linux - "Max open files" for working process

Question

Is it possible to increase "Max open files" parameter for working process ? I mean this parameter:

cat /proc/<pid>/limits | grep files

Thanks for your advices

Answer 1

As a system administrator: The /etc/security/limits.conf file controls this on most Linux installations; it allows you to set per-user limits. You'll want a line like myuser - nofile 1000.

Within a process: The getrlimit and setrlimit calls control most per-process resource allocation limits. RLIMIT_NOFILE controls the maximum number of file descriptors. You will need appropriate permissions to call it.