[Zope-dev] Connection policies.

Shane Hathaway shane at zope.com
Wed Oct 1 12:50:17 EDT 2003


Chris McDonough wrote:
>>Forgive me, but I don't see the motivation: a database connection 
>>represents a large chunk of RAM.  Won't the new policies just cause 
>>overloaded sites to also run out of RAM?
> 
> 
> No.  Well, at least one implementation won't. ;-)  We don't reserve a pool of
> database connections for the special servers.  The connection policy can use a
> temporary connection, which AFAIK does not keep a ZODB cache.
> 
> But you're right in the sense that this won't help RAM-bound applications;
> that's what AutoLance is for.  It will help debug sites where there's a
> database connection leak or sites where all public threads are tied up
> waiting for a database connection (if only to be able to restart it via
> the mgmt interface).

Ah!  Ok, so it's meant for admin-only access.  That's a fine idea.

Shane




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