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Default arguments of CLI

You can use function-related commands in the pulsar-admin CLI to deploy functions. Pulsar provides a variety of commands, such as:

The following table lists the parameters required in CLI and their default values.

ParameterDefault value
Function nameN/A
You can specify any value for the function name (except org, library, or similar class names).
TenantN/A
The value is derived from the name of the input topics. For example, if the input topic form is persistent://marketing/{namespace}/{topicName}, the tenant name is marketing.
NamespaceN/A
The value is derived from the input topic name. If the input topic form is persistent://marketing/asia/{topicName}, the namespace is asia.
Output topic{input topic}-{function name}-output. For example, if an input topic name of a function is incoming and the function name is exclamation, the output topic name is incoming-exclamation-output.
Processing guaranteesATLEAST_ONCE
Pulsar service URLpulsar://localhost:6650

Take the create command for example. The following function has default values for the function name (MyFunction), tenant (public), namespace (default), subscription type (SHARED), processing guarantees (ATLEAST_ONCE), and Pulsar service URL (pulsar://localhost:6650).


bin/pulsar-admin functions create \
--jar my-pulsar-functions.jar \
--classname org.example.MyFunction \
--inputs my-function-input-topic1,my-function-input-topic2