You can use the default configurations of thread runtime in the conf/functions_worker.yml file. If you want to customize parameters, such as thread group name, refer to the following example.
functionRuntimeFactoryClassName: org.apache.pulsar.functions.runtime.thread.ThreadRuntimeFactory functionRuntimeFactoryConfigs: threadGroupName: "Your Function Container Group"
To set the client memory limit for thread runtime, you can configure pulsarClientMemoryLimit.
functionRuntimeFactoryConfigs: # pulsarClientMemoryLimit # # the max memory in bytes the pulsar client can use # absoluteValue: # # the max memory the pulsar client can use as a percentage of max direct memory set for JVM # percentOfMaxDirectMemory:
:::note
If absoluteValue and percentOfMaxDirectMemory are both set, the smaller value is used.
:::