External port crash in rabbit_mgmt_external_stats:init/1 can affect other processes

[michaelklishin]

See this report. This is the same issue as in rabbitmq/rabbitmq-server#91, except in a different module.

The process should not stop in init/1, in fact, it should not attempt to retrieve the stats there, waiting for a moment is perfectly fine.

[michaelklishin]

Re-assigning to @hairyhum per discussion with him. Thank you for taking over.

[hairyhum]

rabbit_mgmt_external_stats is not emiting any stats in init/1, it sends itself message to emit later. So it's not the same issue. Needs more investigation on impact.

[michaelklishin]

A lot of things have changed since rabbitmq/rabbitmq-management#236, so let's assume this is no longer relevant and see what long running test environments plus user feedback reveal.