ActiveGate hardware and system requirements for Linux

This topic explains the hardware and operating system requirements for installing ActiveGate on Linux.

Synthetic-enabled ActiveGates support a subset of operating systems. See System and hardware requirements for synthetic-enabled ActiveGates.

Hardware requirements

You need a machine dedicated to ActiveGate that has:

  • 2 GB free disk space
  • 2 GB RAM (4 GB recommended)
  • 1 dual core processor

For large environments, you may need to use a machine with additional CPU and memory.

We recommend

For optimal performance, we strongly recommend that you install and run the ActiveGate on a dedicated system.

The required free disk space includes minimum space for specific log directories:

Default Path Description ActiveGate Minimum disk space

ActiveGate core logs:


Environment ActiveGate &
Cluster ActiveGate
300 MB

HTTP checks/Synthetic logs:

engine logs
engine installation logs
engine wrapper logs
player logs

Environment ActiveGate &
Cluster ActiveGate
1 GB
Remote Plugin Module logs Environment ActiveGate only 500 MB
/var/log/dynatrace/zremote/log ZRemote logs Environment ActiveGate &
Cluster ActiveGate
200 MB

Synthetic-enabled ActiveGates and ActiveGates running zRemote module are more demanding in terms of hardware requirements. See:

System requirements

  • Ensure that you have proper network port configuration.
  • ActiveGate supports only operating systems running on the x86-64 architecture (64-bit Intel/AMD).
Future support changes

Linux requirements

  • Your operating system must handle at least 500,000 open files for the dtuserag user.
    To view the system limit, execute the following command:

    [user@host]# cat /proc/sys/fs/file-max

    Also, it may be that you've checked out too many open files in Linux.

  • Your operating system must have at least 20,000 processes available to the dtuserag user.
    To view the system limit, execute the following command:

    [user@host]# cat /proc/sys/kernel/pid_max
  • The ActiveGate Linux installer doesn't support ACL (Access Control List). ACL rules may prohibit access to installer-created directories and files, making the ActiveGate fail to start. If you use the ACL, rules related to the installation directories defined in the following parameters should be disabled:


Supported Linux distributions

Linux distribution Versions CPU architecture
Amazon Linux 2014.03, 2017.09 x86-64
Amazon Linux 2 All versions supported x86-64
CentOS 7.x, 8.x x86-64
Red Hat Enterprise Linux 6.x, 7.x, 8.x x86-64
SUSE Enterprise Linux 15.1, 15.2 x86-64
Ubuntu 14.04, 16.04, 18.04, 20.04 x86-64

Sizing guide

The following table represents the machine instance size requirement based on number of OneAgents communicating with the ActiveGate. On each host, OneAgent is performing seven monitoring tasks:

  • Infrastructure monitoring
  • Log monitoring
  • Full-stack monitoring of 3 Apache Tomcat instances
  • Full-stack monitoring of 2 Apache HTTP Server instances
Machine size Number of hosts Number of agents on one host
c4.large 450 7
c4.xlarge 900 7
c4.2xlarge 1200 7

The C4 machine instances included in the estimates:

Instance vCPU Mem (GiB) Storage Dedicated EBS bandwidth (Mbps) Network performance
c4.large 2 3.75 EBS-Only 500 Moderate
c4.xlarge 4 7.5 EBS-Only 750 High
c4.2xlarge 8 15 EBS-Only 1,000 High