Asked By: Luke Torres Date: created: Sep 11 2021

Is Kafka offset unique across partitions

Answered By: Louis Foster Date: created: Sep 13 2021

As Kafka adds each record to a partition, it assigns a unique sequential ID called an offset.

For most applications that level of control isn’t necessary, however, and it’s better to use per-partition ordering and keying to control the order of retrieved data..

Asked By: Anthony Rogers Date: created: Aug 18 2021

How many partitions should a Kafka topic have

Answered By: Landon Powell Date: created: Aug 20 2021

10 partitionsFor most implementations you want to follow the rule of thumb of 10 partitions per topic, and 10,000 partitions per Kafka cluster. Going beyond that amount can require additional monitoring and optimization.

Asked By: Alexander Stewart Date: created: Dec 13 2021

Can a Kafka broker have multiple partitions

Answered By: Donald Rodriguez Date: created: Dec 15 2021

If it is only one Broker, both partitions are stored in same Broker. That means broker count is less than the partition count, multiple partition of same topic is available in any one of the broker. Apache Kafka is distributed system.

Asked By: Aidan Foster Date: created: Aug 04 2021

Is Kafka pull or push

Answered By: Ian Harris Date: created: Aug 04 2021

With Kafka consumers pull data from brokers. Other systems brokers push data or stream data to consumers. … Since Kafka is pull-based, it implements aggressive batching of data. Kafka like many pull based systems implements a long poll (SQS, Kafka both do).

Asked By: Miles Foster Date: created: Sep 01 2021

How many disk partitions should I have

Answered By: Harold Alexander Date: created: Sep 04 2021

Each disk can have up to four primary partitions or three primary partitions and an extended partition. If you need four partitions or less, you can just create them as primary partitions.

Asked By: Patrick Bailey Date: created: Jun 09 2022

Can one consumer read from multiple partitions

Answered By: Oscar Robinson Date: created: Jun 11 2022

One thread will read only from one partition. To read from multiple partitions you need to spawn multiple threads and each thread will read from single partition. You must run this in different thread, otherwise you loose the benefits of having partitions and your performance will take a hit.

Asked By: Luke Watson Date: created: Mar 13 2022

How do you check if Kafka Connect is running

Answered By: Logan Jenkins Date: created: Mar 14 2022

You can use the REST API to view the current status of a connector and its tasks, including the ID of the worker to which each was assigned. Connectors and their tasks publish status updates to a shared topic (configured with status. storage. topic ) which all workers in the cluster monitor.

Asked By: Christian Baker Date: created: Nov 03 2021

What is the purpose of partition in Kafka

Answered By: Howard Wood Date: created: Nov 04 2021

Anatomy of a Kafka Topic Kafka topics are divided into a number of partitions. Partitions allow you to parallelize a topic by splitting the data in a particular topic across multiple brokers — each partition can be placed on a separate machine to allow for multiple consumers to read from a topic in parallel.

Asked By: Henry White Date: created: Sep 06 2022

How many partitions can a broker have

Answered By: Brian Alexander Date: created: Sep 06 2022

4000 partitionsThe current generic recommendation to have no more than 4000 partitions per broker and no more than 200000 partitions per cluster is not enforced by Kafka.

Asked By: Jacob Hill Date: created: Sep 27 2021

How do I decide how many partitions

Answered By: Juan Parker Date: created: Sep 28 2021

A rough formula for picking the number of partitions is based on throughput. You measure the throughout that you can achieve on a single partition for production (call it p) and consumption (call it c). Let’s say your target throughput is t. Then you need to have at least max(t/p, t/c) partitions.

Asked By: Dennis Parker Date: created: Oct 28 2021

Can Kafka have multiple consumers

Answered By: Wyatt Scott Date: created: Oct 28 2021

While Kafka allows only one consumer per topic partition, there may be multiple consumer groups reading from the same partition. Multiple consumers may subscribe to a Topic under a common Consumer Group ID, although in this case, Kafka switches from sub/pub mode to a queue messaging approach.

Asked By: Gavin Allen Date: created: Oct 12 2021

Can we use Kafka without zookeeper

Answered By: Nathaniel Campbell Date: created: Oct 14 2021

As explained by others, Kafka (even in most recent version) will not work without Zookeeper. Kafka uses Zookeeper for the following: Electing a controller. The controller is one of the brokers and is responsible for maintaining the leader/follower relationship for all the partitions.

Asked By: Morgan Foster Date: created: Apr 27 2022

How do I know if Kafka is running

Answered By: Charles Phillips Date: created: Apr 28 2022

I would say that another easy option to check if a Kafka server is running is to create a simple KafkaConsumer pointing to the cluste and try some action, for example, listTopics(). If kafka server is not running, you will get a TimeoutException and then you can use a try-catch sentence.

Asked By: Ian White Date: created: Sep 25 2021

How do I view Kafka partitions

Answered By: Walter Griffin Date: created: Sep 26 2021

Stream kafka-topics describe output for the given topics of interest.Extract only the first line for each topic which contains the partition count and replication factor.Multiply PartitionCount by ReplicationFactor to get total partitions for the topic.Sum all counts and print total.Feb 17, 2016

Asked By: Bruce Mitchell Date: created: Aug 09 2022

Why does Kafka have multiple partitions

Answered By: Nicholas Henderson Date: created: Aug 11 2022

Partitions are spread across the nodes in a Kafka cluster. … Partitions can have copies to increase durability and availability and enable Kafka to failover to a broker with a replica of the partition if the broker with the leader partition fails. This is called the Replication Factor and can be 1 or more.

Asked By: Stanley Cook Date: created: Jul 31 2021

How many Kafka partitions is too many

Answered By: Jose Johnson Date: created: Aug 02 2021

Do not set up too many partitions Each partition in a topic uses a lot of RAM (file descriptors). The load on the CPU will also get higher with more partitions since Kafka needs to keep track of all of the partitions. More than 50 partitions for a topic are rarely recommended good practice.

Asked By: Francis Brown Date: created: Jan 20 2022

Can we increase Kafka partitions

Answered By: Christopher Lopez Date: created: Jan 21 2022

Apache Kafka provides us with alter command to change Topic behaviour and add/modify configurations. We will be using alter command to add more partitions to an existing Topic. Note: While Kafka allows us to add more partitions, it is NOT possible to decrease number of partitions of a Topic.

Asked By: Gregory Hall Date: created: Sep 07 2021

How many Kafka brokers can a cluster maximally have

Answered By: Thomas Harris Date: created: Sep 09 2021

A Kafka cluster can have, 10, 100, or 1,000 brokers in a cluster if needed.

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