Agenda
----------
- Location: #wikimedia-office IRC channel
- [Meeting type](https://www.mediawiki.org/wiki/Good_meetings#Taxonomy): TBD
- Time: Weekly, Wednesday 21:00 UTC (2pm [PDT](https://en.wikipedia.org/wiki/America/Los_Angeles), 23:00 [CEST](https://en.wikipedia.org/wiki/Central_European_Summer_Time))
- This time is the standard as of this writing (in March 2016), but may change as we make adjustments to accommodate daylight savings/summer time adjustments for the participants. By default, we intend for this meeting to be held Wednesday 2pm [San Francisco time](https://en.wikipedia.org/wiki/America/Los_Angeles).
- Topic:
- TBD (for discussion in comments)- T107595 - Multi-Content Revisions
This meeting is mainly about the [[https://www.mediawiki.org/wiki/Multi-Content_Revisions/Content_Meta-Data|Content Meta-Data Storage]] for MCR.
Detail questions:
* Do we want a single "names" table, or separate tables for different kinds of names, i.e. content_model, content_format, etc?
* Can we drop need cont_hash (or cont_sha1) and cont_logical_size?
* De we re-use or copy content rows?
* If we re-use, does the role live in the content or in the slot label?
Broader questions:
* Are the scaling and Efficiency estimates correct?
* What options do we have for optimization?
* Will the proposed migration plan work?
Meeting summary
---------------
* Channel is logged and publicly posted (DO NOT REMOVE THIS NOTE) |​
Logs: https://bots.wmflabs.org/~wm-bot/logs/%23wikimedia-office/
(robla, 21:02:11)
* LINK:
https://www.mediawiki.org/wiki/Multi-Content_Revisions/Content_Meta-Data#Database_Schema
(DanielK_WMDE, 21:11:03)
* LINK:
https://www.mediawiki.org/wiki/Multi-Content_Revisions/Content_Meta-Data#Re-using_Content_Rows
(DanielK_WMDE, 21:11:15)
* LINK:
https://www.mediawiki.org/wiki/Multi-Content_Revisions#Use_Cases
(TimStarling, 21:17:07)
* discussion of sharding for much of the first part of the meeting
(robla, 21:24:35)
* LINK: https://www.mediawiki.org/wiki/Topic:Tb6fok3z43ar16fe
(DanielK_WMDE, 21:51:16)
* 14:55:00Â <brion>Â yeah rev_comment and rev_user_text are easy wins
(robla, 21:57:56)
* re "super tall content table" vs "not-so-tall content table + super
tall slots table": <brion> i am strongly in favor of super tall
slots table <SMalyshev> I like the second one better (DanielK_WMDE,
21:59:06)
* brion to write up additional RfC on compacting rows in revision
table (should apply with or without MCR) (brion, 21:59:43)
Meeting ended at 22:02:32 UTC.
People present (lines said)
---------------------------
* DanielK_WMDE (92)
* brion (61)
* TimStarling (52)
* robla (25)
* James_F (21)
* bblack (10)
* Scott_WUaS (10)
* SMalyshev (9)
* AaronSchulz (6)
* tgr (4)
* wm-labs-meetbot (4)
* wm-labs-meetbot` (4)
* subbu (2)
* stashbot (1)
* marktraceur (1)
Log
----
{P4092}
Other meetings
------------------
| **[Architecture meetings](https://www.mediawiki.org/wiki/Architecture_meetings) ** |
|-----------------|
| 13:00 PT ArchCom Planning Meetings | [upcoming](https://phabricator.wikimedia.org/calendar/query/DlzGwrbxMLu9/) | [all since 2016-03-30](https://phabricator.wikimedia.org/calendar/query/M4fMy2PZOBQQ/) |
| **14:00 PT ArchCom-RFC Meetings** | **[upcoming](https://phabricator.wikimedia.org/calendar/query/ShzbHT6BPGCE/)** | **[all since 2015-09-09](https://phabricator.wikimedia.org/calendar/query/XJjy54s3PEFf/)**