[erlang-questions] [ANN] Erlang/OTP 18.0-rc1 is available for testing.

Felix Gallo <>
Fri Mar 27 17:00:06 CET 2015


I do indeed like {node(), Integer}!  But it would be highly useful to
extend monotonic across distribution as well to permit total order and
comparison; although there are some, ah, implementation details...

On Thu, Mar 26, 2015 at 5:23 PM, Fred Hebert <> wrote:

> On 03/26, Felix Gallo wrote:
>
>> Does the OTP team have any intention to, or thoughts on, implementing
>> 'distributed' as a possible ModifierList entry for unique_integer/1,
>> ensuring unique integers with respect to the visible nodes?
>>
>
> Sounds like you'd like {node(), Integer} or possibly {make_ref(),
> Integer}. If you have a value that is 'unique' for a node (as long as it's
> alove), then including something that uniquely identifies that node along
> with that node-unique value tends to give acceptable results.
>
> Things are trickier if you want this to keep working over multiple node
> restarts.
>
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