Minimum Limits on File Descriptors, Processes, and Memory
In order for the Spectrum™ Technology Platform server to run, you must increase the allowed limits on file descriptors, processes, and other entities from their default limits. You must have root access to make these changes.
AIX (All Supported Versions)
In the file /etc/security/limits, change this setting for the default user, or for a specific user if nofiles is specified for specific users.
nofiles = 131072
CentOS 5
CentOS 6
- Specify these settings in
/etc/security/limits.conf:
* soft nofile 65536 * hard nofile 131072 * soft nproc 4096 * hard nproc 65536
- Specify this setting in /etc/sysctl.conf or
/etc/sysctl.d/99-sysctl.conf, depending on which file you use on your
system:
vm.max_map_count = 262144
After specifying these settings, apply them by running one of these commands:
- If you use sysctl.conf, run this command:
sysctl -p.
- If you use sysctl.d, run this command:
systemctl restart systemd-sysctl
- If you use sysctl.conf, run this command:
- In the file /etc/security/limits.d/90-nproc.conf, comment out the nproc setting for non-root users.
CentOS 7
- Specify these settings in
/etc/security/limits.conf:
* soft nofile 65536 * hard nofile 131072 * soft nproc 4096 * hard nproc 65536
- Specify this setting in /etc/sysctl.conf or
/etc/sysctl.d/99-sysctl.conf, depending on which file you use on your
system:
vm.max_map_count = 262144
After specifying these settings, apply them by running one of these commands:
- If you use sysctl.conf, run this command:
sysctl -p.
- If you use sysctl.d, run this command:
systemctl restart systemd-sysctl
- If you use sysctl.conf, run this command:
- In the file /etc/security/limits.d/20-nproc.conf, comment out the nproc setting for non-root users.
HP-UX (All Supported Versions)
Set the maximum number of file descriptors by running these commands:
kctune maxfiles_lim=131072
kctune maxfiles=65536
In order for the maxfiles setting to take effect you must reboot the server.
Oracle Linux 6
- Specify these settings in
/etc/security/limits.conf:
* soft nofile 65536 * hard nofile 131072 * soft nproc 4096 * hard nproc 65536
- Specify this setting in /etc/sysctl.conf or
/etc/sysctl.d/99-sysctl.conf, depending on which file you use on your
system:
vm.max_map_count = 262144
After specifying these settings, apply them by running one of these commands:
- If you use sysctl.conf, run this command:
sysctl -p.
- If you use sysctl.d, run this command:
systemctl restart systemd-sysctl
- If you use sysctl.conf, run this command:
- In the file /etc/security/limits.d/90-nproc.conf, comment out the nproc setting for non-root users.
Oracle Linux 7
- Specify these settings in
/etc/security/limits.conf:
* soft nofile 65536 * hard nofile 131072 * soft nproc 4096 * hard nproc 65536
- Specify this setting in /etc/sysctl.conf or
/etc/sysctl.d/99-sysctl.conf, depending on which file you use on your
system:
vm.max_map_count = 262144
After specifying these settings, apply them by running one of these commands:
- If you use sysctl.conf, run this command:
sysctl -p.
- If you use sysctl.d, run this command:
systemctl restart systemd-sysctl
- If you use sysctl.conf, run this command:
- In the file /etc/security/limits.d/20-nproc.conf, comment out the nproc setting for non-root users.
Red Hat Enterprise Linux 5
- Specify these settings in
/etc/security/limits.conf:
* soft nofile 65536 * hard nofile 131072 * soft nproc 4096 * hard nproc 65536
- Specify this setting in /etc/sysctl.conf or
/etc/sysctl.d/99-sysctl.conf, depending on which file you use on your
system:
vm.max_map_count = 262144
After specifying these settings, apply them by running one of these commands:
- If you use sysctl.conf, run this command:
sysctl -p.
- If you use sysctl.d, run this command:
systemctl restart systemd-sysctl
- If you use sysctl.conf, run this command:
Red Hat Enterprise Linux 6
- Specify these settings in
/etc/security/limits.conf:
* soft nofile 65536 * hard nofile 131072 * soft nproc 4096 * hard nproc 65536
- Specify this setting in /etc/sysctl.conf or
/etc/sysctl.d/99-sysctl.conf, depending on which file you use on your
system:
vm.max_map_count = 262144
After specifying these settings, apply them by running one of these commands:
- If you use sysctl.conf, run this command:
sysctl -p.
- If you use sysctl.d, run this command:
systemctl restart systemd-sysctl
- If you use sysctl.conf, run this command:
- In the file /etc/security/limits.d/90-nproc.conf, comment out the nproc setting for non-root users.
Red Hat Enterprise Linux 7.1
- Specify these settings in
/etc/security/limits.conf:
* soft nofile 65536 * hard nofile 131072 * soft nproc 4096 * hard nproc 65536
- Specify this setting in /etc/sysctl.conf or
/etc/sysctl.d/99-sysctl.conf, depending on which file you use on your
system:
vm.max_map_count = 262144
After specifying these settings, apply them by running one of these commands:
- If you use sysctl.conf, run this command:
sysctl -p.
- If you use sysctl.d, run this command:
systemctl restart systemd-sysctl
- If you use sysctl.conf, run this command:
- In the file /etc/security/limits.d/20-nproc.conf, comment out the nproc setting for non-root users.
Solaris (All Supported Versions)
Set the maximum number of file descriptors for the user running Spectrum™ Technology Platform. Here is an example of how to set this limit at the project level:
projmod -s -K "process.max-file-descriptor=(basic,131072,deny),(privileged,262144,deny)" default
You can also set the limit at the group or user level, if appropriate for your environment.
SUSE Enterprise Linux Server (All Supported Versions)
Set these settings in /etc/security/limits.conf:
* soft nofile 65536
* hard nofile 131072
* soft nproc 4096
* hard nproc 65536
* soft as unlimited
* hard as unlimited
Set this setting in /etc/sysctl.conf or /etc/sysctl.d/99-sysctl.conf, depending on which file you use on your system:
vm.max_map_count = 262144
If you use sysctl.conf, run this command:
sysctl -p.
If you use sysctl.d, run this command:
systemctl restart systemd-sysctl
Ubuntu (All Supported Versions)
- Specify these settings in
/etc/security/limits.conf:
* soft nofile 65536 * hard nofile 131072 * soft nproc 4096 * hard nproc 65536
- Specify this setting in /etc/sysctl.conf or
/etc/sysctl.d/99-sysctl.conf, depending on which file you use on your
system:
vm.max_map_count = 262144
After specifying these settings, apply them by running one of these commands:
- If you use sysctl.conf, run this command:
sysctl -p.
- If you use sysctl.d, run this command:
systemctl restart systemd-sysctl
- If you use sysctl.conf, run this command: