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Maniphest T270223

FY2021-2022: Enable basic Multi-DC operations for read traffic (tracking)
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Description

Tracking work happening in FY2021-2022 to finish up remaining work required before basic Multi-DC operations can be enabled.

See also https://www.mediawiki.org/wiki/Wikimedia_Performance_Team/Active-active_MediaWiki.

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StatusSubtypeAssignedTask
 OpenKrinkleT270223 FY2021-2022: Enable basic Multi-DC operations for read traffic (tracking)
 OpenNoneT91820 Create HTTP verb and sticky cookie DC routing in VCL
ResolvedaaronT91816 Add code to enable setting sticky DC cookies for POST requests
 ResolvedaaronT121440 Dedicated post-edit cache busting cookie to prevent stale reads (session consistency)
 OpenaaronT113916 Switch ResourceLoader file dependency tracking to MultiDC-friendly backend
 ResolvedaaronT247028 Database 'INSERT' query rate doubled (module_deps regression?)
 ResolvedtstarlingT253433 Web installer CSS fails with ServiceDisabledException
 DeclinedaaronT253697 Support hash-based deduplication in KeyValueDependencyStore
 OpenaaronT212129 Move MainStash out of Redis to a simpler multi-dc aware solution
 ResolvedEevansT222851 Improve Echo seentime code for multi-DC access
 ResolvedaaronT229062 Look into a simple way to have global keys with db-replicated
 ResolvedKrinkleT254634 Determine and implement multi-dc strategy for ChronologyProtector
Unknown Object (Task)
 ResolvedPapaulT267041 (Need By: 2020-11-29) rack/setup/install db214[234]
 OpentstarlingT267270 Determine multi-dc strategy for CentralAuth
 OpenaaronT278392 Storage solution for cross-datacenter tokens
 ResolvedMarosteguiT269324 Productionize x2 databases
 OpenaaronT274174 Add modtoken field and flags to objectcache table
 OpenNoneT270225 Finish session storage to actually meet multi-DC requirements
 ResolvedEevansT222990 Audit session storage to determine max age of un-GC'd sessions
 OpenKrinkleT277831 Evaluate WMF's ParserCache database setup for Multi DC
 OpenMarosteguiT133523 Decide how to improve parsercache replication, sharding and HA
 ResolvedMarosteguiT210725 Replace parsercache keys to something more meaningful on db-XXXX.php
 OpenKrinkleT279664 Decide on details of progressive Multi-DC roll out

Event Timeline

Krinkle created this task.Dec 16 2020, 2:08 AM
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptDec 16 2020, 2:08 AM
Krinkle added subtasks: T254634: Determine and implement multi-dc strategy for ChronologyProtector, T267270: Determine multi-dc strategy for CentralAuth, T91820: Create HTTP verb and sticky cookie DC routing in VCL .Dec 16 2020, 2:08 AM
Krinkle added a subtask: T113916: Switch ResourceLoader file dependency tracking to MultiDC-friendly backend.
Krinkle added a subtask: T212129: Move MainStash out of Redis to a simpler multi-dc aware solution.Dec 16 2020, 2:10 AM
Krinkle removed a subtask: T212129: Move MainStash out of Redis to a simpler multi-dc aware solution.
Krinkle added a subtask: T254422: Move CentralAuth sessions from redis backend to kask.
Krinkle removed a subtask: T254422: Move CentralAuth sessions from redis backend to kask.Dec 16 2020, 2:13 AM
Krinkle renamed this task from FY2020-2012: Enable basic Multi-DC operations for read traffic (tracking) to FY2020-2021: Enable basic Multi-DC operations for read traffic (tracking).Dec 19 2020, 12:24 AM
Krinkle edited projects, added Performance-Team; removed Performance-Team (Radar).
Krinkle moved this task from Inbox to Next: Goal / Jan-Mar '21 on the Performance-Team board.Dec 21 2020, 7:56 PM
Krinkle added a subtask: T212129: Move MainStash out of Redis to a simpler multi-dc aware solution.Dec 22 2020, 8:46 PM
Krinkle updated the task description. (Show Details)Dec 22 2020, 8:52 PM
ema updated the task description. (Show Details)Jan 4 2021, 8:58 AM
greg added a subscriber: greg.Jan 4 2021, 6:03 PM
nshahquinn-wmf added a subscriber: nshahquinn-wmf.Jan 7 2021, 12:54 PM
RhinosF1 added a subscriber: RhinosF1.Jan 12 2021, 11:22 AM
Jdforrester-WMF added a subscriber: Jdforrester-WMF.Jan 19 2021, 9:49 PM
Krinkle triaged this task as High priority.Jan 25 2021, 7:55 PM
Krinkle mentioned this in T270101: Grants not working with DB hosts with to ipv6.Mar 10 2021, 9:29 PM
Izno added a subscriber: Izno.Mar 19 2021, 1:53 AM
Ltrlg added a subscriber: Ltrlg.Mar 19 2021, 12:09 PM
Krinkle closed subtask T254634: Determine and implement multi-dc strategy for ChronologyProtector as Resolved.Mar 19 2021, 8:29 PM
Krinkle renamed this task from FY2020-2021: Enable basic Multi-DC operations for read traffic (tracking) to FY2021-2022: Enable basic Multi-DC operations for read traffic (tracking).Apr 8 2021, 1:38 PM
Krinkle updated the task description. (Show Details)
Krinkle updated the task description. (Show Details)
Majavah added a subscriber: Majavah.Apr 13 2021, 1:06 PM
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