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From "Otis Gospodnetic (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SOLR-920) Cache and reuse IndexSchema
Date Thu, 21 May 2009 23:21:45 GMT

    [ https://issues.apache.org/jira/browse/SOLR-920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12711856#action_12711856
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Otis Gospodnetic commented on SOLR-920:
---------------------------------------

Looks good to me.  What happens when a core has a copy of schema.xml in its conf/ dir and
that schema.xml is potentially different from the shared one?


> Cache and reuse IndexSchema
> ---------------------------
>
>                 Key: SOLR-920
>                 URL: https://issues.apache.org/jira/browse/SOLR-920
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Noble Paul
>            Assignee: Noble Paul
>
> if there are 1000's of cores then the cost of loading unloading schema.xml can be prohibitive
> similar to SOLR-919 we can also cache the DOM object of schema.xml if the location on
disk is same.  All the dynamic properties can be replaced lazily when they are read.
> We can go one step ahead in this case. Th IndexSchema object is immutable . So if there
are no core properties then the same IndexSchema object can be used across all the cores

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