Author: afeldman

Description:
There doesn't currently seem to be a way to set centralauth to read-only which results in a site outage when its master needs to be rotated.

When the cluster with centralauth is set to read-only (currently S7), it only applies to wikis also on that cluster. Other wikis will still both want to write to centralauth, and also only send their queries to a caught up slave, which there won't be any of for a time during a master switch.

Normally, when a cluster has $wgReadOnly = true, queries are sent to any slave and replication lag checking is disabled. Setting centralauth to read-only needs this behavior as well.

Version: unspecified
Severity: major