You can't. Kafka is essentially a queue, so you always read messages one by one. What you can do is disable auto offset commit, read 100 messages, process them and then manually commit offset.
-- Sharninder > On 04-Aug-2015, at 9:07 pm, shahab <shahab.mok...@gmail.com> wrote: > > Hi, > > While we the producer can put data as batch in kafka server, I couldn't > find any API (or any document) saying how we can fetch data as batch from > Kafka ? > Even when data is placed as batch in kafka server, still using High Level > consumer I can only read one by one, and I can not specify. for example, > read 100 items at once! > > Is this correct observation? or I am missing something? > > best, > /Shahab
