docker-kafka | Docker image containing a standard Kafka distribution | Pub Sub library
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kandi X-RAY | docker-kafka Summary
Docker image containing a standard Kafka distribution.
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QUESTION
I am trying to send data from Kafka to Elasticsearch. I checked that my Kafka Broker is working because I can see the messages I produce to a topic is read by a Kafka Consumer. However, when I try to connect Kafka to Elasticsearch I get the following error.
Command:
...ANSWER
Answered 2021-May-29 at 13:09The Connect container starts Connect Distributed Server already. You should use HTTP and JSON properties to configure the Elastic connector rather than exec into the container shell and issue connect-standalone
commands which default to using a broker running in the container itself.
Similarly, the Elastic quickstart file expects Elasticsearch running within the Connect container, by default
QUESTION
I'm trying to setup Kafka and zookeeper for development and I'm following this tutorial:
...ANSWER
Answered 2021-Apr-27 at 21:20i think zookeeper cannot find kafka and kafka cannot find zookeeper becouse localHost name conflict if use Ubuntu OS used this way? if Ubuntu i think you need change setup hosts from /etc/hosts
look this link http://manpages.ubuntu.com/manpages/bionic/man5/hosts.5.html
and this is soultion
QUESTION
I have this consumer code written on the host machine
...ANSWER
Answered 2021-Mar-17 at 15:33Your shell scripts work while you're in the container, but that's not going to help you test code running outside of Docker
You seem to have the internal and external listeners flipped
From the host, you want to connect on the internal listener, so you need to expose port 9093 and connect on localhost:9093, not use the Kafka container service name
QUESTION
Spring Boot (version 2.2) application with Spring Kafka (version 2.4) can't establish a connection with Bitnami Docker Kafka (version 2) executed from the official docker-compose.yml
ANSWER
Answered 2020-Jan-24 at 15:20To establish connection with Bitnami Docker Kafka running on `localhost, add the following environment variables:
KAFKA_CFG_LISTENERS=PLAINTEXT://:9092
KAFKA_CFG_ADVERTISED_LISTENERS=PLAINTEXT://localhost:9092
docker-compose.yml
kafka service:
QUESTION
I´m trying to run Kafka and Zookepper using Docker, following the steps defined here: https://github.com/spotify/docker-kafka
But after running, just as described, the docker container
...ANSWER
Answered 2018-Jan-06 at 23:27Kafka doesn't run HTTP server. Port 9092 over wget doesn't do anything
You need to describe the topics using the kafka-topics
command, which can be found in the documentation, which will connect to Zookeeper over the port 2181.
Something like
QUESTION
I am using wurstmeister's docker-kafka project to run kafka/zookeeper in a container. I docker-compose up the containers using localhost as the KAFKA_ADVERTISED_HOST_NAME: localhost
variable.
I have written a Java app that uses flink to connect and consume one of the topics of this Kafka container. If I export a runnable jar and run it from my machine, it works absolutely fine. When I create the following image to run the jar from another docker container I receive an exception (about 30 seconds after execution) Exception in thread "main" org.apache.flink.runtime.client.JobExecutionException: org.apache.kafka.common.errors.TimeoutException: Timeout expired while fetching topic metadata
which I believe has to do with my Java program not being able to communicate with the Kafka server running in the other container.
Here's my Java app's dockerfile:
...ANSWER
Answered 2019-Jun-13 at 08:13KAFKA_ADVERTISED_HOST_NAME: localhost
is what your client will receive as connection string to Kafka. It means that container with your app will try to reach Kafka at localhost where localhost is local network stack for container with your app.
To solve that problem you should use kafka
host as your KAFKA_ADVERTISED_HOST_NAME and bootstrap servers - that will allow your container to connect to kafka inside dockers but will break configuration when you try to connect to Kafka by running on your PC java -jar...
To fix that problem make entry in your hosts file on your PC with mapping kafka -> localhost.
QUESTION
How to use confluent/cp-kafka image in docker compose with exposing on localhost and my network container name kafka?
Do not link this as duplicate of:
- Connect to docker kafka container from localhost and another docker container
- Cannot produce message to kafka from service running in docker
These do not solve my issue because the methods they use are depreciated by confluent/cp-kafka and I want to connect on localhost and on the docker network.
In the configure script on confluent/cp-kafka they do this annoying task:
...ANSWER
Answered 2019-Jan-09 at 20:39Maybe I'm just clashing into some opinionated docker image and should look for a different image...
The image is fine. You might want to read this explanation of the listeners.
tl;dr - you don't want to (and shouldn't?) use the same listener "protocol" in different networks.
Use the advertised.listeners
, no need to edit the listeners
QUESTION
I am new at Docker and also Apache Kafka. What I am trying to do is creating a consumer and producer class in java. I set up spotify/kafka which is a kafka container for Docker. But something went wrong.
I could not find any producer consumer example (If you have one please share) for a docker kafka container, so I just tried to do like it is a normal kafka(I mean not as a docker container, I guess there is no difference for usages). I tried this code here(And I also tryed to reach this guy to ask but could not achieve so I am asking for help here): But when I write something to the producer terminal, nothing appeares in producer terminal. My OS is Ubuntu Xenial 16.04. Here is what I did:
I started docker kafka container by typing this:
...ANSWER
Answered 2018-Feb-26 at 11:20After a long search, I found the problem. When I run the ches/kafka which is the docker kafka container that I use, I did not specified a port number.
QUESTION
I'm trying to run kafka docker image inside my VirtualBox. I firstly run zookeeper server by:
...ANSWER
Answered 2018-Feb-14 at 07:08I have figured out that VM did not have enough memory to allocate for kafka server. I got it from the last 3 bottom lines of the second picture above. And the solution is quite easy, I just need to assign bigger memory to VM in vagrantfile, previously it was 1024. And now:
QUESTION
I'm currently trying to test the kafka retention log using a new environment with docker-kafka.
I used config/server.properties
and set the following for log retention:
ANSWER
Answered 2017-Aug-09 at 00:07A global config log.retention.{hours|minutes|ms} controls the default behavior for all topics. The topic-level config
retention.ms` is for individual topics.
In your case, the log did not get deleted before you set the topic-level config since the default parameter value is 7 days.
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