ZooKeeper is a distributed coordination service that plays a critical role in the management and coordination of Kafka clusters. ZooKeeper is used by Kafka to maintain the state of the cluster and to ensure that the cluster operates correctly. In Kafka, ZooKeeper performs the following functions: 1. Cluster coordination: ZooKeeper is used to manage the … Read more
Kafka Producers and Consumers are key components of Kafka’s messaging system. A Kafka Producer is an application or process that publishes messages to a Kafka topic. Producers can send messages to one or more Kafka topics, and they can also specify which partition within a topic to write messages to. Producers can be designed to … Read more
Kafka guarantees message durability by replicating messages across multiple brokers in a Kafka cluster. When a message is written to Kafka, it is first written to the leader broker for the corresponding partition. The leader broker then replicates the message to the other brokers in the cluster that are assigned to the same partition. Kafka … Read more
Kafka provides configurable options for message retention and cleanup, which allow administrators to control how long messages are retained in Kafka and when they are deleted. Kafka’s retention policy is based on the concept of log compaction, which is a mechanism that ensures that Kafka retains at least one copy of each message key within … Read more
In Kafka, a consumer group is a group of one or more consumers that work together to consume messages from one or more Kafka topics. When a consumer group is created, each consumer within the group is assigned to one or more partitions within the topic, and each partition is assigned to only one consumer … Read more
Kafka guarantees that messages within a partition are ordered by their offset, which is a unique identifier assigned to each message as it is produced. This ensures that messages are processed in the order in which they were produced, even if they are produced by different producers or at different times. Kafka uses a leader-follower … Read more
In Kafka, a partition is a unit of parallelism and storage for a Kafka topic. A partition is essentially a linearly ordered sequence of messages that are assigned a unique, monotonically increasing offset as they are produced. Each partition is stored on a single Kafka broker, but a topic can have multiple partitions, which are … Read more
In Kafka, a topic is a category or stream of messages that are stored and processed by Kafka. It is similar to a table in a database or a folder in a filesystem, and can be thought of as a logical container for the messages that are produced and consumed by Kafka. A topic is … Read more
There are several advantages of using Kafka over traditional messaging systems: 1. Fault Tolerance: Kafka is designed to provide high availability and fault tolerance, ensuring that data is not lost even in the event of hardware failures or other issues. Kafka achieves this through its replication and leader election mechanisms, which ensure that data is … Read more
Kafka is designed to provide high availability and fault tolerance by replicating data across multiple brokers in a Kafka cluster. This replication ensures that data is not lost even in the event of hardware failures or other issues. Kafka achieves fault tolerance and data replication through the following mechanisms: 1. Replication: Kafka replicates data across … Read more