lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-2093) Use query-private scope instead of shared Term->TermInfo cache
Date Tue, 24 Nov 2009 11:46:39 GMT
Use query-private scope instead of shared Term->TermInfo cache
--------------------------------------------------------------

                 Key: LUCENE-2093
                 URL: https://issues.apache.org/jira/browse/LUCENE-2093
             Project: Lucene - Java
          Issue Type: Improvement
            Reporter: Michael McCandless
            Priority: Minor
             Fix For: 3.1


Spinoff of LUCENE-2075.

We currently use a shared terms cache so multiple resolves of the same term within execution
of a single query save CPU.  But this ties up a good amount of long term RAM...

So, it might be better to instead create a "query private scope", where places in Lucene like
the terms dict could store & retrieve results.  The scope would be private to each running
query, and would be GCable as soon as the query completes.  Then we've have perfect within
query hit rate...

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


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


Mime
View raw message