How do SDM Load balancing work between multiple web-engines.
Release :14.x and Higher
Component: Service Desk Manager
1. Configure multiple web-engines(ex: pdmweb.exe ,pdmweb1.exe and pdmweb2.exe) successfully.
2. When You launch the SDM URL "http://server:8080/CAisd/pdmweb.exe"-> it will direct you to either
Based on the Load on each web-engine.
3. To check the load, Run "pdm_webstat" command, It will show cumulative sessions, most sessions at a time and current active sessions on each web-engine.
Below image will show you an example with single Login on each web-engine.
4. If "cummulative Sessions so far" from above command output is equal on all web-engines then
1st Login will direct to: pdmweb.exe
2nd Login will direct to: pdmweb1.exe
3rd Login will direct to: pdmweb2.exe
If "cummulative Sessions so far" -> Is not equal on each web-engine -> then all the login request will be directed to that web-engine which has less count. Until the sessions are equal on each web-engine.
That is How load balancing is achieved
Multiple web-engines on SDM :
How to setup secondary server web-engine:
Reference documents on pdm_webstat: