2:08 a.m.
Hi all,
Lately i have been thinking about integrating Hibernate Search with Solr.
What i would like to have is Solr using Hibernate Search indexes. I could
not start the implementation because i am working in other things at this
moment. I would like to know any references or ideas....
I don't know if HS puts some metainformation in the indexes and solr can
not read them....i also think that i have to create an schema in solr with
the index fields...
I am working on a very important project using hibernate search as
persistence. My boss asked about this question last week and i decided to
google it a little bit. You can find the post that i wrote here:
https://forum.hibernate.org/viewtopic.php?f=9&t=1015540
Thanks everybody,
Hibernator,
3:53 a.m.
Hi,
On May 25, 2012, at 9:08 AM, Gustavo Candela wrote:
I don't know if HS puts some metainformation in the indexes and
solr can
not read them....i also think that i have to create an schema in solr with
the index fields…
There is no hidden meta information. It's all in a standard Lucene index. Hibernate
Search
requires certain fields to be there in order to work, but if you are just using the index
from Solr
that's not an issue.
Creating a solr index can be everything from simple to quite a lot of work. Obviously you
could
just look at an index the containing fields and create the schema. For a more generic
solution
you would need the meta information about the indexed field. I don't think that Search
exposes
all meta information in a easy to consume way (yet). This is related to
https://hibernate.onjira.com/browse/HSEARCH-436
There wold be obviously much more code to write if you go down this path, but with a much
bigger benefit for Search as well :-)
--Hardy
11:12 a.m.
Hardy,
sorry for having ignored your email and saying basically the same
thing. I just received your email, but it seems you sent it a long
ago! I guess some server between us had trouble today.
Cheers,
Sanne
On 25 May 2012 09:53, Hardy Ferentschik <hardy(a)hibernate.org> wrote:
Hi,
On May 25, 2012, at 9:08 AM, Gustavo Candela wrote:
> I don't know if HS puts some metainformation in the indexes and solr can
> not read them....i also think that i have to create an schema in solr with
> the index fields…
There is no hidden meta information. It's all in a standard Lucene index. Hibernate
Search
requires certain fields to be there in order to work, but if you are just using the index
from Solr
that's not an issue.
Creating a solr index can be everything from simple to quite a lot of work. Obviously you
could
just look at an index the containing fields and create the schema. For a more generic
solution
you would need the meta information about the indexed field. I don't think that
Search exposes
all meta information in a easy to consume way (yet). This is related to
https://hibernate.onjira.com/browse/HSEARCH-436
There wold be obviously much more code to write if you go down this path, but with a
much
bigger benefit for Search as well :-)
--Hardy
_______________________________________________
hibernate-dev mailing list
hibernate-dev(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/hibernate-dev
12:11 p.m.
Np. Just shows that great minds think alike :-)
On 25 May 2012, at 18:12, Sanne Grinovero <sanne(a)hibernate.org> wrote:
Hardy,
sorry for having ignored your email and saying basically the same
thing. I just received your email, but it seems you sent it a long
ago! I guess some server between us had trouble today.
5:24 a.m.
Hi Gustavo,
as I already had replied on the forums, if all you need is to have
Solr read the Hibernate Search index that should already work without
any needed change.
Main points to check:
- use a Solr version which uses a Lucene version which matches
Hibernate Search. Not a strict requirement, but so doing you wouldn't
have to verify more subtle things.
- Make sure that in your architecture only one of the two ever writes
to the index. I guess you want Hibernate Search writing, then make
sure Solr doesn't write to it.
-- Solr had internal caches - make sure they are either disabled or
otherwise *notice* the changes made by Hibernate Search
- Make a Solr schema compatible with your mapped entities
There is one change that could be done in Hibernate Search to make
your work even easier: you could have the DocumentBuilder component of
Hibernate Search to provide some "export metadata" functionality;
so you could write a metadata exported which could create the Solr
schema files automatically from the entity mapping. That would be a
nice contirbution, as others have asked as well to be able to "dump"
or otherwise inspect the "schema" used by Hibernate Search.
Sanne
On 25 May 2012 08:08, Gustavo Candela <gustavo.candelar(a)gmail.com> wrote:
Hi all,
Lately i have been thinking about integrating Hibernate Search with Solr.
What i would like to have is Solr using Hibernate Search indexes. I could
not start the implementation because i am working in other things at this
moment. I would like to know any references or ideas....
I don't know if HS puts some metainformation in the indexes and solr can
not read them....i also think that i have to create an schema in solr with
the index fields...
I am working on a very important project using hibernate search as
persistence. My boss asked about this question last week and i decided to
google it a little bit. You can find the post that i wrote here:
https://forum.hibernate.org/viewtopic.php?f=9&t=1015540
Thanks everybody,
Hibernator,
_______________________________________________
hibernate-dev mailing list
hibernate-dev(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/hibernate-dev
5:35 a.m.
Hi,
Thanks for the response...
At this moment I dont know how to generate the solr schema, i mean any solr
schema. I only worked a little bit with solr but just asking, not any
administration task. So, i think that first task is make work hibernate
search with solr using a shema created by me. Then once i know how to
create this schema, i could think about the function that export the mapped
entities to the solr schema.
About the ElasticSearch, i didn't know about this app, but i think that
reindexing is mandatory....maybe this is problem....
I'll let you know any advance or problem...
thanks everybody
2012/5/25 Sanne Grinovero <sanne(a)hibernate.org>
Hi Gustavo,
as I already had replied on the forums, if all you need is to have
Solr read the Hibernate Search index that should already work without
any needed change.
Main points to check:
- use a Solr version which uses a Lucene version which matches
Hibernate Search. Not a strict requirement, but so doing you wouldn't
have to verify more subtle things.
- Make sure that in your architecture only one of the two ever writes
to the index. I guess you want Hibernate Search writing, then make
sure Solr doesn't write to it.
-- Solr had internal caches - make sure they are either disabled or
otherwise *notice* the changes made by Hibernate Search
- Make a Solr schema compatible with your mapped entities
There is one change that could be done in Hibernate Search to make
your work even easier: you could have the DocumentBuilder component of
Hibernate Search to provide some "export metadata" functionality;
so you could write a metadata exported which could create the Solr
schema files automatically from the entity mapping. That would be a
nice contirbution, as others have asked as well to be able to "dump"
or otherwise inspect the "schema" used by Hibernate Search.
Sanne
On 25 May 2012 08:08, Gustavo Candela <gustavo.candelar(a)gmail.com> wrote:
> Hi all,
>
> Lately i have been thinking about integrating Hibernate Search with Solr.
> What i would like to have is Solr using Hibernate Search indexes. I could
> not start the implementation because i am working in other things at this
> moment. I would like to know any references or ideas....
>
> I don't know if HS puts some metainformation in the indexes and solr can
> not read them....i also think that i have to create an schema in solr
with
> the index fields...
>
> I am working on a very important project using hibernate search as
> persistence. My boss asked about this question last week and i decided to
> google it a little bit. You can find the post that i wrote here:
>
> https://forum.hibernate.org/viewtopic.php?f=9&t=1015540
>
> Thanks everybody,
>
> Hibernator,
> _______________________________________________
> hibernate-dev mailing list
> hibernate-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/hibernate-dev
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5 comments
3 participants
participants (3)
-
Gustavo Candela -
Hardy Ferentschik -
Sanne Grinovero