Does this happen during idle period? MySQL does disconnect when the idle
is too long.
Dustin D. wrote:
I'm having countless problems with mod_perl and not even sure where to
start. I thought I had mod_perl up and running in my development
environment, so I pushed the new changes + apache configuration out to
my production environment, and immediately began tail -f on the logs.
What I noticed was, most of the time, everything was working fine.
But it seemed like every few minutes, there would be a burst of the
following errors:
Can't call method "prepare" on an undefined value at
modules//MySQLBroker.pm line 1059.\n
What's strange is, when this error would pop up, it would flood 5-10
errors like this in a row, all within the span of a few seconds. Then
things would return to normal and I wouldn't get any errors for awhile.
On my site, I'm getting hits every couple of seconds, if not more
frequently. In my startup.pl, I have something like this to
initialize the MySQL connection:
Apache::DBI->connect_on_init("DBI:mysql:mydb: 127.0.0.1
<http://127.0.0.1>", "dustin", "mypass",
{
PrintError => 1, # warn( ) on errors
RaiseError => 0, # don't die on error
AutoCommit => 1, # commit executes immediately
}
);
(NOTE: for the hostname, I was using localhost for awhile, and decided
to use a direct ip in case localhost is actually being resolved, to
get rid of one more layer of translation)
My code around line 1059 in MySQLBroker.pm looks like this:
sub _mysql_exec {
my ($self, $dbcall) = @_;
my @resultsArray;
my $count=0;
my $sth = $self->{_dbh}->prepare("$dbcall");
$sth->execute or die "Cannot execute database command!";
while (my @array = $sth->fetchrow) {
push @resultsArray, [EMAIL PROTECTED];
}
$sth->finish;
return [EMAIL PROTECTED];
}
Also, on a fairly inconsistent basis, I'm also getting "not a CODE
reference" errors.
To me, it just seems like mod_perl is very unreliable and
unpredictable. The same code that worked reliably (albeit slow) in
the CGI world is now extremely unpredictable in the mod_perl world.
FYI, I'm aware of the persistent state issues in a mod_perl world and
have gone to great lengths to debug any persistent state issues that
might be affecting things.
At this point in time, I'm extremely tempted to rewrite everything in
PHP. I really want to avoid that, but mod_perl is causing me too many
headaches to justify it, as I've already wasted a week of effort
trying to migrate my site from CGI to mod_perl.
Thanks,
Dustin
