kandi X-RAY | streams-examples Summary
kandi X-RAY | streams-examples Summary
Mirror of Apache Streams (Incubating) Examples
Top functions reviewed by kandi - BETA
- Runs the engine
- Runs the driver
- Runs a stream
- Starts the stream
- Entry point to the Elasticsearch cluster
- Main method to start Hadoop elasticsearch engine
- Start the Elasticsearch reindex
- Main method
- Main method for testing
- Entry point for testing
streams-examples Key Features
streams-examples Examples and Code Snippets
Trending Discussions on streams-examples
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:
The logs of the kafka...
ANSWERAnswered 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:
I am trying to stream from a Kafka topic to Google BigQuery. My connect-standalone.properties file is as follows:...
ANSWERAnswered 2021-Mar-14 at 19:40
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:
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:...
ANSWERAnswered 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.
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: ...
ANSWERAnswered 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.
I'm performing a message enrichement through a
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:
ANSWERAnswered 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:
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....
ANSWERAnswered 2020-Feb-25 at 11:37
The cause of the problem is shown in this message:
The Cluster ID S4SZ31nVRTCQ4uwRJ9_7mg
doesn't match stored clusterId Some(Y_mQi4q4TSuhlWdx4DHiaQ)
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
No vulnerabilities reported
You can use streams-examples 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 streams-examples 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 .
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