What are the advantages of partition design in kafka?

Question

Increase concurrent writes? Disk io can only write one file at a time, right? Can concurrent reading be improved? Disk io can only read one file at a time, right? Increase single write speed? It seems to have nothing to do with partition, right? Increase single read speed? Wouldn’t it be solved with multiple segments?

ringa_lee · Answer

Original answer: Isn’t it the scalability of the topic? Otherwise, the capacity of a single topic can only be limited to the physical machine
Updated answer:
The partitions in the log serve several purposes. First, they allow the log to scale beyond a size that will fit on a single server. Each inpidual partition must fit on the servers that host it, but a topic may have many partitions so it can handle an arbitrary amount of data. Second they act as the unit of parallelism—more on that in a bit.
Official documentation (see above) .
Partitions have two main purposes. 1. Enhance scalability so that it can handle any amount of data. 2. Use it as a parallel unit to improve parallel capabilities (mainly considering this point).
This is my first answer and I only remember the first point~~sorry