Phab:T201848, Phab:T202763, Phab:T205982, Phab:T208769, Phab:T208770, Phab:T208771, Phab:T218096			T174022: Implement multi-content revisions
T189808	T189808: Make undo work with multiple slots.	open	low (yellow)			Phab:T194412, Phab:T200216			T174022: Implement multi-content revisions
T190063	T190063: Tracking dependencies for multiple Content objects per page (MCR)	resolved	normal (orange)		daniel (Daniel Kinzler)				T194037: Track dependencies for multiple Content objects per page T199352: Deploy Structured Data on Commons with arbitrary Statements
T190066	T190066: Expose all slots to the search interface	open	normal (orange)						T174022: Implement multi-content revisions
T191795	T191795: Support MCR in mobile	open	needs triage (violet)						T189220: Ensure that relevant extensions are MCR-aware
T192306	T192306: Create MCR test wiki on WM Cloud	resolved	normal (orange)		Tgr (Gergő Tisza)	Phab:T196082			T196653: Test MCR Storage Layer Patches
T192307	T192307: Provide MCR-aware hook points	open	normal (orange)			Phab:T205982			T196087: Refactored implementation of MCR page update interface
T192926	T192926: Schema change to drop archive.ar_text and archive.ar_flags	resolved	normal (orange)		Marostegui (Manuel Aróstegui)				T33223: Remove old archive.ar_text/archive.ar_flags
T193180	T193180: Clean up archive rows with duplicate revision IDs	resolved	high (red)		Anomie (Brad Jorsch)	Phab:T202032			T183489: MCR schema migration stage 1: Fix Legacy Archive Rows
T194015	T194015: Make PageArchive aware of MCR	resolved	normal (orange)		daniel (Daniel Kinzler)				T174023: Implement MCR storage layer
T194034	T194034: Make rollback inherit all slots from the target version	resolved	normal (orange)		daniel (Daniel Kinzler)				T174023: Implement MCR storage layer
T194037	T194037: Track dependencies for multiple Content objects per page	resolved	needs triage (violet)		daniel (Daniel Kinzler)	Phab:T190063, Phab:T194038, Phab:T194043, Phab:T194049			T189220: Ensure that relevant extensions are MCR-aware T196087: Refactored implementation of MCR page update interface T199352: Deploy Structured Data on Commons with arbitrary Statements
T194038	T194038: Introduce ContentHandler::getSecondaryDataUpdates to replace Content::getSecondaryDataUpdates	resolved	needs triage (violet)		daniel (Daniel Kinzler)				T194037: Track dependencies for multiple Content objects per page
T194042	T194042: Replace usages of WikiPage::prepareContentForEdit	open	normal (orange)			Phab:T194048, Phab:T194049			T196087: Refactored implementation of MCR page update interface
T194043	T194043: Replace usages of Content::getSecondaryDataUpdates	resolved	normal (orange)		Tgr (Gergő Tisza)	Phab:T196653			T194037: Track dependencies for multiple Content objects per page
T194046	T194046: Introduce SlotRoleHandler and SlotRoleRegistry for declaring slot roles.	resolved	normal (orange)		daniel (Daniel Kinzler)	Phab:T195980, Phab:T209927			T200915: Allow SlotRoleHandlers to control page layout T205444: Provide a way of having a meaningful slot header T205459: Decide how SlotRoleHandlers can provide placeholders for missing slots T209924: Specify PageTypeHandler
T194048	T194048: Introduce RevisionRenderer (baseline)	resolved	normal (orange)		daniel (Daniel Kinzler)	Phab:T194049, Phab:T194263			T174035: Allow the view action to show multiple slots [MCR] T194042: Replace usages of WikiPage::prepareContentForEdit T200915: Allow SlotRoleHandlers to control page layout
T194049	T194049: Introduce SlotRenderingProvider	invalid	normal (orange)		Tgr (Gergő Tisza)				T194037: Track dependencies for multiple Content objects per page T194042: Replace usages of WikiPage::prepareContentForEdit T194048: Introduce RevisionRenderer (baseline)
T194263	T194263: Deprecate/Remove ContentHandler::makeParserOptions()	resolved	normal (orange)		Anomie (Brad Jorsch)				T194048: Introduce RevisionRenderer (baseline)
T194412	T194412: Make undo fail gracefully for non-main slots.	resolved	normal (orange)		daniel (Daniel Kinzler)				T189808: Make undo work with multiple slots.
T194429	T194429: Remove the need to generate ParserOutput before PageContentSave hook is called	open	needs triage (violet)
T194729	T194729: Allow Wikibase Entities to be stored in alternative slots [MCR]	resolved	needs triage (violet)		Addshore (Adam_WMDE)	Phab:T174038, Phab:T198701			T159708: Deploy WikibaseMediaInfo extension to production T194750: Deploy Structured Data on Commons baseline
T194730	T194730: Ensure that Wikibase data access to MediaInfo on file description pages works with MCR	duplicate	needs triage (violet)
T194731	T194731: Show diffs for all slots [MCR]	resolved	needs triage (violet)		Tgr (Gergő Tisza)	Phab:T201842			T174036: Diffs page should show diffs and content from multiple slots [MCR] T200216: Make undo work with SDC by showing a UI to confirm undo without allowing an edit T200569: Make ApiComparePages API module aware of MCR
T194734	T194734: Implement edit conflict resolution for MCR	open	normal (orange)			Phab:T194736			T174033: Refactor EditPage to allow multiple slots to be edited atomically [MCR]
T194736	T194736: Implement automatic conflict resolution for all slots [MCR]	open	normal (orange)		daniel (Daniel Kinzler)				T194734: Implement edit conflict resolution for MCR
T194750	T194750: Deploy Structured Data on Commons baseline	resolved	needs triage (violet)		Jdforrester-WMF (James D. Forrester)	Phab:T159708, Phab:T174036, Phab:T194729, Phab:T197816, Phab:T198308, Phab:T198413, Phab:T200216, Phab:T200568, Phab:T200569			T199352: Deploy Structured Data on Commons with arbitrary Statements T199375: Complete implementation and deployment of MCR SDC baseline (CDP4) T204732: Provide a way to restore an old revision with multiple slots.
T194830	T194830: Refactor DifferenceEngine	open	needs triage (violet)						T117279: [EPIC] Core should provide inline diffs as well as side by side (Move InlineDifferenceEngine into core / remove MobileDiff)
T195069	T195069: Factor PageStore and PageRecord out of WikiPage	open	low (yellow)						T196087: Refactored implementation of MCR page update interface
T195212	T195212: ServiceContainer: Allow extensions to manipulate services upon creation	resolved	normal (orange)		daniel (Daniel Kinzler)
T195692	T195692: Attempt to undelete page causes error: Fatal exception of type IncompleteRevisionException: user_text field must not be !	resolved	high (red)		daniel (Daniel Kinzler)
T195779	T195779: MCR support in ORES	open	low (yellow)						T189220: Ensure that relevant extensions are MCR-aware
T195980	T195980: Write a specification for the architecture for handling slots	resolved	normal (orange)		daniel (Daniel Kinzler)				T194046: Introduce SlotRoleHandler and SlotRoleRegistry for declaring slot roles.
T196082	T196082: npm install for selenium tests not working on labs-vagrant	resolved	needs triage (violet)		CCicalese_WMF (Cindy Cicalese)				T192306: Create MCR test wiki on WM Cloud
T196087	T196087: Refactored implementation of MCR page update interface	open	normal (orange)		daniel (Daniel Kinzler)	Phab:T174038, Phab:T192307, Phab:T194037, Phab:T194042, Phab:T195069, Phab:T198075			T174022: Implement multi-content revisions
T196172	T196172: Test schema migration script	resolved	normal (orange)		Anomie (Brad Jorsch)				T183488: MCR schema migration stage 2: populate new fields
T196585	T196585: Deploy some MCR related patches on test / group0 for an extended period	resolved	needs triage (violet)		Addshore (Adam_WMDE)				T174044: Deploy MCR storage layer
T196653	T196653: Test MCR Storage Layer Patches	resolved	normal (orange)		Tgr (Gergő Tisza)	Phab:T192306			T174024: Implement MCR revision retrieval interface T174038: Initial implementation of MCR page update interface T194043: Replace usages of Content::getSecondaryDataUpdates
T197619	T197619: Introduce SCHEMA_COMPAT_XXX constants to allow more fine grained control over the migration process	resolved	needs triage (violet)		daniel (Daniel Kinzler)				T197818: Enable MCR migration stage "write both, read old" on commons beta.
T197685	T197685: Clarify semantics of "base revision" and "parent revision" in EditPage, WikiPage, and PageUpdater	resolved	high (red)		daniel (Daniel Kinzler)				T174038: Initial implementation of MCR page update interface
T197816	T197816: Enable MCR migration stage "write both, read old" on live systems	resolved	normal (orange)		tstarling (Tim Starling)	Phab:T197817			T183488: MCR schema migration stage 2: populate new fields T194750: Deploy Structured Data on Commons baseline T198308: Enable MCR migration stage "write both, read new" on live systems
T197817	T197817: Enable MCR migration stage "write both, read old" on testwiki	resolved	normal (orange)		Anomie (Brad Jorsch)	Phab:T197818			T197816: Enable MCR migration stage "write both, read old" on live systems T198309: Enable MCR migration stage "write both, read new" on testwiki
T197818	T197818: Enable MCR migration stage "write both, read old" on commons beta.	resolved	normal (orange)		Anomie (Brad Jorsch)	Phab:T197619			T197817: Enable MCR migration stage "write both, read old" on testwiki T198311: Enable MCR migration stage "write both, read new" on commons beta.
T198024	T198024: [[MediaWiki:Undo-main-slot-only]] translation issue	resolved	needs triage (violet)		Hamilton_Abreu
T198075	T198075: RFC: factoring page update logic out of WikiPage	open	needs triage (violet)						T196087: Refactored implementation of MCR page update interface
T198099	T198099: Improve MCR handling of RevisionAccessException family	open	normal (orange)		daniel (Daniel Kinzler)				T174032: Make relevant API modules aware of MCR
T198297	T198297: Use PageUpdater to create dummy revisions	open	normal (orange)						T174022: Implement multi-content revisions
T198308	T198308: Enable MCR migration stage "write both, read new" on live systems	resolved	needs triage (violet)		Anomie (Brad Jorsch)	Phab:T183488, Phab:T197816, Phab:T198309, Phab:T198561			T174044: Deploy MCR storage layer T194750: Deploy Structured Data on Commons baseline
T198309	T198309: Enable MCR migration stage "write both, read new" on testwiki	resolved	needs triage (violet)		Anomie (Brad Jorsch)	Phab:T183488, Phab:T197817, Phab:T198311, Phab:T198561			T198308: Enable MCR migration stage "write both, read new" on live systems
T198311	T198311: Enable MCR migration stage "write both, read new" on commons beta.	resolved	needs triage (violet)		Anomie (Brad Jorsch)	Phab:T197818, Phab:T198413			T198309: Enable MCR migration stage "write both, read new" on testwiki T198559: Set Beta Cluster wikis to use the new MCR-only schema T198561: Make "write both, read new" the default MCR migration stage for fresh MediaWiki installs / for CI
T198312	T198312: Set the WMF cluster to use the new MCR-only schema	resolved	normal (orange)		Anomie (Brad Jorsch)	Phab:T174047, Phab:T198558, Phab:T198706			T183487: MCR schema migration stage 3: stop using legacy fields
T198341	T198341: Remove all references to the rev_text_id and ar_text_id fields	resolved	normal (orange)		daniel (Daniel Kinzler)	Phab:T198342, Phab:T198343
T198342	T198342: Remove all usages of the 'text' flag in calls to Revision::getQueryInfo() and RevisionStore::getQueryInfo().	resolved	normal (orange)		Pchelolo	Phab:T198706			T198341: Remove all references to the rev_text_id and ar_text_id fields
T198343	T198343: Replace all calls to Revision::getRevisionText()	resolved	high (red)		Pchelolo				T198341: Remove all references to the rev_text_id and ar_text_id fields
T198413	T198413: Allow multiple slots to be used while still writing to the old as well as the new schema	resolved	needs triage (violet)		daniel (Daniel Kinzler)				T174023: Implement MCR storage layer T194750: Deploy Structured Data on Commons baseline T198311: Enable MCR migration stage "write both, read new" on commons beta.
T198449	T198449: Rollback from autopatrolled user was marked as not patrolled	resolved	high (red)		matej_suchanek (Matěj Suchánek)
T198492	T198492: Create a maintenance script to drop rev_text_id and ar_text_id from the database.	open	normal (orange)			Phab:T198557			T174022: Implement multi-content revisions T174043: Deploy Multi-Content Revisions
T198557	T198557: Remove the ability to write pre-MCR fields, limit the ability to read pre-MCR fields to migration scripts	open	normal (orange)		daniel (Daniel Kinzler)	Phab:T198706			T198492: Create a maintenance script to drop rev_text_id and ar_text_id from the database.
T198558	T198558: Set testwiki to use the new MCR-only schema	resolved	normal (orange)		daniel (Daniel Kinzler)	Phab:T198559			T198312: Set the WMF cluster to use the new MCR-only schema
T198559	T198559: Set Beta Cluster wikis to use the new MCR-only schema	resolved	normal (orange)		daniel (Daniel Kinzler)	Phab:T198311			T198558: Set testwiki to use the new MCR-only schema
T198561	T198561: Make "write both, read new" the default MCR migration stage for fresh MediaWiki installs / for CI	resolved	normal (orange)		daniel (Daniel Kinzler)	Phab:T198311, Phab:T198563, Phab:T201164			T174044: Deploy MCR storage layer T198308: Enable MCR migration stage "write both, read new" on live systems T198309: Enable MCR migration stage "write both, read new" on testwiki

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