Manual:$wgDataCenterUpdateStickTTL/en

From Linux Web Expert

<translate> Database settings</translate>: $wgDataCenterUpdateStickTTL
After a state-changing request is done by a client, this determines how many seconds that client should keep using the master datacenter.
<translate> Introduced in version:</translate>1.27.0 (Gerrit change 232661; git #0a1c04be)
<translate> Removed in version:</translate><translate> still in use</translate>
<translate> Allowed values:</translate>(integer)
<translate> Default value:</translate>10