/**
	 * @return ILoadBalancer the repo's database load balancer.
	 */
	private function getRepoLB(): ILoadBalancer {
		return $this->LBFactory->getMainLB( $this->repoDB );
	}

	/**
	 * @return IDatabase A connection to the repo's master database
	 */
	private function getRepoMaster(): IDatabase {
		return $this->getRepoLB()->getConnectionRef( DB_PRIMARY, [], $this->repoDB );
	}

	/**
	 * @return IDatabase A connection to the repo's replica database
	 */
	private function getRepoReplica(): IDatabase {
		return $this->getRepoLB()->getConnectionRef( DB_REPLICA, [], $this->repoDB );
	}

$this->LBFactory->waitForReplication( [ 'domain' => $this->repoDB ] );