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Drop several views from srwikinews
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in T209761, several tables were dropped. Should be reflected on cloud too.


Related Gerrit Patches:

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Restricted Application added subscribers: Petar.petkovic, Aklapper. · View Herald TranscriptDec 13 2018, 10:05 PM
Zoranzoki21 added a subscriber: Zoranzoki21.

Oh, thanks for opening of task @Urbanecm :D

bd808 added subscribers: Marostegui, bd808.

If the extension is disabled and it is decided it won't be enabled again, there is no need to keep the tables and we should clean them up.
Once this is decided for sure, create a ticket for us to get them dropped.

I think that someone on the DBA team needs to actually drop the tables in both prod and replicas still based on what I can see in the history of T209251: Remove FlaggedRevs and add back rights autopatrolled, patroller (with enabled RCPatrol), rollbacker on srwikinews. It looks like all that has been done at this point is disabling the extension.

bd808 closed this task as Resolved.Dec 13 2018, 10:32 PM
bd808 claimed this task.
bd808 added a subscriber: Banyek.
$ ssh labsdb1009
$ sudo /usr/local/sbin/maintain-views --debug --clean --replace-all --database srwikinews
2018-12-13 22:21:43,708 INFO cleanup is enabled
2018-12-13 22:21:43,709 INFO cleaning 12 tables
2018-12-13 22:21:43,709 INFO Dropping view srwikinews_p.flaggedpage_config
2018-12-13 22:21:43,709 DEBUG SQL: drop view srwikinews_p.flaggedpage_config
2018-12-13 22:21:43,712 INFO Dropping view srwikinews_p.flaggedpage_pending
2018-12-13 22:21:43,712 DEBUG SQL: drop view srwikinews_p.flaggedpage_pending
2018-12-13 22:21:43,714 INFO Dropping view srwikinews_p.flaggedrevs_tracking
2018-12-13 22:21:43,714 DEBUG SQL: drop view srwikinews_p.flaggedrevs_tracking
2018-12-13 22:21:43,716 INFO Dropping view srwikinews_p.flaggedrevs_promote
2018-12-13 22:21:43,716 DEBUG SQL: drop view srwikinews_p.flaggedrevs_promote
2018-12-13 22:21:43,717 INFO Dropping view srwikinews_p.flaggedrevs_stats
2018-12-13 22:21:43,718 DEBUG SQL: drop view srwikinews_p.flaggedrevs_stats
2018-12-13 22:21:43,719 INFO Dropping view srwikinews_p.flaggedtemplates
2018-12-13 22:21:43,720 DEBUG SQL: drop view srwikinews_p.flaggedtemplates
2018-12-13 22:21:43,721 INFO Dropping view srwikinews_p.flaggedrevs_stats2
2018-12-13 22:21:43,721 DEBUG SQL: drop view srwikinews_p.flaggedrevs_stats2
2018-12-13 22:21:43,723 INFO Dropping view srwikinews_p.flaggedimages
2018-12-13 22:21:43,724 DEBUG SQL: drop view srwikinews_p.flaggedimages
2018-12-13 22:21:43,725 INFO Dropping view srwikinews_p.flaggedrevs_statistics
2018-12-13 22:21:43,726 DEBUG SQL: drop view srwikinews_p.flaggedrevs_statistics
2018-12-13 22:21:43,727 INFO Dropping view srwikinews_p.flaggedrevs
2018-12-13 22:21:43,727 DEBUG SQL: drop view srwikinews_p.flaggedrevs
2018-12-13 22:21:43,729 INFO Dropping view srwikinews_p.flaggedpages
2018-12-13 22:21:43,729 DEBUG SQL: drop view srwikinews_p.flaggedpages
2018-12-13 22:21:43,732 INFO Dropping view srwikinews_p.msg_resource_links
2018-12-13 22:21:43,732 DEBUG SQL: drop view srwikinews_p.msg_resource_links

Repeated on labsdb1010 and labsdb1011.

$ ssh
$ sql srwikinews
( [srwikinews_p]> show tables like 'flagged%';
Empty set (0.00 sec)
$ sql --cluster=web srwikinews
(u3518@srwikinews.web.db.svc.eqiad.wmflabs) [srwikinews_p]> show tables like 'flagged%';
Empty set (0.00 sec)

The initial run on labsdb1010 had errors because --clean is trying to drop the srwikinews_p.comment_mat table that was built there by @Banyek for T210693: Create materialized views on Wiki Replica hosts for better query performance. Running repeatedly seems to have removed all of the views that need to be dropped leaving that raw table in-place. I'll open another task about how the error handling worked in the script; we can do better.

Everything looks good now, thanks!

Probably the problem is caused as the comment_mat is not a view but a table, I'll check the maintain-views script to understand how it works

Banyek added a subscriber: Andrew.Jan 9 2019, 9:55 AM

@Andrew I cleaned up the tables (T210693) which blocked using the maintain-views script

Here is everything ok.

Change 491454 had a related patch set uploaded (by GTirloni; owner: GTirloni):
[operations/puppet@production] wikireplicas: depool labsdb1009 for updates

Change 491454 merged by GTirloni:
[operations/puppet@production] wikireplicas: depool labsdb1009 for updates

Change 491478 had a related patch set uploaded (by GTirloni; owner: GTirloni):
[operations/puppet@production] Revert "wikireplicas: depool labsdb1009 for updates"

Change 491478 merged by GTirloni:
[operations/puppet@production] Revert "wikireplicas: depool labsdb1009 for updates"

Please ignore above commits,they were meant for T216481. Sorry, bad copy/paste.