jackrabbit-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Alex Parvulescu (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (JCR-3282) Optimize usage of norms
Date Wed, 28 Mar 2012 14:41:28 GMT

     [ https://issues.apache.org/jira/browse/JCR-3282?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alex Parvulescu updated JCR-3282:
---------------------------------

    Attachment: JCR-3282.patch

attaching proposed patch.

Based on the indexing config we know if a field has its boost changed or not, so if a field
has no boost setting we can safely disable norms.
                
> Optimize usage of norms
> -----------------------
>
>                 Key: JCR-3282
>                 URL: https://issues.apache.org/jira/browse/JCR-3282
>             Project: Jackrabbit Content Repository
>          Issue Type: Improvement
>          Components: indexing, jackrabbit-core
>            Reporter: Alex Parvulescu
>            Assignee: Alex Parvulescu
>         Attachments: JCR-3282.patch
>
>
> There is a very significant potential for optimizing the size of the search index.
> We have seen a case where there were multiple segments with about the same number of
nodes (roughly 10 million), but the size on disk was very different.
> One segment was 19 GB while all others where around 3 GB. The major difference was the
number of fields indexed. The large segment had significantly more fields, which resulted
in a large norms file.
> We should go through our implementation and see where norms are really necessary and
disable tracking of norms wherever possible.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message