Stream Processing

ksqlDB ksqlDB is the event streaming database purpose-built for stream processing applications. It’s available both as a managed service in Confluent Cloud, or you can run it yourself. Apache Flink® Let’s talk about about Apache Flink®! Kafka Streams Kafka Streams is a client library for building applications and microservices, where the input and output data are stored in an Apache Kafka® cluster. It combines the simplicity of writing and deploying standard Java and Scala applications on the client side with the benefits of Kafka’s server-side cluster technology.

Topic	Replies	Views	Activity
About the Stream Processing category Stream Processing	0	1964	25 May 2023
Multiple consumers, single partition Stream Processing	1	16	18 June 2025
Performance impact of filtering out unnecessary records from KTable before joining Kafka Streams	3	17	28 May 2025
Concurrent message processing Kafka Streams	4	30	28 May 2025
Adding in Strimzi Callback Handler ksqlDB	0	14	27 May 2025
Passthrough null values Kafka Streams	2	18	25 May 2025
Change of how global-store is read from kafka in kafka-streams 3.8.1 Kafka Streams	9	73	25 May 2025
Global Ktable changelog topic retention vs Kafka topic retention Kafka Streams	12	62	25 May 2025
Custom names for intermediate FK-Join topics Kafka Streams	4	25	13 May 2025
Kafka Streams - How to destroy prototype bean Kafka Streams	0	14	12 May 2025
Json Schema Serde not publishing to topic Kafka Streams	3	23	11 May 2025
Kafka events for the same key landing on different pods post-migration causing inconsistent processing Kafka Streams	2	19	8 May 2025
Tumbling window and suppress Kafka Streams	8	77	8 May 2025
ARM64 container image? ksqlDB	1	16	1 June 2025
KTable-KTable foreign key join emits null values when no right matching key found Kafka Streams	3	26	25 April 2025
Properties with and without "consumer." prefix Kafka Streams	3	26	24 April 2025
CompleteBatch Infinite Loop With BatchSize Greater Than 1 Kafka Streams	3	32	7 April 2025
"Kafka for Storing and Streaming Messages in a Large-Scale Chat Application – Best Practices?" Kafka Streams	0	20	5 April 2025
How can I read from versioned ktable Kafka Streams	2	22	1 April 2025
A System Architecture Help Stream Processing	0	14	30 March 2025
Raising error to the application since no reset policy is configured Kafka Streams	2	27	20 March 2025
ksqlDB not starting locally ksqlDB	4	50	19 March 2025
Problem with missing null propagation on inner KTable-KTable join Kafka Streams	7	431	11 March 2025
Ksqldb table key and value with avro schema serialization error ksqlDB	1	15	6 April 2025
Detected out-of-order KTable update(for foreign key join) Kafka Streams	5	551	27 February 2025
Kafka Streams Prefix Scan not returning expected data Kafka Streams	3	70	11 February 2025
Using Intermediate Topics for DLQs Kafka Streams	4	40	11 February 2025
ksqlDB is not starting ksqlDB	6	47	9 March 2025
Extract kafka record key and add it to record value ksqlDB	2	73	23 February 2025
Throughput &metrics Kafka Streams	0	49	24 January 2025