[Info-vax] How would you load balance excess webserver traffic between multiple OpenVMS servers?

[Marc Van Dyck]

Arne Vajhøj formulated the question :
> On 1/11/2021 9:45 AM, Marc Van Dyck wrote:
>> Arne Vajhøj expressed precisely :
>>> On the web servers you need the application code & data to stay resident
>>> in memory and reuse threads/processes to process requests as
>>> starting processes and loading images are expensive. And
>>> the database connections need to be managed by a connection pool
>>> as open connection is expensive (note that a connection pool
>>> also require application code& data resident in memory).
>>>
>> Wasn't ACMS made to solve just that problem ? Has one already tried to
>> implement a web server with ACMS - assuming anyone still knows the
>> product, that is ?
>
> I know little about ACMS, but it is my clear impression that it
> is way more than a database connection pool.
>
> A database connection pool is really a simple concept.
>
> Without pool: request processing opens a physical connection
> to the database, do what it need to do and closes connection.
>
> With pool: at startup N connections are made, request processing
> borrows a connection from the pool use it and return it.
>
> There can be some bells and whistles with pool size
> increasing and decreasing over time depending on demand,
> the pool making keep alive queries, failover handling etc. -
> but the basics are very simple.
>
> Arne

My answer was about the whole paragraph, not just the last sentence...
I.e. also keeping code in memory and re-using existing processes.

-- 
Marc Van Dyck