[erlang-questions] SO_REUSEPORT with UDP

[Benoit Chesneau]

On Thu, May 21, 2015 at 3:04 PM pablo platt <pablo.platt@REDACTED> wrote:

> Hi,
>
> How can I have multiple workers listen on the same UDP port on Linux?
> SO_REUSEADDR or SO_REUSEPORT are suggested in several places but I
> couldn't find how to use it.
>
>
In Erlang you can use the raw option to use REUSE_PORT on your platform:

https://github.com/refuge/rbeacon/blob/master/src/rbeacon.erl#L414-L425

and:

https://github.com/refuge/rbeacon/blob/master/src/rbeacon.erl#L400-L412

- benoit


> What's the difference between SO_REUSEADDR and SO_REUSEPORT?
>
> Do I just listen on the same IP/Port with gen_udp several times with the
> option {reuseaddr, true}?
> Is there an equivalent reuseport option?
>
> Thanks
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