10 More Discussions You Might Find Interesting
1. Solaris
A coredump is being created by one of our applications on Solaris server and occupying entire space on the mount, thereby bringing down the application.
While we try to identify the root cause, i tried to limit to limit the size of the core dump.
Executed below command in shell and also updated... (2 Replies)
Discussion started by: kesani
2 Replies
2. AIX
Hi,
Our application team is asking me to set ulimit parameter in my AIX 6.1 TL8 box.
Some of them i set already.
address space limit (kbytes) (-M) unlimited
locks (-L) unlimited
locked address space (kbytes) (-l) 64
nice (-e) ... (3 Replies)
Discussion started by: sunnybee
3 Replies
3. Solaris
Trying to figure out the best method of security for oracle user accounts. In Solaris 10 they are set as regular users but have nologin set forcing the dev's to login as themselves and then su to the oracle users.
In Solaris11 we have the option of making it a role because RBAC is enabled but... (1 Reply)
Discussion started by: os2mac
1 Replies
4. Red Hat
The root user runs the following
ulimit -a | grep open
and gets a result of
open files (-n) 8162
A user runs the same command and gets a result of
open files (-n) 2500
How can you set the ulimit of the user to... (2 Replies)
Discussion started by: jsanders
2 Replies
5. Solaris
Hello, could you help me please?
I write in command line: "ulimit 500"
-> i've set the max size of 512-bytes blocks that i can write in one file.
But when after it i use ulimit.3c in my program: "ulimit(UL_GETFSIZE);"
the result turns out 1000. Why is it so? They always differ so that one is... (2 Replies)
Discussion started by: Zhenya_
2 Replies
6. UNIX for Advanced & Expert Users
All,
Our SA is considering setting the max open files from 2048 to 30K. This sounds like a drastic change. Does anybody have an idea of the negative impacts of increasing the open files too high? Would like to know if this change could negatively impact our system. What test should we run to... (2 Replies)
Discussion started by: wcrober
2 Replies
7. Solaris
how do i check the ulimit set on my server..
ca i know whats the command ??
thanks in advance .. (5 Replies)
Discussion started by: expert
5 Replies
8. UNIX for Advanced & Expert Users
I changed the standard Ulimit sometime back. But when I change it back, the setting does not get updated.
How do I make the change permanent
Waitstejo (7 Replies)
Discussion started by: Waitstejo
7 Replies
9. Shell Programming and Scripting
How do i set ulimit for user (4 Replies)
Discussion started by: Krrishv
4 Replies
10. Solaris
How do you make the ulimit values permanent for a user?
by default, the root login has the following ulimits:
# ulimit -a
time(seconds) unlimited
file(blocks) unlimited
data(kbytes) unlimited
stack(kbytes) 8192
coredump(blocks) unlimited
nofiles(descriptors) 1024
memory(kbytes)... (2 Replies)
Discussion started by: kiem
2 Replies
ulimit(2) System Calls ulimit(2)
NAME
ulimit - get and set process limits
SYNOPSIS
#include <ulimit.h>
long ulimit(int cmd, /* newlimit */...);
DESCRIPTION
The ulimit() function provides for control over process limits. It is effective in limiting the growth of regular files. Pipes are limited
to PIPE_MAX bytes.
The cmd values, defined in <ulimit.h>, include:
UL_GETFSIZE Return the soft file size limit of the process. The limit is in units of 512-byte blocks and is inherited by child pro-
cesses. Files of any size can be read. The return value is the integer part of the soft file size limit divided by 512. If
the result cannot be represented as a long int, the result is unspecified.
UL_SETFSIZE Set the hard and soft file size limits for output operations of the process to the value of the second argument, taken as a
long int. Any process may decrease its own hard limit, but only a process with appropriate privileges may increase the
limit. The new file size limit is returned. The hard and soft file size limits are set to the specified value multiplied by
512. If the result would overflow an rlimit_t, the actual value set is unspecified.
UL_GMEMLIM Get the maximum possible break value (see brk(2)).
UL_GDESLIM Get the current value of the maximum number of open files per process configured in the system.
RETURN VALUES
Upon successful completion, ulimit() returns the value of the requested limit. Otherwise, -1 is returned, the limit is not changed, and
errno is set to indicate the error.
ERRORS
The ulimit() function will fail if:
EINVAL The cmd argument is not valid.
EPERM A process that has not asserted {PRIV_SYS_RESOURCE} in its effective set is trying to increase its file size limit.
USAGE
Since all return values are permissible in a successful situation, an application wishing to check for error situations should set errno to
0, then call ulimit(), and if it returns -1, check if errno is non-zero.
The getrlimit() and setrlimit() functions provide a more general interface for controlling process limits, and are preferred over ulimit().
See getrlimit(2).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO
brk(2), getrlimit(2), write(2), attributes(5), privileges(5), standards(5)
SunOS 5.10 1 Feb 2003 ulimit(2)
