Centos 6 User Login prompts-bash:fork:resource temporarily unavailable

Operating system CentOS 6.3 Normal, one day log in to the normal user prompts as follows:
-bash:fork:resource temporarily unavailable

Checked online, because the Linux system's file restrictions cause the root user login does not have such a hint.
Then modify the system restriction configuration,/etc/security/limits.conf: as follows

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* Soft Nproc 10000 * Hard Nproc 10000 * Soft Nofile 1048576 * Hard Nofile 1048576

Verify, but the result is still set invalid

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# su-m-C ' ulimit-u ' username

It is determined that the CentOS 6.x version adds a limited configuration/etc/security/limits.d/90-nproc.conf to ensure that the root user is unrestricted. This configuration overrides the setting of the primary configuration file:

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# Default limit for number of user ' s processes to prevent # Accidental fork bombs. # RHBZ #432903 for reasoning. * Soft Nproc 1024 Root Soft Nproc Unlimited

Solution :

Back up/etc/security/limits.d/90-nproc.conf and then modify the/etc/security/limits.d/90-nproc.conf file in the 1024 line to change 1024 to 10240, the other large number.

code is as follows	copy code
# su-m-C" Ulimit-u ' username 10240