NN_PAIR(7) nanomsg manual NN_PAIR(7)NAMEnn_pair - one-to-one scalability protocol
SYNOPSIS
#include <nanomsg/nn.h>
#include <nanomsg/pair.h>
DESCRIPTION
Pair protocol is the simplest and least scalable scalability protocol.
It allows scaling by breaking the application in exactly two pieces.
For example, if a monolithic application handles both accounting and
agenda of HR department, it can be split into two applications
(accounting vs. HR) that are run on two separate servers. These
applications can then communicate via PAIR sockets.
The downside of this protocol is that its scaling properties are very
limited. Splitting the application into two pieces allows to scale the
two servers. To add the third server to the cluster, application has to
be split once more, say by separating HR functionality into hiring
module and salary computation module. Whenever possible, try to use one
of the more scalable protocols instead.
Socket Types
NN_PAIR
Socket for communication with exactly one peer. Each party can send
messages at any time. If the peer is not available or send buffer
is full subsequent calls to nn_send(3) will block until it’s
possible to send the message.
Socket Options
No protocol-specific socket options are defined at the moment.
SEE ALSOnn_bus(7)nn_pubsub(7)nn_reqrep(7)nn_pipeline(7)nn_survey(7)nanomsg(7)AUTHORS
Martin Sustrik <sustrik@250bpm.com[1]>
NOTES
1. sustrik@250bpm.com
mailto:sustrik@250bpm.com
nanomsg Unknown 12/23/2015 NN_PAIR(7)
