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-6561) Add a TermContextCache to IndexSearcher
Date Fri, 12 Jun 2015 19:07:01 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-6561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14583910#comment-14583910
] 

Robert Muir commented on LUCENE-6561:
-------------------------------------

I have concerns, there used to be a terms dict cache, and we removed it because it caused
things like concurrency slowdowns and other issues.

Generally speaking I don't think a cache is beneficial...

> Add a TermContextCache to IndexSearcher
> ---------------------------------------
>
>                 Key: LUCENE-6561
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6561
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Alan Woodward
>         Attachments: LUCENE-6561.patch
>
>
> TermContexts can be quite expensive to build, and if you have fairly complex queries
that re-use the same terms you can end up spending a lot of time re-building the same ones
over and over again.  It would be nice to be able to cache them on an IndexSearcher, so that
they can be re-used.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

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


Mime
View raw message