[zeromq-dev] Salt ZeroMQ bug on large deployments

Thomas S Hatch thatch45 at gmail.com
Thu Apr 12 17:56:17 CEST 2012

Now that Salt is getting deployed in ever larger environments we are
running into what appears to be a ZeroMQ bug:

The zeromq assertion we are seeing is this:

Assertion failed: new_sndbuf > old_sndbuf (mailbox.cpp:183)

I think it is associated with the discussion found here:

The sysctl modifications seem to help, but some of our users are still
seeing it, is there anything else that I should be looking out for here?

- Thomas S Hatch
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