SugarCRM ALB Configuration Or SugarCRM two server Environment Deployment (multi server instance).

Hi M kumar

A few questions:

1. How are you managing sessions? Are both the servers using shared session management like Memcache/Redis? 

2. Are both the servers running the same codebase? If the codebase is different, each server might generate it's own cache and will invalidate one other repeatedly.

3. Which version of Sugar are you running?

Also, can you share a screenshot of the network tab from browser to the backend server? Do you see any other errors logs (sugarcrm.log) in the servers?

Hi ,Neerja 

I am using load balancing on server.

1- We have two different server like server-1 and server-2, server-1 has 1 separate instance  and server-2 has own separate instance but both instance using same data base rds server and both server access with single url it switched internally according to load balancer.

when we have stopped server -1 then application working fine.

when both server running simultaneously we are facing issue like pre direction 402,401 and server stuck few minutes on loading issue and console multiple numbers of errors like 401 and 402 application preformation to decrease.

when we have stopped server -1 then application working fine.

when both server running simultaneously we are facing issue like pre direction 402,401 and server stuck few minutes on loading issue and console multiple numbers of errors like 401 and 402 application preformation to decrease.

M kumar - how about Session management? Are you using a shared Memcache? A shared session management is definitely required and is probably the reason why you're receiving 401s.