Hi Haseeb, Yes, KafkaRequestHandler is a handler thread indeed. The `Handler` singleton object you refer to is unused. I submitted a PR to remove it.
Thanks, Ismael On Tue, Aug 1, 2017 at 10:10 PM, Javed, Haseeb <javed...@buckeyemail.osu.edu > wrote: > Hello, > > > I have recently started looking into the Kafka Server code to get a deeper > understanding of the internals and I have a few questions about the > SocketServer implementation. The documentation for the SocketServer > mentions: > > > /** > * The threading model is > * 1 Acceptor thread that handles new connections > * Acceptor has N Processor threads that each have their own selector > and read requests from sockets > * M Handler threads that handle requests and produce responses back to > the processor threads for writing. > */ > > The Acceptor and Processor threads are implemented in the SocketServer and > I have a decent idea of how they operate. However, where exactly is the > Handler thread defined? Is it the KafkaRequestHandler class in the package > kafka.server? If that is the case then what is the purpose of the Handler > singeton object defined in the kafka.network package? > > > Any help would be really appreciated. > > Haseeb >
