jcrespo added a subscriber: jcrespo. jcrespo added a comment. This query, which has to be executed in a serialized way due to replication, is causing a lag problem on some of the less powerful database slaves (db1047), and extra load on the rest of the servers. This is specially true for s3, where due to it containing hundreds of wikis, even with low traffic, it makes for most of its write load.
Please note that even if this query is fast, it can create a huge bottleneck on the replication topology. Please consider executing it on a separate shard or storage system to minimize its impact to production. TASK DETAIL https://phabricator.wikimedia.org/T107319 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: jcrespo Cc: jcrespo, Aklapper, aude, Wikidata-bugs, Malyacko, P.Copp _______________________________________________ Wikidata-bugs mailing list Wikidata-bugs@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata-bugs
