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From Michael McCandless <>
Subject Re: lucene and solr trunk
Date Tue, 16 Mar 2010 22:55:13 GMT

I like this proposal!

I agree we should not preclude the future (modules), let's just not
hold up dev today until we solve it.

I agree your side by side solution would allow for us to later factor
up modules (eg analyzers).


On Tue, Mar 16, 2010 at 5:47 PM, Michael McCandless
<> wrote:
> But it's actually the reverse?  Solr depends on Lucene but not vice/versa.
> (If instead I proposed making Solr a subdir of Lucene then I'd agree....)
> So... if you checkout only lucene, you can cd there and do all you do
> today with Lucene ("ant test", "ant dist", "svn diff", etc.).
> If you checkout solr, you can cd there and "ant test" will run all of
> Lucene's and all of Solr's tests.  "svn diff" will include any changes
> to lucene and to solr.
> Ie this achieves want we want -- Solr to depend on Lucene but not vice
> versa, right?
> Mike
> On Tue, Mar 16, 2010 at 5:18 PM, Shai Erera <> wrote:
>> I have to agree w/ Jake that putting Lucene under Solr gives the impression
>> as if suddenly Lucene became dependent on it ... and for really no good
>> reasons. Are we making that decision to simplify the build of Solr? What are
>> the problems Solr faces today w.r.t. its build and using a Lucene release or
>> trunk revision?
>> I didn't follow the Lucene/Solr merge on general@, because I didn't even
>> know such a beast exists. So I guess I'm missing something ...
>> Shai
>> On Wed, Mar 17, 2010 at 12:01 AM, Jake Mannix <> wrote:
>>> On Tue, Mar 16, 2010 at 2:53 PM, Yonik Seeley <> wrote:
>>>> > Chiming in just a bit here - isn't there any concern that independent
>>>> > of
>>>> > whether or not people "can"
>>>> > build lucene without checking out solr, the mere fact that Lucene will
>>>> > be
>>>> > effectively a "subdirectory"
>>>> > of solr...  is there no concern that there will then be a perception
>>>> > that Lucene is a subproject of
>>>> > Solr, instead of vice-versa?
>>>> Who would have this perception?
>>>> Casual users will be using downloads.
>>> Developers and dev managers at companies doing build vs. buy decisions
>>> regarding
>>> whether they will do one of the following:
>>> 1) pay big bucks to get FAST or whatever
>>> 2) use Solr (free/cheap!)
>>> 3) pay [variable] bucks to build their own with Lucene
>>> 4) pay [variable but high] to build their own from scratch
>>> I'm not concerned with casual downloaders.  I'm talking about the
>>> companies and people who
>>> may or may not be interested in making multi-million dollar decisions
>>> regarding using or
>>> not using Lucene or Solr.
>>>   -jake

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