[erlang-questions] process restarts and dropped messages
Sat Aug 23 21:32:20 CEST 2014
Message sent are always successful.
This is my scenario: use gen_server behavior.
Client A has supervisor A.
Server B has supervisor B.
if B crashes, client A will receive a badmessage (or no message at all).
So A will crash too.
The A supervisor will relaunch it, and also B supervisor will do the same for B.
So if this error is infrequent, all is fine.
Otherwise there is no easy way to fix it.
On 23/ago/2014, at 05:52, Chris Pacejo <colanderman@REDACTED> wrote:
> Hi list,
> Consider the case of a gen_server which crashes and is restarted by
> its supervisor. If the gen_server had outstanding casts in its
> mailbox, it will lose them. If the server is restarted quickly
> enough, any clients communicating with it will be unaware of this
> crash, and thus unaware that these messages were dropped.
> What is the standard way of avoiding this issue (assuming crashing the
> client is acceptable)? Favor calls over casts? Link to servers you
> need reliable communication with? Use a reliable message broker?
> erlang-questions mailing list
[ [ [ Giovanni ``Daitan`` Giorgi ] ] ]
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