[zeromq-dev] cannot send big chunk via PUSH/PULL by pyzmq

[Pieter Hintjens]

- please provide your test case as a minimal program
- don't do any TCP tuning unless you know why you're doing it


On Thu, Apr 23, 2015 at 8:35 AM, Li Ma <skywalker.nick at gmail.com> wrote:
> Hi all,
>
> I wanna test a simple application using PUSH/PULL to send a big chunk of data.
> The application is straightforward.
>
> Server part is to open a PULL socket while client part is sending >1MB
> message per time via PUSH.
>
> The socket is listened on the localhost only.
>
> Any messages less than 200KB are working well, but messages greater
> than 500KB is not working. The socket is stuck after handshake without
> any exceptions.
>
> By the way, I set a large size (>1MB) for SND/RCV BUF and tcp window
> scaling is set to 1.
>
> I'd appreciate any hints to make it work.
>
> --
>
> Li Ma (Nick)
> Email: skywalker.nick at gmail.com
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