spring-cloud-stream

问题 I created a custom Spring Cloud Stream Processor Application and deployed it as the processor step in a Source|Processor|Sink stream. Everything seems to be working fine, but my custom app shows "deploying" in the dataflow UI. I'm deploying it as a SNAPSHOT from mavenLocal if that affects anything. Am I missing something to let SCDF know the deployment was successful? 回答1: The usual culprit, in this case, is the unavailability of Boot's actuator endpoints at runtime. More specifically, it is

问题 I have a service, which receives different structured messages from different message queues. Having @StreamListener conditions we can choose at every message type how that message should be handled. As an example: We receive two different types of messages, which have different header fields and values e.g. Incoming from "order" queue: Order1: { Header: {catalog:groceries} } Order2: { Header: {catalog:tools} } Incoming from "shipment" queue: Shipment1: { Header: {region:Europe} } Shipment2:

问题 I'm working on Spring Cloud Stream using RabbitMQ using Spring Boot v2.2.6.RELEASE . Error: java.lang.IllegalStateException: Error processing condition on org.springframework.cloud.stream.config.BindingServiceConfiguration at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:60) ~[spring-boot-autoconfigure-2.2.6.RELEASE.jar:2.2.6.RELEASE] at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:108) ~

问题 We have scenario where our application(spring boot, spring-cloud-stream based) listens to multiple Kafka topics (TOPIC_A with 3 partitions, TOPIC_B with 1 partition,TOPIC_C with 10 partitions) i.e. 3 @StreamListener methods. @StreamListener(TopicASink.INPUT) public void processTopicA(Message<String> msg) { logger.info("** recieved message: {} ", msg.getPayload()); // do some processing } @StreamListener(TopicBSink.INPUT) public void processTopicB(Message<String> msg) { logger.info("**

问题 I have a spring boot kafka stream application with 2 topics consider topics A and B.Topic A has 16 partition and Topic B has 1 partition.Consider the application is deployed in 1 instance having num.stream.threads =16. I ran kafka-consumer-groups.bat command to check how the threads are assigned to the partition in group,got the following output.Topic A and B assigned with 16 threads where 14 threads in topic B is idle. kafka-consumer-groups.bat --bootstrap-server 0.0.0.0:9092 --group <topic

问题 I have a spring boot kafka stream application with 2 topics consider topics A and B.Topic A has 16 partition and Topic B has 1 partition.Consider the application is deployed in 1 instance having num.stream.threads =16. I ran kafka-consumer-groups.bat command to check how the threads are assigned to the partition in group,got the following output.Topic A and B assigned with 16 threads where 14 threads in topic B is idle. kafka-consumer-groups.bat --bootstrap-server 0.0.0.0:9092 --group <topic

问题 I am trying a poc with Spring cloud dataflow streams and have the the application iis running in Pivotal Cloud Foundry. Trying the same in kubernetes and the spring dataflow server dashboard is not loading.Debugged the issue and found the root cause is when the dashboard is loaded, its trying to hit the Skipper rest end point /api and this returns a response with the urls of other end points in skipper but the return urls are all in http. How can i force skipper to return https urls instead

问题 I am trying a poc with Spring cloud dataflow streams and have the the application iis running in Pivotal Cloud Foundry. Trying the same in kubernetes and the spring dataflow server dashboard is not loading.Debugged the issue and found the root cause is when the dashboard is loaded, its trying to hit the Skipper rest end point /api and this returns a response with the urls of other end points in skipper but the return urls are all in http. How can i force skipper to return https urls instead

问题 I am providing new software design and going to use RabbitMQ as messaging bus along with Spring Cloud Stream. One of the issues is that the developers cannot install Erlang or RabbitMQ on the local machine. Spring Cloud stream do not support ActiveMQ. Is there anyway I can install queue on local machine and use that while use RabbitMQ in the unix environment? 回答1: A good option is run rabbitmq in a docker container on the local machine. You could use a rabbitmq image already published on

问题 I am providing new software design and going to use RabbitMQ as messaging bus along with Spring Cloud Stream. One of the issues is that the developers cannot install Erlang or RabbitMQ on the local machine. Spring Cloud stream do not support ActiveMQ. Is there anyway I can install queue on local machine and use that while use RabbitMQ in the unix environment? 回答1: A good option is run rabbitmq in a docker container on the local machine. You could use a rabbitmq image already published on