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Soft and hard limits for nproc value in /etc/security/limits.conf file (Linux )

 
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Top Forums UNIX for Dummies Questions & Answers Soft and hard limits for nproc value in /etc/security/limits.conf file (Linux )
# 1  
Old 07-13-2015
Soft and hard limits for nproc value in /etc/security/limits.conf file (Linux )
OS version : RHEL 6.5

Below is an excerpt from /etc/security/limits.conf file for OS User named appusr in our server
Code:
appusr soft nproc 2047
appusr hard nproc 16384

What will happen if appusr has already spawned 2047 processes and wants to spawn 2048th process ?

I just want to know the impact of breaching the soft limit of 2047
# 2  
Old 07-14-2015
Depends on how you have PAM configured. If you do not have a line like
Code:
session required pam_limits.so

in your /etc/pam.d/system-auth, nothing will happen.
This User Gave Thanks to fpmurphy For This Post:
kraljic
# 3  
Old 07-14-2015
If you hit the limit then further fork(),clone() etc. are denied and return EAGAIN.
This User Gave Thanks to MadeInGermany For This Post:
kraljic
# 4  
Old 07-14-2015
Thank You fpmurphy, MadeinGermany
 
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