The Mesos detail struck me as a risk for the reason you stated.
Also, the article seems to suggest Twitter only has two datacenters. That seems surprising for the global reach of the company. Perhaps there are other smaller datacenters that are not prepared to handle the entirety of the site’s traffic.
My current thinking is there’s time to figure out how to operate the current system before it runs into issues that would render it degraded for a prolonged period of time. I noticed TLS certs have already rotated for instance. That was my best guess for simple thing that could fail if managed poorly.
Also, the article seems to suggest Twitter only has two datacenters. That seems surprising for the global reach of the company. Perhaps there are other smaller datacenters that are not prepared to handle the entirety of the site’s traffic.
My current thinking is there’s time to figure out how to operate the current system before it runs into issues that would render it degraded for a prolonged period of time. I noticed TLS certs have already rotated for instance. That was my best guess for simple thing that could fail if managed poorly.