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NN_ENV(7)			nanomsg manual			     NN_ENV(7)

NAME
       nn_env - nanomsg environment variables

SYNOPSIS
       Environment variables that influence the way nanomsg works

DESCRIPTION
       This functionality is experimental and a subject to change at any time

       Following environment variables are used to turn on some debugging for
       any nanomsg application. Please, do not try to parse output and do not
       build business logic based on it.

       NN_PRINT_ERRORS
	   If set to non-empty string nanomsg will print errors to stderr.
	   Some errors will be resolved by nanomsg itself (e.g. if nanomsg
	   can’t establish connection it will retry again in a moment). Some
	   depend on the environment (e.g. port that is bound by another
	   process need to be released). In any case nanomsg will not repeat
	   the error message until error is clear and appear again (e.g.
	   connection established then broken again).

       NN_PRINT_STATISTICS
	   If set to non-empty string nanomsg will print some statistics to
	   stderr. That’s statistics is intended for debugging purposes only.

       NN_STATISTICS_SOCKET
	   The nanomsg address to send statistics to. Nanomsg opens NN_PUB
	   socket and sends statistics there. The data is sent using ESTP
	   protocol.

NOTES
       The output of both debugging facilities (NN_PRINT_ERRORS,
       NN_PRINT_STATISTICS) is intended for reading by human and a subject for
       change at any time (even after 1.0 release).

       The NN_STATISTICS_SOCKET facility is intended to use by system
       administrators to debug network and application issues. The ESTP format
       is stable. But the nanomsg support of it is experimental and is subject
       to change or removal until 1.0 release.

       Anyway, there is no excuse for making application logic based on the
       data described here. And by application logic we mean any of the
       following:

       ·   Load balancing

       ·   Failover

       ·   Routing requests

       ·   Executing nn_connect/nn_bind

       There are other ways for load-balancing and failover in nanomsg. If you
       feel you can’t do something, consider ask on the mailing list first.

SEE ALSO
       nanomsg(7)

       http://github.com/estp

       http://github.com/estp/estp/blob/master/specification.rst

AUTHORS
       Paul Colomiets <paul@colomiets.name[1]>

NOTES
	1. paul@colomiets.name
	   mailto:paul@colomiets.name

nanomsg Unknown			  12/23/2015			     NN_ENV(7)

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