lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-4769) Add a CountingFacetsAggregator which reads ordinals from a cache
Date Mon, 11 Feb 2013 21:13:12 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-4769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13576128#comment-13576128
] 

Robert Muir commented on LUCENE-4769:
-------------------------------------

I dont know what an aggregator is, but this could also be done as a codec (similar fashion
as 4764)?

isn't it basically DirectFacetingDocValuesFormat, would just hold its data as int[]s and the
collector could get at it like 4764?
                
> Add a CountingFacetsAggregator which reads ordinals from a cache
> ----------------------------------------------------------------
>
>                 Key: LUCENE-4769
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4769
>             Project: Lucene - Core
>          Issue Type: New Feature
>          Components: modules/facet
>            Reporter: Shai Erera
>            Assignee: Shai Erera
>         Attachments: LUCENE-4769.patch
>
>
> Mike wrote a prototype of a FacetsCollector which reads ordinals from a CachedInts structure
on LUCENE-4609. I ported it to the new facets API, as a FacetsAggregator. I think we should
offer users the means to use such a cache, even if it consumes more RAM. Mike tests show that
this cache consumed x2 more RAM than if the DocValues were loaded into memory in their raw
form. Also, a PackedInts version of such cache took almost the same amount of RAM as straight
int[], but the gains were minor.
> I will post the patch shortly.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org


Mime
View raw message