apache-kafka-streams

问题 I am writing a streaming application with Kafka Streams, Spring-Kafka and Spring Boot. I cannot find any information how to properly test stream processing done by Kafka Streams DSL while using Spring-Kafka. Documentation mentions EmbeddedKafkaBroker but there seems to be no information on how to handle testing for example state stores. Just to provide some simple example of what I would like to test. I have a following bean registered (where Item is avro generated): @Bean public KTable

问题 I am writing a streaming application with Kafka Streams, Spring-Kafka and Spring Boot. I cannot find any information how to properly test stream processing done by Kafka Streams DSL while using Spring-Kafka. Documentation mentions EmbeddedKafkaBroker but there seems to be no information on how to handle testing for example state stores. Just to provide some simple example of what I would like to test. I have a following bean registered (where Item is avro generated): @Bean public KTable

问题 I was looking for an example using Kafka Streams on how to do this sort of thing, i.e. join a customers table with a addresses table and sink the data to ES:- Customers +------+------------+----------------+-----------------------+ | id | first_name | last_name | email | +------+------------+----------------+-----------------------+ | 1001 | Sally | Thomas | sally.thomas@acme.com | | 1002 | George | Bailey | gbailey@foobar.com | | 1003 | Edward | Davidson | ed@walker.com | | 1004 | Anne | Kim

问题 I was looking for an example using Kafka Streams on how to do this sort of thing, i.e. join a customers table with a addresses table and sink the data to ES:- Customers +------+------------+----------------+-----------------------+ | id | first_name | last_name | email | +------+------------+----------------+-----------------------+ | 1001 | Sally | Thomas | sally.thomas@acme.com | | 1002 | George | Bailey | gbailey@foobar.com | | 1003 | Edward | Davidson | ed@walker.com | | 1004 | Anne | Kim

问题 A custom processor which buffers events in a simple java.util.List in process() - this buffer is not a state store. Every 30 seconds WALL_CLOCK_TIME, punctuate() sorts this list and flushes to the sink. Assume only single partition source and sink. EOS processing guarantee is required. I know that at any given time either process() gets executed or punctuate() gets executed. I am concerned about this buffer not being backed by changelog topic. Ideally I believe this should have been a state

问题 A custom processor which buffers events in a simple java.util.List in process() - this buffer is not a state store. Every 30 seconds WALL_CLOCK_TIME, punctuate() sorts this list and flushes to the sink. Assume only single partition source and sink. EOS processing guarantee is required. I know that at any given time either process() gets executed or punctuate() gets executed. I am concerned about this buffer not being backed by changelog topic. Ideally I believe this should have been a state

来源： https://stackoverflow.com/questions/54398754/kafka-streams-delay-to-kick-rebalancing-on-consumer-graceful-shutdown

来源： https://stackoverflow.com/questions/47458725/overloaded-method-value-table-with-alternatives

来源： https://stackoverflow.com/questions/47458725/overloaded-method-value-table-with-alternatives

来源： https://stackoverflow.com/questions/62480113/how-to-get-partitionid-and-topicname-in-kafkastream-application