Splunk Stream

Installation and Configuration Manual

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Configure universal forwarder for use with Stream

Send data to _internal index

To send data from Splunk_TA_stream to your _internal index and to populate Splunk App for Stream dashboards, you must manually configure the universal forwarder, as follows:

1. Edit $SPLUNK_HOME/etc/system/local/outputs.conf.

2. Add the following stanza:

[tcpout]
forwardedindex.2.whitelist = (_audit|_introspection|_internal)

For more information, see "Configure forwarders with outputs.conf" in the Forwarding Data manual.

Manage Splunk_TA_stream stats data

Splunk_TA_stream (Stream forwarder) sends operational statistics and log data to _internal index. Splunk App for Stream uses this data to populate built-in dashboards, including the Stream Estimate dashboard.

There are three event types that Splunk_TA_stream sends to _internalindex:

  • stream:stats
  • stream:log
  • streamfwd*


The streamfwd* event type comes from the stream forwarder's local log file. The forwarder monitors that log file along with other files in the $SPLUNK_HOME/var/log/splunk/ directory. Though it is useful for troubleshooting locally, the data that streamfwd* contains is the same as the data that stream:log contains. Therefore, you can safely blacklist the streamfwd* event type to avoid indexing duplicate data.

For more information, see "Whitelist- or blacklist-specific incoming data" in the Getting Data In manual.

Modify universal forwarder data limits

By default, the Splunk universal forwarder sends a maximum of 256 Kbps of data to your Splunk indexers. Depending on your streamfwd process throughput and configuration, Splunk_TA_stream might generate more data than this.

To modify or remove the default universal forwarder limit:

1. Edit $SPLUNK_HOME/etc/apps/SplunkUniversalForwarder/local/limits.conf.

2. Modify the [thruput] stanza. For example:

[thruput]
maxKBps = 0
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This documentation applies to the following versions of Splunk Stream: 6.3.0, 6.3.1, 6.3.2, 6.4.0


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