Load Balancer Migration

Sumo Logic will be replacing the load balancers for all our customer-facing endpoints (UI, API and collection) from classic ELB to application ELB. This will fix issues some customers are facing with our endpoints, mostly collection, as well as allow us to keep innovating new features for our customers.

Near-term Impact

Initially, the new load balancers will preserve the same behavior as the old balancers and include the Max-Age directive. Hence, we expect no customer impact. While we don’t expect any issues, we ask customers to let us know if they encounter any unexpected behavior.

Long-term Impact (by June 2019)

Customers will need to update their clients to understand cookies with the Expires directive set with the date format detailed here https://tools.ietf.org/html/rfc7231#section-7.1.1.2.

If using apache commons httpclient this can be accomplished by setting the CookieSpec for the client to be ‘Standard’, more information here.

As a reference, Sumologic’s log4j appenders have been updated to the new cookie spec, see this for log4j and this for log4j2.