Mailing List Archive: docValues & facets

docValues & facets

Jun 10, 2019, 7:54 PM

Post #1 of 4 (390 views)

Hi there,
We recently changed a field from TextField no docValues to
SortableTextField which has docValues enabled by default. Once we did this
we do not see any facet values for the field. I know that once all the docs
are re-indexed facets should work again, however can someone clarify the
current logic of lucene how facets will be computed when schema is changed
from no docValues to docValues and vice-versa?

1. Until ALL the docs are re-indexed, no facets will be returned?
2. Once certain fraction of docs/segments are re-indexed, those facets will
be returned?
3. Something else?

Thanks

Re: docValues & facets [ In reply to ]

jpountz at gmail

Jun 11, 2019, 12:01 AM

Post #2 of 4 (389 views)

Permalink

Hi John,

You probably meant to send this to the solr-user@lucene.a.o list, this
java-user@ mailing list is for questions about Lucene.

On Tue, Jun 11, 2019 at 4:54 AM John Davis <johndavis925254@gmail.com> wrote:
>
> Hi there,
> We recently changed a field from TextField no docValues to
> SortableTextField which has docValues enabled by default. Once we did this
> we do not see any facet values for the field. I know that once all the docs
> are re-indexed facets should work again, however can someone clarify the
> current logic of lucene how facets will be computed when schema is changed
> from no docValues to docValues and vice-versa?
>
> 1. Until ALL the docs are re-indexed, no facets will be returned?
> 2. Once certain fraction of docs/segments are re-indexed, those facets will
> be returned?
> 3. Something else?
>
> Thanks

--
Adrien

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Re: docValues & facets [ In reply to ]

johndavis925254 at gmail

Jun 11, 2019, 8:26 AM

Post #3 of 4 (385 views)

Permalink

Solr folks mentioned this is dependent on lucene's behavior of merging
segments. I am not sure where the right answer lies..

On Tue, Jun 11, 2019 at 12:01 AM Adrien Grand <jpountz@gmail.com> wrote:

> Hi John,
>
> You probably meant to send this to the solr-user@lucene.a.o list, this
> java-user@ mailing list is for questions about Lucene.
>
> On Tue, Jun 11, 2019 at 4:54 AM John Davis <johndavis925254@gmail.com>
> wrote:
> >
> > Hi there,
> > We recently changed a field from TextField no docValues to
> > SortableTextField which has docValues enabled by default. Once we did
> this
> > we do not see any facet values for the field. I know that once all the
> docs
> > are re-indexed facets should work again, however can someone clarify the
> > current logic of lucene how facets will be computed when schema is
> changed
> > from no docValues to docValues and vice-versa?
> >
> > 1. Until ALL the docs are re-indexed, no facets will be returned?
> > 2. Once certain fraction of docs/segments are re-indexed, those facets
> will
> > be returned?
> > 3. Something else?
> >
> > Thanks
>
>
>
> --
> Adrien
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
>

Re: docValues & facets [ In reply to ]

jpountz at gmail

Jun 18, 2019, 3:32 AM

Post #4 of 4 (376 views)

Permalink

Hi John,

I believe that the answer is the 2nd option you listed: documents
indexed after the schema change should show up in facets.

On Tue, Jun 11, 2019 at 5:26 PM John Davis <johndavis925254@gmail.com> wrote:
>
> Solr folks mentioned this is dependent on lucene's behavior of merging
> segments. I am not sure where the right answer lies..
>
> On Tue, Jun 11, 2019 at 12:01 AM Adrien Grand <jpountz@gmail.com> wrote:
>
> > Hi John,
> >
> > You probably meant to send this to the solr-user@lucene.a.o list, this
> > java-user@ mailing list is for questions about Lucene.
> >
> > On Tue, Jun 11, 2019 at 4:54 AM John Davis <johndavis925254@gmail.com>
> > wrote:
> > >
> > > Hi there,
> > > We recently changed a field from TextField no docValues to
> > > SortableTextField which has docValues enabled by default. Once we did
> > this
> > > we do not see any facet values for the field. I know that once all the
> > docs
> > > are re-indexed facets should work again, however can someone clarify the
> > > current logic of lucene how facets will be computed when schema is
> > changed
> > > from no docValues to docValues and vice-versa?
> > >
> > > 1. Until ALL the docs are re-indexed, no facets will be returned?
> > > 2. Once certain fraction of docs/segments are re-indexed, those facets
> > will
> > > be returned?
> > > 3. Something else?
> > >
> > > Thanks
> >
> >
> >
> > --
> > Adrien
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > For additional commands, e-mail: java-user-help@lucene.apache.org
> >
> >

--
Adrien

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