[rabbitmq-discuss] Help tracking down disconnection locations in code

In pretty much every case an #amqp_error{} record will be constructed,
then thrown as an exception. #amqp_error{} is in general constructed and
thrown by a call to rabbit_misc:protocol_error(), so that's probably the
best thing to look for.

Note that some AMQP exceptions lead to connections being disconnected
("hard" errors) while some lead to channels being disconnected ("soft"
errors). Both go through rabbit_misc:protocol_error(). The 0-9-1 XML
spec lists which are which (under "CONSTANTS", near the top).

Can I ask why you want to know though? In general the spec document
lists the error codes that can occur, and each error should be
accompanied by a descriptive text. The only exception is for errors that
happen while the connection is being established (is that what you're
asking about? - in which case I think it's permissions as you already
know, framing errors and internal errors.)

Cheers, Simon

Gah, not quite true. The "silent" disconnections include anything that
goes wrong before sending connection.open-ok, which at a quick glance at
rabbit_reader looks like the possibilities listed above plus the
requested frame_max being out of bounds. In theory it could be that
heartbeat or channel_max could be out of bounds too, but in practice our
"negotiation" for those options is to grant whatever the client asks for.

I don't like this bit of the spec.

Cheers, Simon