Minimum Limits on File Descriptors, Processes, and Memory - spectrum_platform - 23

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.

Note: The settings listed here are the minimum limits required by Spectrum Technology Platform. You may set higher limits if it is appropriate for your environment. We document the default settings here; however, your default file names for limits may vary.

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

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

In the file /etc/security/limits.d/90-nproc.conf, comment out the nproc setting for non-root users.

Oracle Linux 8

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

In the file /etc/security/limits.d/90-nproc.conf, comment out the nproc setting for non-root users.

Oracle Linux 9

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

In the file /etc/security/limits.d/90-nproc.conf, comment out the nproc setting for non-root users.

Red Hat Enterprise 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

In the directory /etc/security/limits.d, if there is a file named similar to *nproc.conf (for example, 20-nproc.conf or 90-nproc.conf), comment out the nproc setting for non-root users.

Red Hat Enterprise Linux 8

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

In the directory /etc/security/limits.d, if there is a file named similar to *nproc.conf (for example, 20-nproc.conf or 90-nproc.conf), comment out the nproc setting for non-root users.

Red Hat Enterprise Linux 9

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

In the directory /etc/security/limits.d, if there is a file named similar to *nproc.conf (for example, 20-nproc.conf or 90-nproc.conf), comment out the nproc setting for non-root users.

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

Minimum Limits on File Descriptors, Processes, and Memory - spectrum_platform - 23 - 23.1

Spectrum Installation Guide for Linux

CentOS 7

Oracle Linux 7

Oracle Linux 8

Oracle Linux 9

Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 8

Red Hat Enterprise Linux 9

Ubuntu (All Supported Versions)