On Wed, Dec 21, 2011 at 21:04, Ciprian Dorin Craciun
<[email protected]> wrote:
> On Thu, Dec 15, 2011 at 17:42, Jeremy Raymond <[email protected]> wrote:
>> Hello,
>>
>> Are calls to the client riakc_pb_socket server blocking if I'm reusing the
>> same Pid across multiple threads? The pb_socket server will only process one
>> request at a time?
>>
>> --
>> Jeremy
(The pevious email was "truncated"... :) )
Disclaimer: I've only roughly used the `riak_erlang_client` library,
so take my opinion with a grain of "doubt".
From what I've seen by quickly looking into the Erlang code, it seems that:
* one request will block the client process (as it uses normal
`gen_server:call` function);
* but two requests from different processes don't "block" the
`riakc_pb_socket` process, as
* internally there is a queue of pending requests, handled in FIFO way;
* but if a lot of requests queue there and stay more than the
timeout option for `gen_server:call` I think they are still going to
be serviced way after you've received a timeout error in your code;
(this has to be investigated);
My solution is to create a pool of `riakc_pb_socket` and
round-robin through them.
Hope this helps a bit,
Ciprian.
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