What happened?

Aeries Web suffered some performance degradation for a small subset of users. Pages and Reports were slow to process and load.

Why did it happen?

After some maintenance operations last night a web server was not returned to the load balancing target group. This left a single web server to shoulder the entire load which it could not do.

What has been done to resolve this?

Re-adding the missing web server to the target group brought full capacity back to this specific zone.