apache_kafka#
Apache Kafka Message Queue.
KafkaMessageQueueConfig #
Bases: BaseSettings
Kafka message queue configuration.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
type |
Literal[str]
|
|
'kafka'
|
url |
str
|
|
'localhost:9092'
|
host |
str | None
|
|
None
|
port |
int | None
|
|
None
|
Source code in llama_deploy/message_queues/apache_kafka.py
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KafkaMessageQueue #
Bases: BaseMessageQueue
Apache Kafka integration with aiokafka.
This class implements a traditional message broker using Apache Kafka. - Topics are created with N partitions - Consumers are registered to a single group to implement a competing consumer scheme where only one consumer subscribed to a topic gets the message - Default round-robin assignment is used
Parameters:
Name | Type | Description | Default |
---|---|---|---|
url |
str
|
|
'localhost:9092'
|
Attributes:
Name | Type | Description |
---|---|---|
url |
str
|
The broker url string to connect to the Kafka server |
Examples:
from llama_deploy.message_queues.apache_kafka import KafkaMessageQueue
message_queue = KafkaMessageQueue() # uses the default url
Source code in llama_deploy/message_queues/apache_kafka.py
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from_url_params
classmethod
#
from_url_params(host: str, port: Optional[int] = None) -> KafkaMessageQueue
Convenience constructor from url params.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
host |
str
|
host for rabbitmq server |
required |
port |
Optional[int]
|
port for rabbitmq server. Defaults to None. |
None
|
Returns:
Name | Type | Description |
---|---|---|
KafkaMessageQueue |
KafkaMessageQueue
|
An Apache Kafka MessageQueue integration. |
Source code in llama_deploy/message_queues/apache_kafka.py
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cleanup_local
async
#
cleanup_local(message_types: List[str], *args: Any, **kwargs: Dict[str, Any]) -> None
Cleanup for local runs.
Use kafka-python-ng instead of aio-kafka as latter has issues with resolving api_version with broker when using admin client.
TODO: convert to aiokafka once this it is resolved there.
Source code in llama_deploy/message_queues/apache_kafka.py
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deregister_consumer
async
#
deregister_consumer(consumer: BaseMessageQueueConsumer) -> Any
Deregister a consumer.
Source code in llama_deploy/message_queues/apache_kafka.py
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launch_local
async
#
launch_local() -> Task
Launch the message queue locally, in-process.
Launches a dummy task.
Source code in llama_deploy/message_queues/apache_kafka.py
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launch_server
async
#
launch_server() -> None
Launch server.
Source code in llama_deploy/message_queues/apache_kafka.py
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register_consumer
async
#
register_consumer(consumer: BaseMessageQueueConsumer) -> Callable[..., Coroutine[Any, Any, None]]
Register a new consumer.
Source code in llama_deploy/message_queues/apache_kafka.py
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