Splunk® Data Stream Processor

Function Reference

On April 3, 2023, Splunk Data Stream Processor reached its end of sale, and will reach its end of life on February 28, 2025. If you are an existing DSP customer, please reach out to your account team for more information.

All DSP releases prior to DSP 1.4.0 use Gravity, a Kubernetes orchestrator, which has been announced end-of-life. We have replaced Gravity with an alternative component in DSP 1.4.0. Therefore, we will no longer provide support for versions of DSP prior to DSP 1.4.0 after July 1, 2023. We advise all of our customers to upgrade to DSP 1.4.0 in order to continue to receive full product support from Splunk.

Get data from Apache Pulsar

Use the Apache Pulsar source function to get data from an Apache Pulsar topic.


Before you can use this function, you must create a connection. See Create a DSP connection to Apache Pulsar in the Connect to Data Sources and Destinations with the manual. When configuring this source function, set the connection_id argument to the ID of that connection.

Function output schema

This function outputs records with the schema described in the following table.

Key Description
key The key of the record as a string.
value The payload of the record in bytes.
topic The name of the Pulsar topic where the record is stored, given as a string.
messageId The message ID of the record, given as a string.

The following is an example of a typical record from the pulsar function:

"key": "my-key",
"value": "aGVsbG8gd29ybGQ=",
"topic": "my-pulsar-topic",
"messageId": 1:24

Required arguments

Syntax: string
Description: The ID of your Pulsar connection.
Example in Canvas View: my-pulsar-connection
Syntax: string
Description: The name of the Pulsar topic.
Example in Canvas View: my-pulsar-topic

SPL2 example

When working in the SPL View, you can write the function by providing the arguments in this exact order.

| from pulsar("my-connection-id", "my-topic") |...;

Alternatively, you can use named arguments to declare arguments in any order. The following SPL2 example uses named arguments to specify the topic argument before the connection_id argument.

| from pulsar(topic: "my-topic", connection_id: "my-connection-id") |...;

If you want to use a mix of unnamed and named arguments in your functions, you must list all unnamed arguments in the correct order before providing the named arguments.

Last modified on 19 April, 2021
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This documentation applies to the following versions of Splunk® Data Stream Processor: 1.2.0, 1.2.1-patch02, 1.2.1, 1.2.2-patch02, 1.2.4, 1.2.5, 1.3.0, 1.3.1, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4

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