[05:51:40] 10DBA: Relocate "old" s4 hosts - https://phabricator.wikimedia.org/T253217 (10Marostegui) [05:56:04] 10DBA, 10Patch-For-Review, 10Upstream, 10cloud-services-team (Kanban): Reimage labsdb1011 to Buster and MariaDB 10.4 - https://phabricator.wikimedia.org/T249188 (10Marostegui) db1141 finally crashed (it is not pooled) In order to have that host up-to-date in case we need to temporarily place it for a few m... [07:16:48] 10DBA, 10Upstream: Investigate possible memory leak on db1115 - https://phabricator.wikimedia.org/T231769 (10Marostegui) After 4 days since I stopped the event scheduler, the memory never grew. I have filed this upstream: https://jira.mariadb.org/browse/MDEV-22809 [07:23:05] 10DBA, 10CheckUser, 10Trust-and-Safety, 10WMF-Legal, and 2 others: Set wgCheckUserLogLogins to true on WMF wikis to log successful and unsuccessful login attempts in CheckUser - https://phabricator.wikimedia.org/T253802 (10Marostegui) >>! In T253802#6190788, @Huji wrote: >>>! In T253802#6190510, @Ladsgroup... [07:28:06] 10DBA, 10CheckUser, 10Trust-and-Safety, 10WMF-Legal, and 2 others: Set wgCheckUserLogLogins to true on WMF wikis to log successful and unsuccessful login attempts in CheckUser - https://phabricator.wikimedia.org/T253802 (10Urbanecm) This is possible to be turned on/off at any moment. We can also test this... [07:29:46] 10DBA, 10CheckUser, 10Trust-and-Safety, 10WMF-Legal, and 2 others: Set wgCheckUserLogLogins to true on WMF wikis to log successful and unsuccessful login attempts in CheckUser - https://phabricator.wikimedia.org/T253802 (10Marostegui) >>! In T253802#6195306, @Urbanecm wrote: > This is possible to be turned... [08:39:52] 10DBA: Upgrade m1 to Buster and Mariadb 10.4 - https://phabricator.wikimedia.org/T254556 (10Marostegui) [08:40:03] 10DBA: Upgrade m1 to Buster and Mariadb 10.4 - https://phabricator.wikimedia.org/T254556 (10Marostegui) p:05Triage→03Medium [08:46:56] FileNotFoundError: [Errno 2] No such file or directory: '/opt/wmf-mariadb101/bin/mariabackup': '/opt/wmf-mariadb101/bin/mariabackup' [08:47:20] I think there is a couple of scripts with hardcoded paths [08:51:52] heh [08:57:08] on my defense, the line had this: [08:57:25] xtrabackup_path = '/opt/wmf-mariadb101/bin/mariabackup' # FIXME for global path after upgrade [08:58:42] :) [09:30:24] retrying the snapshot again- we had fixed the transfer, but the prepare was left [12:01:12] 10DBA, 10Growth-Team, 10MediaWiki-Recent-changes, 10Schema-change: recentchanges table indexes: tmp1, tmp2 and tmp3 - https://phabricator.wikimedia.org/T206103 (10Marostegui) [12:22:50] Hello everyone, where can I read about backgrounds of doing a schema change (ie. what DBA have to do to perform an ALTER)? [12:23:43] Urbanecm: Not sure what you exactly mean? [12:24:01] https://wikitech.wikimedia.org/wiki/Schema_changes [12:24:02] this? [12:28:01] marostegui: I mean, once you actually run the alters, I'm curious if that happens only on master, or if you do it everywhere manually. [12:29:01] Urbanecm: Unless the schema change is on a very small and not super used tables, we do not run them on the master with replication enabled [12:29:29] Urbanecm: we normally run them on the slaves, and once done if the schema change can be done online (ie: adding an index or a column) we then run it on the master without replication enabled [12:29:45] I see, thanks marostegui [12:29:49] if it cannot be done online (ie: modiying data type on a column) we have to switchover the master and once it is on a slave, we do it [12:30:18] some tables cannot even run onliune schema changes, due to high much activity they have like image table on commonswiki or revision on enwiki [13:33:41] marostegui: \o/ re: https://gerrit.wikimedia.org/r/601761. i want to wait for moritzm to do another pass before submitting, then i can test it with something like db1077 [13:34:50] kormat: sounds good, I have stopped my tests on db1077 for the events leak [13:34:53] so you can test on it [14:10:57] prepare worked ok this time [14:11:22] so only packaging is left, meaning the backup workflow is now ready for 10.4 [14:11:50] should I test backups of 10.1 with a 10.4 xtrabackup, or we won't support that? [14:12:19] (we tested that for dumps, but not for xtrabackup) [14:27:11] 10DBA, 10CheckUser, 10Trust-and-Safety, 10WMF-Legal, and 2 others: Set wgCheckUserLogLogins to true on WMF wikis to log successful and unsuccessful login attempts in CheckUser - https://phabricator.wikimedia.org/T253802 (10Huji) >>! In T253802#6195306, @Urbanecm wrote: > This is possible to be turned on/of... [14:47:56] 10DBA, 10Gerrit: Get a writable reviewdb clone to test Gerrit upgrade with - https://phabricator.wikimedia.org/T254516 (10jcrespo) Thanks for the ticket, otherwise we would surely forget about the request with so many things going on. I can take care fully of this, but @Marostegui should be on the loop becaus... [14:51:02] 10DBA, 10Gerrit: Get a writable reviewdb clone to test Gerrit upgrade with - https://phabricator.wikimedia.org/T254516 (10jcrespo) p:05Triage→03Medium [15:31:33] name: snapshot.s1-104.2020-06-05--09-28-28 [15:31:38] status: finished [19:03:25] 10DBA, 10Gerrit: Get a writable reviewdb clone to test Gerrit upgrade with - https://phabricator.wikimedia.org/T254516 (10QChris) >>! In T254516#6196583, @jcrespo wrote: > I can take care fully of this, but @Marostegui should be on the loop because of new db and grants will be needed and he should be aware of...