The following binder, consumer, and producer properties are specific to binder implementations.
By default, the RabbitMQ binder uses Spring Boot’s ConnectionFactory, and it therefore supports all Spring Boot configuration options for RabbitMQ.
(For reference, consult the Spring Boot documentation.) RabbitMQ configuration options use the spring.rabbitmq prefix.
In addition to the Spring Boot options, the RabbitMQ binder supports the following properties:
A comma-separated list of RabbitMQ management plugin URLs.
Only used when nodes contains more than one entry.
Each entry in this list must have a corresponding entry in spring.rabbitmq.addresses.
Default: empty.
A comma-separated list of RabbitMQ node names.
When more than one entry, used to locate the server address where a queue is located.
Each entry in this list must have a corresponding entry in spring.rabbitmq.addresses.
Default: empty.
Compression level for compressed bindings.
See java.util.zip.Deflater.
Default: 1 (BEST_LEVEL).
The following properties are available for Rabbit consumers only and
must be prefixed with spring.cloud.stream.rabbit.bindings.<channelName>.consumer..
The acknowledge mode.
Default: AUTO.
Whether to automatically declare the DLQ and bind it to the binder DLX.
Default: false.
Whether subscription should be durable.
Only effective if group is also set.
Default: true.
1.Prefetch count.
Default: 1.
A prefix to be added to the name of the destination and queues.
Default: "".
Whether delivery failures should be requeued.
Default: true.
The request headers to be transported.
Default: [STANDARD_REQUEST_HEADERS,'*'].
The reply headers to be transported.
Default: [STANDARD_REQUEST_HEADERS,'*'].
true, the bus will republish failed messages to the DLQ with additional headers, including the exception message and stack trace from the cause of the final failure.Whether to use transacted channels.
Default: false.
The number of deliveries between acks.
Default: 1.
The following properties are available for Rabbit producers only and
must be prefixed with spring.cloud.stream.rabbit.bindings.<channelName>.producer..
Whether to automatically declare the DLQ and bind it to the binder DLX.
Default: false.
Whether to enable message batching by producers.
Default: false.
The number of messages to buffer when batching is enabled.
Default: 100.
10000.5000.Whether data should be compressed when sent.
Default: false.
Delivery mode.
Default: PERSISTENT.
A prefix to be added to the name of the destination exchange.
Default: "".
The request headers to be transported.
Default: [STANDARD_REQUEST_HEADERS,'*'].
The reply headers to be transported.
Default: [STANDARD_REQUEST_HEADERS,'*'].
A list of brokers to which the Kafka binder will connect.
Default: localhost.
brokers allows hosts specified with or without port information (e.g., host1,host2:port2).
This sets the default port when no port is configured in the broker list.
Default: 9092.
A list of ZooKeeper nodes to which the Kafka binder can connect.
Default: localhost.
zkNodes allows hosts specified with or without port information (e.g., host1,host2:port2).
This sets the default port when no port is configured in the node list.
Default: 2181.
The list of custom headers that will be transported by the binder.
Default: empty.
The frequency, in milliseconds, with which offsets are saved.
Ignored if 0.
Default: 10000.
The frequency, in number of updates, which which consumed offsets are persisted.
Ignored if 0.
Mutually exclusive with offsetUpdateTimeWindow.
Default: 0.
The following properties are available for Kafka consumers only and
must be prefixed with spring.cloud.stream.kafka.bindings.<channelName>.consumer..
Whether to autocommit offsets when a message has been processed.
If set to false, an Acknowledgment header will be available in the message headers for late acknowledgment.
Default: true.
Whether to reset offsets on the consumer to the value provided by startOffset.
Default: false.
The starting offset for new groups, or when resetOffsets is true.
Allowed values: earliest, latest.
Default: null (equivalent to earliest).
The minimum number of partitions expected by the consumer if it creates the consumed topic automatically.
Default: 1.
The following properties are available for Kafka producers only and
must be prefixed with spring.cloud.stream.kafka.bindings.<channelName>.producer..
Upper limit, in bytes, of how much data the Kafka producer will attempt to batch before sending.
Default: 16384.
Whether the producer is synchronous.
Default: false.
How long the producer will wait before sending in order to allow more messages to accumulate in the same batch. (Normally the producer does not wait at all, and simply sends all the messages that accumulated while the previous send was in progress.) A non-zero value may increase throughput at the expense of latency.
Default: 0.