Good idea, but no, that is not the case. I am calling
svr = ew mongodb.Server(...) and
db = new mongodb.Db(...)
only one time at the beginning of the process. And even
coll = db.collection(...)
is only called once per collection, because I am storing them in an array.
>From the second call on I use the array members.
Am Donnerstag, 11. Juli 2013 12:32:05 UTC+2 schrieb Ben Noordhuis:
>
> On Thu, Jul 11, 2013 at 10:14 AM, Jochen Brüggemann
> <[email protected] <javascript:>> wrote:
> > Hi,
> >
> > I am experiencing a very strange problem. I am importing some big
> xml-files
> > and store them into mongoDB. The algorythm is a typical async loop:
> >
> > doLoop = function( it, callback_loop ) {
> > if( it < no_of_items ) {
> > storeToMongo( ..., function( err, result ) {
> > ...
> > doLoop( it+1, callback_loop );
> > });
> > } else {
> > callback_loop();
> > }
> > };
> > doLoop( 0, function() {
> > ...
> > });
> >
> >
> > Now (suddenly without any remarkable change in the code) I get the
> following
> > error while performing the loop:
> >
> > events.js:72
> > throw er; // Unhandled 'error' event
> > ^
> > Error: connect EADDRNOTAVAIL
> > at errnoException (net.js:901:11)
> > at connect (net.js:764:19)
> > at net.js:842:9
> > at dns.js:72:18
> > at process._tickCallback (node.js:415:13)
> >
> > The error happens after approximately a minute. The number of items
> > processed in the meantime is quite the same, but not exactly.
> >
> > I tried to find out what connect/net causes the error, but I am lost.
> There
> > is not socket-connection in my code. I have a connection to redis, but
> that
> > is o.k. Is it the mongoDB-connection? But why does it get lost suddenly?
>
> I suspect that it makes a new connection on each call and that you're
> calling it so often, that it exhausts the ephemeral ports on your
> machine.
>
> > The only thing that helps to run through the whole loop is to perform
> the
> > recursive loop call within the mongo-callback like this:
> >
> > setTimeout( function() {
> > doLoop( it+1, callback_loop );
> > },1);
> >
> > Anyone out there who has an idea what is going wrong here?
> >
> > Thanks,
> > Jochen
>
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