Heavily degraded performance on Policy Servers

Document ID : KB000109663
Last Modified Date : 16/08/2018
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We're running Policy Server, and since two days, we experience heavy
slowness on some of our Policy servers. We are getting at the time of
the issue messages like :

Connection request rejected. Connection limit of 3072 exceeded 

[Sm_Auth_Message.cpp:511][INFO][sm-log-00000] Execution 
time exceeded threshold. (CSm_Auth_Message::ProcessMessage, 19953, 
5000, agent=myagent client=* 
server=https://myserver.mydomain.com resource=/index.html 
action=POST user=) 

How can we fix this ?
Indeed, the 1024 is too low, if you have set the Max Connection to
3072 and if this is a Production Server with load. From documentation,
we mentioned that value but only to illustrate how the command to set
it work.

  Modify the Default Limit Parameters
Set the value of ulimit -n to a value much higher than 1024 to fix this issue