kafka-streams-example | Kafka Streams based microservice | Microservice library

by abhirockzz Java Version: Current License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(7)Vulnerabilities Install Support

kandi X-RAY | kafka-streams-example Summary

kafka-streams-example is a Java library typically used in Architecture, Microservice, Spring Boot, Kafka applications. kafka-streams-example has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. However kafka-streams-example build file is not available. You can download it from GitHub.

This is an example of a Kafka Streams based microservice (packaged in form of an Uber JAR). The scenario is simple.

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Security

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Support

kafka-streams-example has a low active ecosystem.

It has 22 star(s) with 17 fork(s). There are 3 watchers for this library.

It had no major release in the last 6 months.

kafka-streams-example has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of kafka-streams-example is current.

Quality

kafka-streams-example has 0 bugs and 0 code smells.

Security

kafka-streams-example has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

kafka-streams-example code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

kafka-streams-example is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

kafka-streams-example releases are not available. You will need to build from source code and install.

kafka-streams-example has no build file. You will be need to create the build yourself to build the component from source.

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

It has 670 lines of code, 41 functions and 12 files.

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

Top functions reviewed by kandi - BETA

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

Main entry point
Creates a topology builder
Bootstraps the Kafka stream
Starts the pipeline
Gets the metrics for a given machine
Add another Metrics
Fetch metrics via REST service
Get local metrics from local state store
Gets the local metrics for a remote machine
Generates the producer
Produce messages
Gets the remote metrics
Starts the producer
Fetch all metrics from local store

Get all kandi verified functions for this library.

kafka-streams-example Key Features

No Key Features are available at this moment for kafka-streams-example.

kafka-streams-example Examples and Code Snippets

No Code Snippets are available at this moment for kafka-streams-example.

Community Discussions

Trending Discussions on kafka-streams-example

kafka issue while connecting to zookeeper (kubernetes-kafka:1.0-10.2.1)

kafka connect to Google BigQuery throws error java.lang.NoClassDefFoundError: org/apache/kafka/common/config/ConfigDef$CaseInsensitiveValidString

Kafka stream: Monthly time windows

kafka.zookeeper.ZooKeeperClientTimeoutException: Timed out waiting for connection while in state: CONNECTING

kafka-streams: retry complete message join if single element is missing

Cannot run Kafka on mac

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

QUESTION

kafka issue while connecting to zookeeper (kubernetes-kafka:1.0-10.2.1)

Asked 2021-Oct-19 at 09:03

I have used this document for creating kafka https://kow3ns.github.io/kubernetes-kafka/manifests/

able to create zookeeper, facing issue with the creation of kafka.getting error to connect with the zookeeper.

this is the manifest i have used for creating for kafka:

https://kow3ns.github.io/kubernetes-kafka/manifests/kafka.yaml for Zookeeper

https://github.com/kow3ns/kubernetes-zookeeper/blob/master/manifests/zookeeper.yaml

The logs of the kafka

...

ANSWER

Answered 2021-Oct-19 at 09:03

Your Kafka and Zookeeper deployments are running in the kaf namespace according to your screenshots, presumably you have set this up manually and applied the configurations while in that namespace? Neither the Kafka or Zookeeper YAML files explicitly state a namespace in metadata, so will be deployed to the active namespace when created.

Anyway, the Kafka deployment YAML you have is hardcoded to assume Zookeeper is setup in the default namespace, with the following line:

Source https://stackoverflow.com/questions/69625797

QUESTION

kafka connect to Google BigQuery throws error java.lang.NoClassDefFoundError: org/apache/kafka/common/config/ConfigDef$CaseInsensitiveValidString

Asked 2021-Mar-14 at 19:40

I am trying to stream from a Kafka topic to Google BigQuery. My connect-standalone.properties file is as follows:

...

ANSWER

Answered 2021-Mar-14 at 19:40

Thanks all.

I was using an older Kafka version.

I upgraded Kafka in the cluster from kafka_2.12-1.1.0 to the latest stable version kafka_2.12-2.7.0. I also upgraded zookeeper from zookeeper-3.4.6 to apache-zookeeper-3.6.2-bin version.

In addition in the run file I added the following:

Source https://stackoverflow.com/questions/66617141

QUESTION

Kafka stream: Monthly time windows

Asked 2020-Dec-09 at 09:37

Based on this example (https://github.com/confluentinc/kafka-streams-examples/blob/5.5.0-post/src/test/java/io/confluent/examples/streams/window/DailyTimeWindows.java), I would like to create a Monthly time windows. The problem is the size method which I don't know the size since every month have a different size.

For more context, I want to count each unique user who made a transaction over a month based on userId.

Actual implementation for windowsFor method:

...

ANSWER

Answered 2020-Dec-08 at 18:25

The problem is the size method which I don't know the size since every month have a different size.

You can convert months to days and then add it. You will also need to take care of checking leap year.

Source https://stackoverflow.com/questions/65202905

QUESTION

kafka.zookeeper.ZooKeeperClientTimeoutException: Timed out waiting for connection while in state: CONNECTING

Asked 2020-Sep-25 at 10:41

I am trying to install kafka in ubuntu. I have downloaded the kafka tar.gz file,unzipped it. started the zookeeper server .While trying to start the kafka server, getting the timeout exception.

Can some one pls let me know the resolution.

Following are the server logs: ...

ANSWER

Answered 2020-Sep-25 at 10:41

Many Zookeeper instances were running earlier. I killed all the zookeeper and Brokers , restarted them again freshly . It is working fine now.

Source https://stackoverflow.com/questions/63933799

QUESTION

kafka-streams: retry complete message join if single element is missing

Asked 2020-Jul-23 at 09:45

I'm performing a message enrichement through a KStream-KTable left join using the kafka-streams DSL. Everything worked smoothly except for a subtle problem.

In the current architecture we receive in a topic (placements, the KStream) some messages that needs to be enriched with the data from a compacted topic (descriptions, the KTable). The messages are something like:

...

ANSWER

Answered 2020-Jul-23 at 09:45

After careful analysis of the custom join example, the solution is to slightly change its logic.

Below an excerpt from the example:

Source https://stackoverflow.com/questions/63031120

QUESTION

Cannot run Kafka on mac

Asked 2020-Feb-25 at 11:37

I am very new to using Microservices and having trouble running Kafka after I have started zookeeper.

Zookeeper starts fine but when I try to start my Kafka server it throws an error.

I have searched on google to try and solve my problem but its quite overwhelming, as I am not sure what all these different config files mean/do.

I have tried by enabling listeners=PLAINTEXT://:9092 in server settings but it doesn't work.

I have also tried to un and reinstalled Kafka and ZooKeeper but I still get the same error.

...

ANSWER

Answered 2020-Feb-25 at 11:37

The cause of the problem is shown in this message:

kafka.common.InconsistentClusterIdException:

The Cluster ID S4SZ31nVRTCQ4uwRJ9_7mg

doesn't match stored clusterId Some(Y_mQi4q4TSuhlWdx4DHiaQ)

in meta.properties.

The broker is trying to join the wrong cluster.
Configured zookeeper.connect may be wrong.

The above problem occurs when a new instance of Kafka is being started up on data storage created by another kafka server. Kafka stores its messages in 'log' files.

How to fix the problem?

The problem can be fixed in these steps:

Shutdown both Kafka and Zookeeper
If required, take backup of the existing logs of Kafka and Zookeeper
Delete the log directories of both Kafka and Zookeeper
Restart Zookeeper and Kafka

Source https://stackoverflow.com/questions/60391921

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

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

Vulnerabilities

No vulnerabilities reported

Install kafka-streams-example

This project has two modules.
Producer application
Consumer application (uses Kafka Streams)

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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