On Fri, Mar 16, 2012 at 9:00 AM, <riak-users-requ...@lists.basho.com> wrote:
> > Given Mathias Meyer's talk at Scotland Ruby Conference about eventmachine > programming (while wearing a Riak t-shirt!), I was hoping to see a little > bit more in terms of eventmachine clients and Riak. > > Has anyone used EventMachine and/or em-synchrony with Riak and could give > me some advice? I'm using ruby-riak-client at this point and going the > route of trying to wrap my workflow in fibers so riak client plays nice > with it. > > Am I better off just using a HTTP client like EM::HttpRequest or > EM::Synchrony::Multi, or is there some good way to use ruby-riak-client or > ripple with eventmachine that requires less manual intervention? > > Sorry if this has been covered somewhere else but I haven't had much luck > finding anyone else using EM with Riak. > If you look at the list archive's you'll see that a while ago I posted some code to monkey patch the Ruby client to use EM Synchrony's TCPSocket so as to support EM. You'll find it at http://lists.basho.com/pipermail/riak-users_lists.basho.com/2011-November/006308.html . Do note that there is a bug in the emulation that TCPSocket provides that I submitted to Ilya at https://github.com/igrigorik/em-synchrony/pull/81. The issue is that synchrony's TCPSocket behaves like recv, not read, which can cause problem (short reads if the incoming buffer is not full). My initial patch was not a complete fix and I've not had time to revisit the issue. Maybe you can take it from there. In any case, if you don't mind a few dropped connections because of short reads, the use of synchrony's TCPSocket works relatively well. We are using it in production. Elias Levy
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