Caching Solr Grouping Results

["rubi.hali" <ru...@gmail.com>]

Hi All

Can somebody please explain if we can cache solr grouping results in query
result cache as i dont see any inserts in query result cache once we enabled
grouping?



--
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Re: Caching Solr Grouping Results

[Yasufumi Mizoguchi <ya...@gmail.com>]

Hi,

Have you already tried "group.cache.percent" parameter? It might improve
grouping performance.
Or if you try CollapsingQParser, you can use expand component to acquire
all values in groups, I think.
(
https://lucene.apache.org/solr/guide/6_6/collapse-and-expand-results.html#collapse-and-expand-results
)

thanks,
Yasufumi

2018年5月21日(月) 15:36 rubi.hali <ru...@gmail.com>:

> Hi Yasufumi
>
> Thanks for the reply. Yes, you are correct. I also checked the code and it
> seems the same.
>
> We are facing performance issues due to grouping so wanted to be sure that
> we are not leaving out any possibility of caching the same in Query Result
> Cache.
>
> was just exploring field collapsing instead of grouping but It doesn't
> fulfill our requirement of having all values in a facet for a group instead
> of only grouped value. So we dont have any other choice but to go with
> grouping and may be write some custom cache provider :(
>
>
>
>
>
> --
> Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html
>

Re: Caching Solr Grouping Results

["rubi.hali" <ru...@gmail.com>]

Hi Yasufumi

Thanks for the reply. Yes, you are correct. I also checked the code and it
seems the same. 

We are facing performance issues due to grouping so wanted to be sure that
we are not leaving out any possibility of caching the same in Query Result
Cache.

was just exploring field collapsing instead of grouping but It doesn't
fulfill our requirement of having all values in a facet for a group instead
of only grouped value. So we dont have any other choice but to go with
grouping and may be write some custom cache provider :(





--
Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html

Re: Caching Solr Grouping Results

[Yasufumi Mizoguchi <ya...@gmail.com>]

Hi,

I know few about groping component, but I think it is very hard. Because
query result cache has {query and conditions} -> {DocList} structure.
(
https://github.com/apache/lucene-solr/blob/e30264b31400a147507aabd121b1152020b8aa6d/solr/core/src/java/org/apache/solr/search/SolrIndexSearcher.java#L120
)

But in caching grouping result, query result cache should have {query and
conditions} -> {grouped value, condition, etc...} -> {DocList} structure
cache, I think.

Thanks,
Yasufumi

2018年5月18日(金) 23:41 rubi.hali <ru...@gmail.com>:

> Hi All
>
> Can somebody please explain if we can cache solr grouping results in query
> result cache as i dont see any inserts in query result cache once we
> enabled
> grouping?
>
>
>
> --
> Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html
>