The objective of this blog is to build some more understanding of Apache Kafka concepts such as Topics, Partitions, Consumer, and Consumer Groups. Kafka's basic concepts have been covered in my previous article. Kafka Topic & Partitions As we know, messages in Kafka are categorized or stored inside Topics. In simple terms, Topic can be construed as a Database table.
The objective of this blog is to build some more understanding of Apache Kafka concepts such as Topics, Partitions, Consumer, and Consumer Groups. Kafka's basic concepts have been covered in my previous article.
As we know, messages in Kafka are categorized or stored inside Topics. In simple terms, Topic can be construed as a Database table. Kafka Topics inside is broken down into partitions. Partitions allow us to parallelize a topic by splitting the data of a topic across multiple brokers, thus adding an essence of parallelism to the ecosystem.
Messages are written to a partition in an append-only manner, and messages are read from a partition from beginning to end, FIFO mannerism. Each message within a partition is identified by an integer value called offset. _An _offset is an immutable sequential ordering of messages, maintained by Kafka. Anatomy of a Topic with multiple partitions:
Sequential number in array fashion is the offset value maintained by Kafka
Some key points:
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