Hi all,
I'd like to get some feedback regarding the upcoming Lucene/Solr 8 release.
There are still some cleanups and docs to add on the Lucene side but it
seems that all blockers are resolved.
>From a Solr perspective are there any important changes that need to be
done or are we still good with the October target for the release ? Adrien
mentioned the Star Burst effort some time ago, is it something that is
planned for 8 ?

Cheers,
Jim

Le mer. 1 août 2018 à 19:02, David Smiley <[email protected]> a
écrit :

> Yes, that new BKD/Points based code is definitely something we want in 8
> or 7.5 -- it's a big deal.  I think it would also be awesome if we had
> highlighter that could use the Weight.matches() API -- again for either 7.5
> or 8.  I'm working on this on the UnifiedHighlighter front and Alan from
> other aspects.
> ~ David
>
> On Wed, Aug 1, 2018 at 12:51 PM Adrien Grand <[email protected]> wrote:
>
>> I was hoping that we would release some bits of this new support for geo
>> shapes in 7.5 already. We are already very close to being able to index
>> points, lines and polygons and query for intersection with an envelope. It
>> would be nice to add support for other relations (eg. disjoint) and queries
>> (eg. polygon) but the current work looks already useful to me.
>>
>> Le mer. 1 août 2018 à 17:00, Robert Muir <[email protected]> a écrit :
>>
>>> My only other suggestion is we may want to get Nick's shape stuff into
>>> the sandbox module at least for 8.0 so that it can be tested out. I
>>> think it looks like that wouldn't delay any October target though?
>>>
>>> On Wed, Aug 1, 2018 at 9:51 AM, Adrien Grand <[email protected]> wrote:
>>> > I'd like to revive this thread now that these new optimizations for
>>> > collection of top docs are more usable and enabled by default in
>>> > IndexSearcher (https://issues.apache.org/jira/browse/LUCENE-8060). Any
>>> > feedback about starting to work towards releasing 8.0 and targeting
>>> October
>>> > 2018?
>>> >
>>> >
>>> > Le jeu. 21 juin 2018 à 09:31, Adrien Grand <[email protected]> a
>>> écrit :
>>> >>
>>> >> Hi Robert,
>>> >>
>>> >> I agree we need to make it more usable before 8.0. I would also like
>>> to
>>> >> improve ReqOptSumScorer (
>>> https://issues.apache.org/jira/browse/LUCENE-8204)
>>> >> to leverage impacts so that queries that incorporate queries on
>>> feature
>>> >> fields (https://issues.apache.org/jira/browse/LUCENE-8197) in an
>>> optional
>>> >> clause are also fast.
>>> >>
>>> >> Le jeu. 21 juin 2018 à 03:06, Robert Muir <[email protected]> a écrit
>>> :
>>> >>>
>>> >>> How can the end user actually use the biggest new feature: impacts
>>> and
>>> >>> BMW? As far as I can tell, the issue to actually implement the
>>> >>> necessary API changes (IndexSearcher/TopDocs/etc) is still open and
>>> >>> unresolved, although there are some interesting ideas on it. This
>>> >>> seems like a really big missing piece, without a proper API, the
>>> stuff
>>> >>> is not really usable. I also can't imagine a situation where the API
>>> >>> could be introduced in a followup minor release because it would be
>>> >>> too invasive.
>>> >>>
>>> >>> On Mon, Jun 18, 2018 at 1:19 PM, Adrien Grand <[email protected]>
>>> wrote:
>>> >>> > Hi all,
>>> >>> >
>>> >>> > I would like to start discussing releasing Lucene/Solr 8.0. Lucene
>>> 8
>>> >>> > already
>>> >>> > has some good changes around scoring, notably cleanups to
>>> >>> > similarities[1][2][3], indexing of impacts[4], and an
>>> implementation of
>>> >>> > Block-Max WAND[5] which, once combined, allow to run queries faster
>>> >>> > when
>>> >>> > total hit counts are not requested.
>>> >>> >
>>> >>> > [1] https://issues.apache.org/jira/browse/LUCENE-8116
>>> >>> > [2] https://issues.apache.org/jira/browse/LUCENE-8020
>>> >>> > [3] https://issues.apache.org/jira/browse/LUCENE-8007
>>> >>> > [4] https://issues.apache.org/jira/browse/LUCENE-4198
>>> >>> > [5] https://issues.apache.org/jira/browse/LUCENE-8135
>>> >>> >
>>> >>> > In terms of bug fixes, there is also a bad relevancy bug[6] which
>>> is
>>> >>> > only in
>>> >>> > 8.0 because it required a breaking change[7] to be implemented.
>>> >>> >
>>> >>> > [6] https://issues.apache.org/jira/browse/LUCENE-8031
>>> >>> > [7] https://issues.apache.org/jira/browse/LUCENE-8134
>>> >>> >
>>> >>> > As usual, doing a new major release will also help age out old
>>> codecs,
>>> >>> > which
>>> >>> > in-turn make maintenance easier: 8.0 will no longer need to care
>>> about
>>> >>> > the
>>> >>> > fact that some codecs were initially implemented with a
>>> random-access
>>> >>> > API
>>> >>> > for doc values, that pre-7.0 indices encoded norms differently, or
>>> that
>>> >>> > pre-6.2 indices could not record an index sort.
>>> >>> >
>>> >>> > I also expect that we will come up with ideas of things to do for
>>> 8.0
>>> >>> > as we
>>> >>> > feel that the next major is getting closer. In terms of planning,
>>> I was
>>> >>> > thinking that we could target something like october 2018, which
>>> would
>>> >>> > be
>>> >>> > 12-13 months after 7.0 and 3-4 months from now.
>>> >>> >
>>> >>> > From a Solr perspective, the main change I'm aware of that would be
>>> >>> > worth
>>> >>> > releasing a new major is the Star Burst effort. Is it something we
>>> want
>>> >>> > to
>>> >>> > get in for 8.0?
>>> >>> >
>>> >>> > Adrien
>>> >>>
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>>> >>>
>>> >
>>>
>>> ---------------------------------------------------------------------
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>>>
>>> --
> Lucene/Solr Search Committer, Consultant, Developer, Author, Speaker
> LinkedIn: http://linkedin.com/in/davidwsmiley | Book:
> http://www.solrenterprisesearchserver.com
>

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