perl-modperl mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "McCarrell, Jeff" <jmcca...@akamai.com>
Subject Re: How do you use mod_perl for your web application?
Date Mon, 27 Jun 2011 19:00:04 GMT
On 6/27/11 11:44 AM, "McCarrell, Jeff" <jmccarre@akamai.com> wrote:

>While this may not be the last word on this subject of DBIx::Class Db conn
>caching,
>a cursory glance at the documentation shows:
>(http://search.cpan.org/~frew/DBIx-Class-0.08192/lib/DBIx/Class/Manual/Int
>r
>o.pod#Connecting)
>
>	Note that DBIx::Class::Schema does not cache connections for
>        you. If you use multiple connections, you need to do this
>        manually.

Poking a little bit further,
(http://search.cpan.org/~frew/DBIx-Class-0.08192/lib/DBIx/Class/Storage/DBI
.pm#connect_info)
it looks like DBIx::Class caches statement handles via DBI
(see disable_sth_caching which explicitly disables this caching)
and that the design is oriented toward re-connecting to the DB
transparently,
as long as AutoCommit is turned on; which Apache::DBI also does.
I believe that DBIx::Class is not as well suited for interleaving
different SQL statements on the same connection as Apache::DBI because of
its
deeper assumptions about error handling and the state it assumes
across SQL statements.

So it appears that DBIx::Class does do its own connection handling,
but aimed at a different design center than Apache::DBI.

HTH,

-- jeff


Mime
View raw message