lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Sivan Yogev (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LUCENE-4258) Incremental Field Updates through Stacked Segments
Date Thu, 22 Nov 2012 13:02:58 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-4258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sivan Yogev updated LUCENE-4258:
--------------------------------

    Attachment: LUCENE-4258.r1412262.patch

New patch with additional testing and bug fixes. 

Currently the term statistics does not take into account field replacements, and therefore
term counts are wrong and CheckIndex fails. 

I can think of two possible solutions for this. The first is for CheckIndex to identify updated
segments and ignore term statistics - is there similar mechanism for deletions?

The other solution is to pre-compute term statistics for updated segments. However, this will
be costly - requires going through the entire posting list for every term, and count non-replaced
occurrences.

Any suggestions?
                
> Incremental Field Updates through Stacked Segments
> --------------------------------------------------
>
>                 Key: LUCENE-4258
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4258
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: core/index
>            Reporter: Sivan Yogev
>         Attachments: IncrementalFieldUpdates.odp, LUCENE-4258-API-changes.patch, LUCENE-4258-inner-changes.patch,
LUCENE-4258.r1410593.patch, LUCENE-4258.r1412262.patch
>
>   Original Estimate: 2,520h
>  Remaining Estimate: 2,520h
>
> Shai and I would like to start working on the proposal to Incremental Field Updates outlined
here (http://markmail.org/message/zhrdxxpfk6qvdaex).

--
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