spring-cloud-stream-kafka | Fancy Dress Worker Service : Event Driven Microservice | Pub Sub library

by cristinanegrean Java Version: Current License: No License

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kandi X-RAY | spring-cloud-stream-kafka Summary

spring-cloud-stream-kafka is a Java library typically used in Messaging, Pub Sub, Kafka applications. spring-cloud-stream-kafka has no bugs, it has no vulnerabilities, it has build file available and it has low support. You can download it from GitHub.

Fancy Dress Worker Service: Event Driven Microservice with Spring Cloud Stream & Apache Kafka Broker

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Security

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Support

spring-cloud-stream-kafka has a low active ecosystem.

It has 24 star(s) with 23 fork(s). There are 5 watchers for this library.

It had no major release in the last 6 months.

spring-cloud-stream-kafka has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of spring-cloud-stream-kafka is current.

Quality

spring-cloud-stream-kafka has 0 bugs and 0 code smells.

Security

spring-cloud-stream-kafka has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

spring-cloud-stream-kafka code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

spring-cloud-stream-kafka does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

spring-cloud-stream-kafka releases are not available. You will need to build from source code and install.

Build file is available. You can build the component from source.

Installation instructions are not available. Examples and code snippets are available.

It has 1430 lines of code, 71 functions and 37 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed spring-cloud-stream-kafka and discovered the below as its top functions. This is intended to give you an instant insight into spring-cloud-stream-kafka implemented functionality, and help decide if they suit your requirements.

Receive message event
Deserializes a PackMessageEvent
Registers or update event
Get the event type
Receive a rating message event
Region > Save
Creates a rating object from a rating message
Calculates the average rating for a slip
Retrieve trending details
Finds all top trending views
Retrieves the transient UUID
Before the creation of the database
Start the application

Get all kandi verified functions for this library.

spring-cloud-stream-kafka Key Features

No Key Features are available at this moment for spring-cloud-stream-kafka.

spring-cloud-stream-kafka Examples and Code Snippets

No Code Snippets are available at this moment for spring-cloud-stream-kafka.

Community Discussions

Trending Discussions on spring-cloud-stream-kafka

Getting java.lang.ClassCastException: [B cannot be cast to org.springframework.messaging.Message exception after consuming batch

Example on handling processing exception in Spring Cloud Streams with Kafka Streams Binder and the functional style processor

producer.headerMode default value

Retry max 3 times when consuming batches in Spring Cloud Stream Kafka Binder

Spring cloud stream (Kafka) autoCreateTopics not working

Spring cloud stream kafka transaction configuration

spring-cloud-stream - Kafka producer prefix unique per node

Caused by: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class org.springframework.core.convert.support.Defa

Unable to set serde, producer and consumer properties per topic/binder level in spring cloud kafka

Kafka stream: PolicyViolationException: Topic replication factor must be 3

QUESTION

Getting java.lang.ClassCastException: [B cannot be cast to org.springframework.messaging.Message exception after consuming batch

Asked 2022-Apr-04 at 09:57

I am using spring-cloud-stream-kafka-binder-3.0.4 to consume the messages in batch, after consuming, converting the Message into object but getting the above exception.

Here is the code:

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ANSWER

Answered 2021-Oct-01 at 08:52

I managed to solve this Exception, by adding a Deserialiser.

So Below is my batch Listener, Instead of consuming List> messages as mentioned in the question, consuming List messages.

Source https://stackoverflow.com/questions/69219358

QUESTION

Example on handling processing exception in Spring Cloud Streams with Kafka Streams Binder and the functional style processor

Asked 2022-Feb-28 at 06:29

I am using Spring Cloud Streams with the Kafka Streams Binder, the functional style processor API and also multiple processors.

It's really cool to configure a processing application with multiple processors and multiple Kafka topics in this way and staying in the Spring Boot universe with /actuator, WebClient and so on. Actually I like it more than using plain Apache Kafka Streams.

BUT: I would like to integrate exception handling for exceptions occurring within the processors and sending these unprocessable messages to a DLQ. I have setup already DLQs for deserialization errors, but I found no good advice on achieving this besides sobychacko's answer on a similar question. But this is only a snippet! Does anybody have a more detailed example? I am asking this because the Spring Cloud Stream documentation on branching looks quite different.

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ANSWER

Answered 2021-Sep-29 at 18:30

Glad to hear about your usage of Spring Cloud Stream with Kafka Streams.

The reference docs you mentioned are from an older release. Please navigate to the newer docs from this page: https://spring.io/projects/spring-cloud-stream#learn

This question has come up before. See if these could help with your use case:

Error handling in Spring Cloud Kafka Streams

How to stop sending to kafka topic when control goes to catch block Functional kafka spring

Source https://stackoverflow.com/questions/69380821

QUESTION

producer.headerMode default value

Asked 2021-Nov-09 at 19:57

probably anyone know which value is default for spring.cloud.stream.bindings..producer.header-mode in spring-cloud-stream-kafka-binder?

The problem is because in spring-cloud stream documentation we have

Default: Depends on the binder implementation.

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ANSWER

Answered 2021-Nov-09 at 19:57

Default is headers for the Apache Kafka binder.

In general, you can assume that for middleware that supports headers natively (e.g. Kafka since 0.11.0.0), the default will be headers; for middleware that has no support for headers, it will be embeddedHeaders or none depending on what the developer chose.

Source https://stackoverflow.com/questions/69889266

QUESTION

Retry max 3 times when consuming batches in Spring Cloud Stream Kafka Binder

Asked 2021-Sep-14 at 18:57

I am consuming batches in kafka, where retry is not supported in spring cloud stream kafka binder with batch mode, there is an option given that You can configure a SeekToCurrentBatchErrorHandler (using a ListenerContainerCustomizer) to achieve similar functionality to retry in the binder.

I tried the same, but with SeekToCurrentBatchErrorHandler, but it's retrying more than the time set which is 3 times.

How can I do that? I would like to retry the whole batch.
How can I send the whole batch to dlq topic? like for record listener I used to match deliveryAttempt(retry) to 3 then send to DLQ topic, check in listener.

I have checked this link, which is exactly my issue but an example would be great help, with this library spring-cloud-stream-kafka-binder, can I achieve that. Please explain with an example, I am new to this.

Currently I have below code.

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ANSWER

Answered 2021-Sep-14 at 14:01

Use a RetryingBatchErrorHandler to send the whole batch to the DLT

https://docs.spring.io/spring-kafka/docs/current/reference/html/#retrying-batch-eh

Use a RecoveringBatchErrorHandler where you can throw a BatchListenerFailedException to tell it which record in the batch failed.

https://docs.spring.io/spring-kafka/docs/current/reference/html/#recovering-batch-eh

In both cases provide a DeadLetterPublishingRecoverer to the error handler; disable DLTs in the binder.

EDIT

Here's an example; it uses the newer functional style rather than the deprecated @StreamListener, but the same concepts apply (but you should consider moving to the functional style).

Source https://stackoverflow.com/questions/69175145

QUESTION

Spring cloud stream (Kafka) autoCreateTopics not working

Asked 2021-Jun-25 at 14:51

I am using Spring Cloud stream with Kafka binder. To disable the auto-create topics I referred to this- How can I configure a Spring Cloud Stream (Kafka) application to autocreate the topics in Confluent Cloud?. But, it seems that setting this property is not working and the framework creates the topics automatically.

Here is the configuration in application.properties

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ANSWER

Answered 2021-Jun-25 at 14:51

spring.cloud.stream.kafka.binder.auto-create-topics=false

That property configures the binder so that it will not create the topics; it does not set that consumer property.

To explicitly set that property, also set

Source https://stackoverflow.com/questions/68132711

QUESTION

Spring cloud stream kafka transaction configuration

Asked 2020-Nov-24 at 06:57

I am following this template for Spring-cloud-stream-kafka but got stuck while making the producer method transactional. I have not used kafka earlier so need help with this in case any configuration changes needed in kafka

It works well if no transactional configuration added but when transactional configurations are added it gets timed out at startup -

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ANSWER

Answered 2020-Nov-23 at 14:45

Look at the server log.

Transactional producers will time out if there are fewer replicas of the transaction state log than required. By default 3 replicas are required and a minimum of 2 need to be in sync.

See transaction.state.log.replication.factor and transaction.state.log.min.isr.

Source https://stackoverflow.com/questions/64940711

QUESTION

spring-cloud-stream - Kafka producer prefix unique per node

Asked 2020-Oct-22 at 17:03

I want to send something to Kafka topic in producer-only (not in read-write process) transaction using output-channel. I read documentation and another topic on StackOverflow (Spring cloud stream kafka transactions in producer side).

Problem is that i need to set unique transactionIdPrefix per node. Any suggestion how to do it?

...

ANSWER

Answered 2020-Oct-22 at 17:03

Here is one way...

Source https://stackoverflow.com/questions/64479036

QUESTION

Caused by: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class org.springframework.core.convert.support.Defa

Asked 2020-Apr-18 at 20:05

I am working on Spring Cloud Stream Apache Kafka example. I am developing code taking reference from : https://www.youtube.com/watch?v=YPDzcmqwCNo.

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ANSWER

Answered 2020-Apr-18 at 20:05

It looks like that application is a bit behind with the versions used for Spring Boot and Spring Cloud. The concepts explained in that tutorial are still perfectly valid though. I sent a PR to the original repository used for that spring-tips in which I updated the versions used. More importantly, the actual code is also upgraded to reflect the latest recommended functional model of writing components in Spring Cloud Stream. I hope that helps.

Source https://stackoverflow.com/questions/61289866

QUESTION

Unable to set serde, producer and consumer properties per topic/binder level in spring cloud kafka

Asked 2020-Feb-24 at 04:14

I'm trying to bring up simple pub-sub application using spring cloud kafka binder. However I'm unable to set Serializer, DeSerialzer property and other producer and consumer properties in application.yml. I consistently get serialization/deserialization error. Even kafka logs in spring boot project shows producer and consumer config still users ByteArraySerializer. Below is the code sameple.

pom.xml

...

ANSWER

Answered 2020-Feb-21 at 19:54

Serdes are used by the Kafka Streams binder.

With the MessageChannel binder, the properties are value.serializer and value.deserializer (and key...), and key/value.deserializer.

You also have to specify the fully qualified named of the classes.

Source https://stackoverflow.com/questions/60345285

QUESTION

Kafka stream: PolicyViolationException: Topic replication factor must be 3

Asked 2020-Feb-12 at 23:27

I'm currently building an application that writes to a kafka topic and listens to that very same topic to generate a ktable from it and materialize it into a store. The code i'm running is based on the following sample. I pretty much copied most of it (all except PageViewEventSource) and refactored the names to my use case. I also updated my application.properties with the keys used in the sample.

When running the application i get the following errors:

...

ANSWER

Answered 2020-Feb-12 at 18:47

Your broker setup requires a minimum replication factor of 3.

You can set the ... topic.replication-factor property for the binding.

See Consumer Properties in the binder documentation.

Source https://stackoverflow.com/questions/60194656

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install spring-cloud-stream-kafka

You can download it from GitHub.
You can use spring-cloud-stream-kafka like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the spring-cloud-stream-kafka component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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