Grokking the Advanced System Design Interview
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Kafka Characteristics

Let's explore different characteristics of Kafka.

Storing messages to disks

Kafka writes its messages to the local disk and does not keep anything in RAM. Disks storage is important for durability so that the messages will not disappear if the system dies and restarts. Disks are generally considered to be slow. However, there is a huge difference in disk performance between random block access and sequential access




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