Google: how to change the scan speed in droves

At the end of last month on the forum Google Webmaster Central Help discussed an interesting question: how to change the scanning speed for a large number of subdomains at once.

The full question was as follows:

"We have 1000 different sub-domains (*.mydomain.com) running on the same server farm. Google crawls our website, it is 8 million times a day, which causes problems with the load. Is there any way to change the scan rate for all 1000 subdomains at once? Search Console these settings yet. To change the scanning speed for each subdomain, I need to manually change the settings 1000 times and repeat this work in 90 days, that is impossible."

In response, the representative of search advised to contact the team responsible for scanning, sending . According to him, they are engaged in such issues and can help.