open files

ust · 11-21-2008, 02:26 AM

last week , I use the command ulimit -n to set the open files to 10240 in my RH server , but todoy I found that this setting changed to 1024 , I wonder why this file will be changed to a lower value ? 10240 is the default value ?
how can I know what is my default value ? will the value be auto adjusted if the system detect the open files changes ?

pinniped · 11-21-2008, 02:48 AM

The system admin has control over the maximum number of open files a user can have in the shell. So even if a user requests 65535 simultaneous open files, this just won't happen unless the admin allows it. There may also be some other limitations in the kernel itself (size of the array used by 'select()' for example) which may impose yet another limit.

ust · 11-23-2008, 05:35 AM

Quote:

Originally Posted by pinniped

The system admin has control over the maximum number of open files a user can have in the shell. So even if a user requests 65535 simultaneous open files, this just won't happen unless the admin allows it. There may also be some other limitations in the kernel itself (size of the array used by 'select()' for example) which may impose yet another limit.

thx ,

so how can I know what is my default setting ? thx