On 08/25/2014 06:24 PM, rasta wrote:
Hi,
I have two parallel XHR calls on my page, both arrives at Mango driver
(using morbo). The first one is non-blocking, the second blocking (but I
also tried non-blocking, no difference). The second would not work:
[Mon Aug 25 12:57:37 2014] [error] Non-blocking operations in progress at
/usr/local/share/perl/5.14.2/Mango/Cursor.pm line 206
The driver is initialized like this:
$self->helper(mango => sub { state $mango = Mango->new('mongodb://'.$config
->{mongodb}->{username}.':'.$config->{mongodb}->{password}.'@'.$config->{
mongodb}->{host}.'/'.$config->{mongodb}->{database}) });
Hey Rasta, you're better off doing this in your startup:
$self->attr(_mango => sub { return Mango->new(...) });
$self->helper(mango => return shift->app->_mango);
At least, that's how I generally do it.
And I'm using it (in both cases, just the first is a ->find() on another
collection) like:
$self->render_later;
$self->mango->db->collection('selections')->find_one({username => $username}
=> sub {
my ($collection, $err, $doc) = @_;
$self->render(json => { selection => $doc->{selection} }, status => 200);
});
I don't assume parallel requests could be an issue, I also don't see many
users having the same problem, what am I doing wrong?
The problem occurs when you are trying to execute a blocking operation
when non-blocking operations are already in progress, the usual culprit
for this are helpers. You'll have to find out what's causing a blocking
operation to take place :)
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