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 • 236,409 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 • 49,576 views
0 votes
0 answers

Commit cannot be completed since the group has already rebalanced and assigned the partitions to another member.

Hello We designed a notification application which ...READ MORE

Feb 10, 2023 in Apache Kafka by noushin
edited Mar 4 • 325 views
0 votes
0 answers

Consumer is not consuming messages, but service is running, please help me on this

Consumer is suddenly stopped consuming messages but ...READ MORE

Jul 6, 2022 in Apache Kafka by KsP
edited Mar 4 • 249 views
0 votes
0 answers

testing prod

testing prod READ MORE

Jan 21, 2022 in Apache Kafka by anonymous
 • 140 points
edited Mar 4 • 289 views
0 votes
0 answers

Do we have Playbook to confirm preferred leader doesn't mismatch in Kafka after server is rebooted?

I'm working on creating playbook for kafka ...READ MORE

Sep 20, 2021 in Apache Kafka by Sachin
edited Mar 4 • 304 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 • 12,458 views
0 votes
0 answers

saving data from kafkaa consumer into hdfs using pydoop

i have used stock data and send ...READ MORE

Aug 9, 2021 in Apache Kafka by Rikesh
edited Mar 4 • 269 views
0 votes
0 answers

trying to join two streams using inner join and storing the resultant data into a topic, but one of the column is missing in topic schema.

Source Streams: CREATE STREAM one ( ADC_ID ...READ MORE

May 1, 2021 in Apache Kafka by anonymous
edited Mar 4 • 251 views
+2 votes
8 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
 • 40,567 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 • 18,481 views
0 votes
0 answers

Consumer not able to elect group coordinator

I have created two brokers having id ...READ MORE

Apr 3, 2021 in Apache Kafka by Edureka
edited Mar 4 • 183 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 • 1,961 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 • 17,915 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 • 3,575 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 • 4,423 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 • 9,622 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 • 2,985 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 • 2,312 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 • 2,013 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 • 15,186 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 • 1,960 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 • 1,493 views
0 votes
0 answers

Kafka to HDFS using kafka-conncet

Hi, Can you please share steps to write ...READ MORE

Jan 7, 2021 in Apache Kafka by Narayana
edited Mar 4 • 174 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 • 1,452 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 • 1,122 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 • 1,099 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 • 1,099 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 • 13,124 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 • 4,456 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 • 1,476 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 • 10,126 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
 • 5,228 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 • 6,039 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
 • 11,851 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 • 8,023 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 • 4,315 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 • 3,659 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 • 2,506 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 • 2,447 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 • 5,022 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 • 5,061 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 • 4,164 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 • 4,485 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
 • 20,239 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 • 2,129 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 • 1,141 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 • 6,066 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 • 1,852 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 • 3,455 views
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