| daniel added a comment. |
@jcrespo All the info you requested should already be in the task description:
- new tables are already there, will be populated when T183488 is done, which is due to start happening in August, and will probably take to the end of September to complete on all wikis. The completion of this will be marked by T198308: Enable MCR migration stage "write both, read new" on live systems. At this point, the old fields can and should soon be hidden from the replica views.
- the old fields will stop being updated with T198312: Set the WMF cluster to use the new MCR-only schema, which is expected to happen some time in Q2. The query to use instead is given in the task description. At this point, the old fields must no longer be available in the replica views (this ticket).
- the old fields will be dropped from the revision and page tables... whenever it suits you. The plan says Q3, but there is no rush.
TASK DETAIL
EMAIL PREFERENCES
To: daniel
Cc: Stashbot, jcrespo, gerritbot, Bstorm, Tgr, bd808, Anomie, Aklapper, daniel, AndyTan, Zylc, 1978Gage2001, Lahi, Gq86, GoranSMilovanovic, Chicocvenancio, QZanden, Tbscho, LawExplorer, JJMC89, Agabi10, srodlund, Wikidata-bugs, aude, Gryllida, scfc, Mbch331, Ltrlg, Krenair, chasemp
Cc: Stashbot, jcrespo, gerritbot, Bstorm, Tgr, bd808, Anomie, Aklapper, daniel, AndyTan, Zylc, 1978Gage2001, Lahi, Gq86, GoranSMilovanovic, Chicocvenancio, QZanden, Tbscho, LawExplorer, JJMC89, Agabi10, srodlund, Wikidata-bugs, aude, Gryllida, scfc, Mbch331, Ltrlg, Krenair, chasemp
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