Geoserver 502 errors

[matthew-merkas]

I'm not sure what causes this, but I have noticed the geoserver times out with a 502 proxy error sometimes when I'm changing rasters or playing the animations. It occurs more often when I make quick changes/multiple requests. I imagine with more users this might become a bigger issue. This has been happening for a while on the old geoserver as well. Is this some form of rate limiting maybe? If so, I think we need to increase the limit

[matthew-merkas]

This happened again just now (the issue is still outstanding)

[michaelchin]

The server was overwhelmed. This issue is complicated. We can pay more for better server hardware, use local client cache, throttle http requests, use smart load balance strategy. Anyway, this cannot be fixed in short time. We can only improve the situation gradually.