Deployment requirements

This topic covers Splunk App for Stream hardware and software requirements. For a list of network protocols that Splunk App for Stream supports, see Supported Protocols in this manual.

Hardware requirements

Before you install Splunk App for Stream, make sure that your underlying Splunk Enterprise deployment meets the requirements specified in Introduction to capacity planning for Splunk Enterprise in the Splunk Enterprise Capacity Planning Manual.

For baseline Splunk Enterprise hardware requirements, see Reference hardware in the Splunk Enterprise Capacity Planning Manual. Depending on the volume of network data that you plan to capture and index, additional resources might be required.

For information on Splunk App for Stream performance, see Performance test results and recommendations in this manual.

Supported operating systems

Splunk App for Stream 6.2.0 and later supports the following operating systems:

Linux

• Linux kernel version 2.6.x or later (32- and 64-bit).
• Red Hat Enterprise Linux 5 or later
• CentOS 5 or later
• Ubuntu 10 or later
• Debian 5 or later

Note: Independent Stream Forwarder installation is supported on 64-bit Linux (RHEL and Ubuntu) only.

Caution: Default Linux kernel settings are not sufficient for high-volume packet capture. Using these settings can cause missing packets and data loss. We recommend that you add the following kernel settings to your /etc/sysctl.conf file:

# increase kernel buffer sizes for reliable packet capture
net.core.rmem_default = 33554432
net.core.rmem_max = 33554432
net.core.netdev_max_backlog = 10000

Then run the following to reload the settings:

/sbin/sysctl -p

Mac OSX

• Mac OSX version 10.8 or later.

Windows

• Windows Server 2008R2 and later (64-bit).
• Windows 7 (64-bit) Professional, Enterprise, and Ultimate editions.

Splunk App for Stream supports Local System and Administrator accounts only on Windows. For more information, see How the System account is used in Windows.

Splunk Enterprise version requirements

Splunk App for Stream runs on Splunk Enterprise. Before you install Splunk App for Stream, make sure that you are running the appropriate version of Splunk Enterprise.

Splunk App for Stream version 6.4.x and 6.5.0 require Splunk Enterprise version 6.3.0 or later.

For search head clustering, Splunk App for Stream version 6.5.0 requires Splunk Enterprise version 6.3.1 or later.

Independent deployment of the stream forwarder (streamfwd) 6.5.0 binary on a search head requires Splunk Enterprise version 6.3.1 or later.

Download Splunk Enterprise.

Splunk Enterprise component requirements

In a distributed Splunk Enterprise environment, you must install Splunk App for Stream on universal forwarders, indexers, and search heads, as applicable to your deployment. For details on Splunk App for Stream component requirements, see Deployment architectures in this manual.

Supported browsers

Splunk App for Stream 6.2.0 and later supports these browsers:

• Chrome (latest)
• Safari (latest)
• Firefox (latest) (version 10.x is not supported)
• Internet Explorer 9 or later. Internet Explorer version 9 is not supported in compatibility mode.

License requirements

Splunk app for Stream does not require a separate license. You can install and use Splunk App for Stream on Splunk Enterprise with a single Splunk Enterprise license.

Splunk Enterprise licenses are based on the amount of data stored by your Splunk indexers per day. For more information, see How Splunk licensing works in the Splunk Enterprise Admin Manual.