Hi Purplezorz,
By default, on the SRX240H2 maximum processes is set to 276.
jtac-SRX240H2% sysctl -a | grep kern.max
kern.maxvnodes: 64996
kern.maxproc: 276 <<<<
kern.maxfiles: 2500
kern.maxfilesperproc: 2500
kern.maxprocperuid: 248
kern.maxdsiz: 671088640
kern.maxusers: 16
So when this is exceeded you start to see the error messages in the logs indication the process that has probably causing it.
In this case, it seems to be the swapper process based on the logs messages seen. Ways to resolve this would probably be either gracefully restarting the SRXs one at a time or killing this process which should restart automatically.
In either ways, if these SRXs are in production please plan to do so in a MW to avoid any downtime.
If the issue persists, then please open a JTAC case for further investigation.
Please Mark My Solution Accepted if it Helped, Kudos are Appreciated too!!!
Regards,
HS