Trending questions in Apache Kafka

+1 vote
12 answers

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

As of kafka 2.3.0 version, there is ...READ MORE

Sep 8, 2019 in Apache Kafka by Brajkishore
 • 240 points • 71,621 views
0 votes
1 answer

How to check Kafka version?

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

Feb 10 in Apache Kafka by MD
 • 7,150 points • 1,433 views
0 votes
1 answer

Is there any Web UI for kafka?

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

Mar 14 in Apache Kafka by Sagar
 • 46 views
0 votes
1 answer

What is the importance of Kafka bootstrap.servers?

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

Feb 11 in Apache Kafka by MD
 • 7,150 points • 390 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 in Apache Kafka by MD
 • 7,150 points • 152 views
0 votes
1 answer

I tried to do configration for retation log in kafkA ,BUT kafka broker shuts Down.Is there any solution for that??

Hi@Parth, There are mainly two types of retention ...READ MORE

Feb 18 in Apache Kafka by MD
 • 7,150 points • 71 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 in Apache Kafka by MD
 • 7,150 points • 247 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 in Apache Kafka by MD
 • 7,150 points • 178 views
0 votes
1 answer

What is the need of serializer in Kafka Producer API?

Hi@akhtar, If we try to use String key ...READ MORE

Feb 11 in Apache Kafka by MD
 • 7,150 points • 87 views
0 votes
1 answer

Missing required argument "[zookeeper]"

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

Feb 10 in Apache Kafka by MD
 • 7,150 points • 110 views
0 votes
1 answer

How to create Kafka consumer API?

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

Feb 11 in Apache Kafka by MD
 • 7,150 points • 57 views
0 votes
1 answer

How consumers enter/exit in groups?

Hi@akhtar, Whenever one new consumer comes or leaves ...READ MORE

Feb 11 in Apache Kafka by MD
 • 7,150 points • 56 views
0 votes
1 answer

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

Hi@akhtar, You can not use kafka without zookeeper. ...READ MORE

Feb 6 in Apache Kafka by MD
 • 7,150 points • 269 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 in Apache Kafka by MD
 • 7,150 points • 44 views
0 votes
1 answer

How to create kafka producer API?

Hi@akhtar, To create kafka producer API, you can ...READ MORE

Feb 11 in Apache Kafka by MD
 • 7,150 points • 41 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 in Apache Kafka by MD
 • 7,150 points • 38 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 in Apache Kafka by MD
 • 7,150 points • 35 views
0 votes
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 in Apache Kafka by MD
 • 7,150 points • 261 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 in Apache Kafka by MD
 • 7,150 points • 44 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 in Apache Kafka by MD
 • 7,150 points • 44 views
0 votes
1 answer

[error] /root/kafka-sbt/file.java:5:1: class SimpleProducer is public, should be declared in a file named SimpleProducer.java

Hi@akhtar, This error is not related to sbt. ...READ MORE

Feb 10 in Apache Kafka by MD
 • 7,150 points • 35 views
0 votes
1 answer

How can I create multiple consumers in apache kafka?

Hi@akhtar, If you already created multiple producers then ...READ MORE

Feb 6 in Apache Kafka by MD
 • 7,150 points • 70 views
0 votes
1 answer

How can I create a topic in apache kafka?

Hi@akhtar, To create kafka topic you can use ...READ MORE

Feb 6 in Apache Kafka by MD
 • 7,150 points • 49 views
0 votes
1 answer

What are the differences between Apache Kafka and RabbitMQ?

Hi@akhtar, Apache kafka and RabitMQ have their own ...READ MORE

Feb 6 in Apache Kafka by MD
 • 7,150 points • 30 views
0 votes
0 answers

What is the difference between point to point and publish-subscribe messaging system?

Hi, I am new in Kafka. Can anyone ...READ MORE

Feb 6 in Apache Kafka by akhtar
 • 3,600 points • 19 views
0 votes
1 answer

What filter transformation in apache spark?

Hi, Filter() transformation in Apache Spark takes function ...READ MORE

Aug 2, 2019 in Apache Kafka by Gitika
 • 26,110 points • 92 views
+3 votes
1 answer

How to install Kafka on Windows System?

These are the steps to install Kafka ...READ MORE

Feb 25, 2019 in Apache Kafka by Ramya
 • 5,737 views
+1 vote
0 answers

The KSQL query PRINT 'Topic' doesn't return a result

when I use the consumer it return ...READ MORE

Jul 1, 2019 in Apache Kafka by salma
 • 128 views
+1 vote
10 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
 • 11,100 views
+1 vote
0 answers

Want to delete consumed topic programatically

directly delete kafka log folder and zeekeeper ...READ MORE

Jun 4, 2019 in Apache Kafka by sarvesh
 • 219 views
+1 vote
2 answers

Getting error in schema-registry start command

It is working for me with below ...READ MORE

Sep 30, 2019 in Apache Kafka by Brajkishore
 • 240 points • 708 views
0 votes
2 answers

Not able to start Kafka service

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

May 9, 2019 in Apache Kafka by Novice
 • 2,763 views
0 votes
0 answers

How to check pending messages in KAFKA topic?

Let say we have first_topic which has kafka_server_brokertopicmetrics_messagesin_total{instance="localhost:1120",job="kafka",topic="first_topic"}  ...READ MORE

May 2, 2019 in Apache Kafka by anonymous
 • 1,486 views
0 votes
1 answer

How to write Kafka connector to integrate with Facebook API?

If you know the limit of API ...READ MORE

Apr 29, 2019 in Apache Kafka by Kumar
 • 524 views
0 votes
1 answer

Explain to me the functionality of Kafka in a Big-Data Cluster

Let me explain to you about Apache ...READ MORE

Apr 30, 2019 in Apache Kafka by ravikiran
 • 4,600 points • 196 views
0 votes
2 answers

Kafka service not starting. Shows no output

sudo systemctl status kafka This should at least ...READ MORE

May 9, 2019 in Apache Kafka by Novice
 • 1,257 views
0 votes
1 answer

Not able to download Kafka using curl

The output to download this is in ...READ MORE

Feb 21, 2019 in Apache Kafka by Omkar
 • 69,000 points • 551 views
0 votes
1 answer

error message while running

Ideally, installing the urllib3 module should solve this error. ...READ MORE

Feb 25, 2019 in Apache Kafka by Omkar
 • 69,000 points • 62 views
0 votes
1 answer

Installing Kafka on Ubuntu

I am not sure what you expect ...READ MORE

Feb 21, 2019 in Apache Kafka by Arun
 • 185 views
0 votes
1 answer

Create a Hive table with a sequence file

Hey! Follow these steps to create a ...READ MORE

Dec 26, 2018 in Apache Kafka by Omkar
 • 69,000 points • 127 views
0 votes
1 answer

How to reset the offset of messages consumed from Kafka?

The reset option only prints the result ...READ MORE

Jul 9, 2018 in Apache Kafka by Shubham
 • 13,380 points • 4,520 views
0 votes
1 answer

Retention in Kafka Cluster

However, retention period retains all the published ...READ MORE

Sep 18, 2018 in Apache Kafka by kurt_cobain
 • 9,310 points • 251 views
0 votes
1 answer

Kafka Elements

The most important elements of Kafka: Topic – ...READ MORE

Sep 18, 2018 in Apache Kafka by kurt_cobain
 • 9,310 points • 235 views
0 votes
1 answer

How to purge Kafka Topic?

For your case what you can do ...READ MORE

Sep 4, 2018 in Apache Kafka by nitinrawat895
 • 10,870 points • 785 views
0 votes
1 answer

Role of Zookeper

Kafka is an open source system and ...READ MORE

Sep 18, 2018 in Apache Kafka by kurt_cobain
 • 9,310 points • 121 views
0 votes
1 answer

Significance of Kafka

High-throughput We do not need any large hardware ...READ MORE

Sep 18, 2018 in Apache Kafka by kurt_cobain
 • 9,310 points • 87 views
0 votes
1 answer

How to delete a topic in Kafka 0.8.1.1?

Deleting topic isn't always working in 0.8.1.1 Deletion ...READ MORE

Sep 4, 2018 in Apache Kafka by nitinrawat895
 • 10,870 points • 376 views
0 votes
1 answer

What is the optimum number of producers to create in Kafka?

In general, a single producer for all ...READ MORE

Jul 10, 2018 in Apache Kafka by nitinrawat895
 • 10,870 points • 2,217 views
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