Lev Lvovsky wrote:
It looks like from reading the docs, that the startup.pl file can handle
specifying more than one user for the purpose of making multiple
connections with different database accounts.
I'm having a problem in retrieving these cached connections when running
the code after server startup. Am I correct in assuming that specifying
identical DBI connection parameters in the mod_perl handler as those in
the startup.pl connections will return the $dbh of the corresponding
cached connection?
In using the 'mysql' client to show a list of connections, I see that in
addition to the several cached connections I create upon startup,
running a mod_perl handler creates another db connection (not using the
cached one).
Any pointers appreciated.
is this mod_perl 1 or 2 ?
Setting $Apache::DBI::Debug = 2; and watching you're error log file
should tell you what its doing.
package X;
# database
our $host = 'mysql.x.y';
our $dsn = "dbi:mysql:db;host=$host";
our $user = 'u';
our $pass = 'p';
our %db_attrs = (
RaiseError => 1,
PrintError => 0,
Taint => 0,
AutoCommit => 1,
LongReadLen => 50000,
LongTruncOk => 1,
ShowErrorStatement => 1,
ChopBlanks => 1,
FetchHashKeyName => "NAME_lc",
);
startup.pl:
use X ();
use Apache::DBI (); ## order matters
use DBI (); ## this must be the first use of DBI
Apache::DBI->connect_on_init($X::dsn, $X::user, $X::pass,\%X::attrs);
## having made the above comments, you can do this in httpd.conf also
## using PerlModule lines.
package Y;
use X ();
use DBI ();
use Apache2::Log ();
use Apache2::RequestRec ();
sub get_dbh {
my $r = shift;
my $dbh = eval {
DBI->connect($X::dsn, $X::user, $X::pass, \%X:db_attrs)
};
$r->log_error($@) if $@;
return $dbh;
}
package Z;
use Y ();
sub handler {
my $r = shift;
my $dbh = Y::get_dbh($r);
....
}
What you should end up with is 1 connection per child (assuming prefork)
When you connect, you should get one of those back. If you don't,
you're config is screwed, or your parameters are different.
see also the eg/ directory of the Apache-DBI-1.06.tar.gz
HTH
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