Trending questions in Apache Kafka

+1 vote
14 answers

How can I delete all the messages from a Kafka topic?

To delete all the messages from a Kafka topic.  There are many approach ...READ MORE

Jun 19, 2020 in Apache Kafka by PAWAN
 • 380 points • 229,410 views
+1 vote
2 answers

How to check Kafka version?

Hi@akhtar, Actually, in kafka there is no command ...READ MORE

Feb 10, 2020 in Apache Kafka by MD
 • 95,460 points • 47,730 views
0 votes
1 answer

How to list all Kafka topics?

Hi@akhtar, Kafka uses ZooKeeper, so you need to ...READ MORE

Dec 7, 2020 in Apache Kafka by MD
 • 95,460 points • 11,969 views
0 votes
0 answers

zookeeper service is not started properly

Getting below warning in zookeeper log 2021-02-19 14:20:27,911 ...READ MORE

Feb 19, 2021 in Apache Kafka by anonymous
 • 120 points • 1,684 views
+1 vote
1 answer

What is the importance of Kafka bootstrap.servers?

Hi@akhtar, Bootstrap.servers is a mandatory field in Kafka ...READ MORE

Feb 11, 2020 in Apache Kafka by MD
 • 95,460 points • 17,698 views
+2 votes
9 answers

Writing the Kafka consumer output to a file

System.out.println(String.valueOf(output.offset()) + ": " + new String(bytes, ...READ MORE

Dec 7, 2018 in Apache Kafka by Harsh
 • 38,556 views
0 votes
1 answer

How to know leader information in kafka?

Hi@akhtar, To know leader information you can use ...READ MORE

Feb 10, 2020 in Apache Kafka by MD
 • 95,460 points • 16,500 views
0 votes
1 answer

How to change the data directory in Zookeeper?

Hi@akhtar, You can change the default directory in ...READ MORE

Dec 8, 2020 in Apache Kafka by MD
 • 95,460 points • 3,107 views
0 votes
1 answer

How to start Zookeeper service?

Hi@akhtar, Before you start the Zookeeper service, you need ...READ MORE

Dec 7, 2020 in Apache Kafka by MD
 • 95,460 points • 2,547 views
+1 vote
1 answer

Getting Fatal error during KafkaServerStartable startup. Prepare to shutdown (kafka.server.KafkaServerStartable) java.lang.NumberFormatException: For input string: "delete"

Hi@B, There may be a problem with your ...READ MORE

Nov 6, 2020 in Apache Kafka by MD
 • 95,460 points • 3,535 views
+1 vote
3 answers

What is the need of zookeeper in kafka? Can I use kafka without zookeeper?

I just would like to complete the ...READ MORE

Dec 4, 2020 in Apache Kafka by Tamás
 • 140 points • 8,744 views
0 votes
1 answer

How to stop zookeeper service?

Hi@akhtar, You can find one script in the ...READ MORE

Dec 7, 2020 in Apache Kafka by MD
 • 95,460 points • 1,772 views
0 votes
1 answer

What is a broker in Kafka Cluster?

Hi@akhtar, A Kafka broker receives messages from producers and stores ...READ MORE

Dec 7, 2020 in Apache Kafka by MD
 • 95,460 points • 1,612 views
0 votes
1 answer

How to create a Kafka topic in a broker?

Hi@akhtar, To create a Kafka topic, you need ...READ MORE

Dec 7, 2020 in Apache Kafka by MD
 • 95,460 points • 1,609 views
+1 vote
1 answer

Fatal error during KafkaServer startup. Prepare to shutdown org.I0Itec.zkclient.exception.ZkTimeoutException: Unable to connect to zookeeper server within timeout: 6000

HI@akhtar, You get this error because before stating ...READ MORE

Feb 5, 2020 in Apache Kafka by MD
 • 95,460 points • 14,672 views
0 votes
1 answer

How to start Kafka server?

Hi@akhtar, You need the start your zookeeper service ...READ MORE

Dec 7, 2020 in Apache Kafka by MD
 • 95,460 points • 1,104 views
0 votes
1 answer

How to configure zookeeper for Kafka?

Hi@akhtar, It is a must to set up ...READ MORE

Dec 7, 2020 in Apache Kafka by MD
 • 95,460 points • 1,073 views
0 votes
1 answer

How to create a Kafka producer?

Hi@MD, Generally, Kafka producer comes from an API. ...READ MORE

Dec 7, 2020 in Apache Kafka by akhtar
 • 38,260 points • 800 views
0 votes
1 answer

How to start a consumer in Kafka cluster?

Hi@akhtar, In Kafka, each topic is divided into a ...READ MORE

Dec 7, 2020 in Apache Kafka by MD
 • 95,460 points • 774 views
0 votes
1 answer

What is a producer in Kafka Cluster?

Hi@akhtar, The Kafka producer is conceptually much simpler than the ...READ MORE

Dec 7, 2020 in Apache Kafka by MD
 • 95,460 points • 745 views
+1 vote
1 answer

ERROR Unexpected exception, exiting abnormally (org.apache.zookeeper.server.ZooKeeperServerMain) java.net.BindException: Address already in use

Hi@akhtar, Here the zookeeper service is already started ...READ MORE

Feb 5, 2020 in Apache Kafka by MD
 • 95,460 points • 12,318 views
0 votes
1 answer

How to consume the consumed message from the kafka topic based on offset ? please provide example in confluent_kafka python

Hi@Amit, You can pass --offset keyword in your ...READ MORE

Aug 10, 2020 in Apache Kafka by MD
 • 95,460 points • 3,910 views
0 votes
1 answer

ERROR tool.BaseSqoopTool: Error parsing arguments for import:ERROR tool.BaseSqoopTool: Unrecognized argument: -topic

Hi@oguzhan, I have checked the Sqoop document, but ...READ MORE

Sep 7, 2020 in Apache Kafka by MD
 • 95,460 points • 1,150 views
+1 vote
1 answer

Kafka consumer not able to start reading messages from the last uncommitted offsets

Hi@prasant, I am not sure it will work ...READ MORE

Feb 18, 2020 in Apache Kafka by MD
 • 95,460 points • 9,685 views
0 votes
2 answers

Is there any Web UI for kafka?

Yes. There is one Tool Name Called ...READ MORE

Mar 14, 2020 in Apache Kafka by Sagar
 • 4,477 views
0 votes
1 answer

Caused by: org.apache.kafka.connect.errors.DataException: Converting byte[] to Kafka Connect data failed due to serialization error:

Hi@akhtar, To fix the pipeline, you need to resolve ...READ MORE

Apr 3, 2020 in Apache Kafka by MD
 • 95,460 points • 5,303 views
0 votes
1 answer

How can I connect aws lambda and kafka ?

Hi@Rishabh, I think to implement this task you ...READ MORE

May 4, 2020 in Apache Kafka by MD
 • 95,460 points • 3,682 views
0 votes
1 answer

org.apache.kafka.common.config.ConfigException: Missing required configuration "bootstrap.servers" which has no default value.

Hi@akhtar, In your file bootstrap.servers field in missing. ...READ MORE

Feb 10, 2020 in Apache Kafka by MD
 • 95,460 points • 7,259 views
0 votes
1 answer

How to check pending messages in KAFKA topic?

kafka-run-class.bat kafka.tools.ConsumerOffsetChecker --broker-info --group test-consumer-group --topic test ...READ MORE

May 29, 2020 in Apache Kafka by chandra
 • 11,042 views
0 votes
1 answer

Kafka SASL/SCRAM

Hi@progDuck, By default it is connecting to localhost:2181, ...READ MORE

Jun 5, 2020 in Apache Kafka by MD
 • 95,460 points • 2,066 views
0 votes
2 answers

How to installed confluent kafka in our system?

Easy Approach is work with Docker. ConfluentInc ...READ MORE

Jun 18, 2020 in Apache Kafka by PAWAN
 • 380 points • 3,087 views
0 votes
0 answers

Kafka SASL/SCRAM

Already that day in a row I ...READ MORE

Jun 4, 2020 in Apache Kafka by progDuck
 • 140 points • 2,063 views
0 votes
1 answer

How to read batch messages in confluent-kafka-python?

Hi@akhtar, You have to read the messages normally ...READ MORE

Apr 3, 2020 in Apache Kafka by MD
 • 95,460 points • 4,508 views
0 votes
1 answer

error during KafkaServerStartable startup. Prepare to shutdown (kafka.server.KafkaServerStartable)

Hi@akhtar, This error occurs because zookeeper is running already. So ...READ MORE

Mar 31, 2020 in Apache Kafka by MD
 • 95,460 points • 4,423 views
0 votes
2 answers

How can I create multiple consumers in apache kafka?

First of all, Consumer is not thread ...READ MORE

Jun 18, 2020 in Apache Kafka by PAWAN
 • 380 points • 3,574 views
0 votes
1 answer

Error: pass --path /path/to/confluent flag or set environment variable CONFLUENT_HOME

Hi@akhtar, Before starting confluent kafka in your system, ...READ MORE

Apr 3, 2020 in Apache Kafka by MD
 • 95,460 points • 3,885 views
0 votes
2 answers

Kafka Consumer is not throwing errors even though if i provide wrong broker details in Java Standalone

Please delete all log files. Reason behind, ...READ MORE

Jun 18, 2020 in Apache Kafka by PAWAN
 • 380 points • 749 views
0 votes
1 answer

how can we delete the topic in kafka in kafkatool application ?

Hi@sreeveena, I am not sure but there may be ...READ MORE

May 13, 2020 in Apache Kafka by MD
 • 95,460 points • 1,684 views
+1 vote
0 answers

how to delete the topic in kafka

How to stop Kafka server from crashing ...READ MORE

May 13, 2020 in Apache Kafka by sreeveena
 • 150 points • 1,417 views
0 votes
1 answer

How to install sbt in Redhat/CentOs??

Hi@akhtar, To install sbt in your RedHat system ...READ MORE

Feb 10, 2020 in Apache Kafka by MD
 • 95,460 points • 5,426 views
0 votes
2 answers

Not able to start Kafka service

If your service, in this case kafka, ...READ MORE

May 10, 2019 in Apache Kafka by Novice
 • 18,931 views
0 votes
1 answer

Error: kafka/Kafka : Unsupported major.minor version 52.0

Hi@akhtar, As the above error shows that the ...READ MORE

Mar 31, 2020 in Apache Kafka by MD
 • 95,460 points • 2,904 views
0 votes
1 answer

What is the meaning of retries in Kafka Producer API?

Hi@akhtar, It defines how many time the producer ...READ MORE

Feb 11, 2020 in Apache Kafka by MD
 • 95,460 points • 4,407 views
0 votes
1 answer

[Mac] Writing the Kafka consumer output to a CSV file

Hi@ I don't know it will work or ...READ MORE

Feb 18, 2020 in Apache Kafka by MD
 • 95,460 points • 4,098 views
0 votes
1 answer

How to write output from Kafka to S3 using a Confluent S3 connector?

Hi@akhtar, To do this task you have to ...READ MORE

Apr 3, 2020 in Apache Kafka by MD
 • 95,460 points • 1,837 views
0 votes
1 answer

How can i connect to an api which gives me weather data to Apache kafka?

Hi, To connect an API in kafka, you ...READ MORE

Apr 13, 2020 in Apache Kafka by MD
 • 95,460 points • 1,338 views
0 votes
1 answer

Missing required argument "[zookeeper]"

Hi@akhtar, I guess you are using the old ...READ MORE

Feb 10, 2020 in Apache Kafka by MD
 • 95,460 points • 3,223 views
0 votes
1 answer

How to implement parallel read in a single application?

Hi@akhtar, To read parallel we have to create ...READ MORE

Feb 11, 2020 in Apache Kafka by MD
 • 95,460 points • 1,739 views
0 votes
1 answer

How to create Kafka consumer API?

Hi@akhtar, If you know the kafka producer API ...READ MORE

Feb 11, 2020 in Apache Kafka by MD
 • 95,460 points • 1,532 views
0 votes
1 answer

What is the use of acts configuration in Kafka Producer API?

Hi@akhtar, The acts configuration is used to configure ...READ MORE

Feb 11, 2020 in Apache Kafka by MD
 • 95,460 points • 1,466 views
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