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From Stanley Iriele <siriele...@gmail.com>
Subject RE: [RESOLVED] Reduce overflow errors when number of documents >= 10?
Date Tue, 02 Jul 2013 15:10:13 GMT
Awesome.... Also you could just change the reduce function to (bare with me
I'm typing on my phone)

Function( keys, values, rereduce) {
  If (rereduce){
Return sum(value);
}
Return values.length;

}

Happy coding sir :-D
On Jul 2, 2013 8:03 AM, "N S Cuka" <nscuka@gmail.com> wrote:

> Thank you everyone for your help. The issue was in fact with another
> (unrelated) view's map/reduce.  With the other view, my map function was
> getting a list of terms and emitting the doc id for each term. I was also
> trying to count the number of terms though with the reduce function, so I
> in
> essence had:
>
> Map: emit(term, document.id)
> Reduce: sum(value)
>
> So the reduce function was trying to sum the document ids, which was
> causing
> the error. If I restructure the view to emit(term, 1) then the error goes
> away. I need to restructure that particular view to do what I want, but at
> least that appears to solve the problem.
>
> Thanks again for the help
>
> - N
>
>
>
> -----Original Message-----
> From: Stanley Iriele [mailto:siriele2x3@gmail.com]
> Sent: Tuesday, July 02, 2013 10:32 AM
> To: user@couchdb.apache.org
> Subject: Re: Reduce overflow errors when number of documents >= 10?
>
> Reduce=false is what should be there in the query string On Jul 2, 2013
> 7:30
> AM, "Filippo Fadda" <filippo.fadda@programmazione.it>
> wrote:
>
> >  I just remember you that the option should be reduce="false", not
> > reduce=false.
> >
> > On Jul 2, 2013, at 3:52 PM, N S Cuka wrote:
> >
> > > My reduce function is empty -- i.e. there is no reduce.js file for
> > > that view. I have also tried a null reduce function:
> > >
> > > function (key, values, rereduce)  {
> > >    return null;
> > > }
> > >
> > > As well as an empty reduce.js file.  All of these give me the reduce
> > > overflow error.
> > >
> > > The view that I am using is:
> > >
> > > function(doc) {
> > >       if( doc.type == 'set') {
> > >               emit(doc._id, doc.name);
> > >       }
> > > }
> > >
> > > And the request looks like:
> > >
> > > http://localhost:5984/cuka/_design/testCouch/_view/allSets?reduce=fa
> > > lse
> > >
> > > My documents are some metadata fields for  _attachments consisting
> > > of jpg files.
> > >
> > > Thank you for any insight.
> > >
> > > - N
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Stanley Iriele [mailto:siriele@breaktimestudios.com]
> > > Sent: Monday, July 01, 2013 10:35 PM
> > > To: user@couchdb.apache.org
> > > Subject: Re: Reduce overflow errors when number of documents >= 10?
> > >
> > > Hey...could you paste your reduce function as well?
> > > On Jul 1, 2013 7:20 PM, "N S Cuka" <nscuka@gmail.com> wrote:
> > >
> > >> Hello Everyone,
> > >>
> > >>
> > >>
> > >> I am having a strange problem with my views in Couch DB 1.3.  When
> > >> I have
> > >> 10
> > >> or more documents in my database, for some reason my views are
> > >> bombing out with "reduce_overflow_error".  The views in question
> > >> (which work fine when
> > >> n=9 documents) are both called with reduce=false.  The views are
> > >> very simple and simply select out a document based on type. E.g.:
> > >>
> > >>
> > >>
> > >> <pre>
> > >>
> > >>                if( doc.type == 'set') {
> > >>
> > >>                                emit(doc._id, doc.name);
> > >>
> > >>                }
> > >>
> > >> </pre>
> > >>
> > >>
> > >>
> > >> The error is reproducible when the number of documents (of any
> > >> type, not just type=="set") gets to 10 and disappears when the
> > >> number goes
> > back
> > > to 9.
> > >> Do I need to set the [query_server_config] reduce_limit = false
> > >> server parameter to get this to work? It seems strange that 10 is
> > >> the magic number and this is probably an important clue that I
> > >> can't quite pick up
> > > on.
> > >>
> > >>
> > >>
> > >> The other odd thing is that if I go into futon, go to the view, and
> > >> put in a simple reduce function (just returning null), then the
> > >> view will temporarily work (just in futon though).  If I push the
> > >> same function through Erica then I get the same error back or try
> > >> to access the view that is working in futon through a REST call, it
> still bombs.
> > >> This makes me wonder if there is some kind of encoding issue that
> > >> is causing problems, but I can't see where that would come into play.
> > >> This is an example of a query string that I am using from my couchapp:
> > >>
> > >>
> > >>
> > >> http://localhost:5984/cuka/_design/testCouch/_view/allSets?reduce=f
> > >> als
> > >> e
> > >>
> > >>
> > >>
> > >> TIA for any advice.
> > >>
> > >>
> > >>
> > >> -          N
> > >>
> > >>
> > >>
> > >> Details:
> > >>
> > >> Windows 7
> > >>
> > >> Couchdb 1.3
> > >>
> > >> Firefox 21.0
> > >>
> > >>
> > >>
> > >>
> > >
> >
> >
>
>

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