Re: Notify enhancement

Tom Lane wrote:
> Andrew Dunstan <andrew@dunslane.net> writes:
>   
>> Alvaro Herrera wrote:
>>     
>>> What will happen when the ring is full?  NOTIFY blocks?
>>>
>>>       
>> An error, I think, don't you? Blocking seems totally unacceptable.
>>     
>
> That seems like a curious answer.  Imagine the documentation:
> "NOTIFY may fail for no reason whatsoever."  I'd vote for blocking.
> Otherwise, apps have to treat NOTIFY as an unreliable communication
> mechanism, which reduces its use-case to approximately nil.
>
>
>   

OK, good point. I guess I'm a bit concerned about providing a possible 
DOS vector, but it could be either way.

How about Alvaro's suggestion of spilling to disk?

cheers

andrew