[rabbitmq-discuss] Open Connections when sender closes

[Michael Klishin]

On oct 8, 2013, at 12:21 a.m., Warrick Fitzgerald <warrick.fitzgerald at gmail.com> wrote:

> Obviously after this happens a few times there's a lot of connections open to RabbitMQ.
> 
> How should this be handled? Does the server have some kind of timeout of heartbeat that can be used so that it cleans up the connections that are no longer in use?

Those connections are very likely to be in TIME_WAIT state.

Yes, detecting peer failure early is exactly what AMQP 0-9-1 heartbeats
were added for:
http://www.rabbitmq.com/reliability.html#connection-failures

Alternatively you can try enabling SO_LINGER on the socket (if your client
allows modifying socket options).

See http://rabbitmq.1065348.n5.nabble.com/Long-timeout-if-server-host-becomes-unreachable-td30275.html,
which is the same question about a specific client.

MK



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