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Posted to solr-dev@lucene.apache.org by "Noble Paul (JIRA)" <ji...@apache.org> on 2009/06/11 07:17:07 UTC

[jira] Commented: (SOLR-920) Cache and reuse IndexSchema

    [ https://issues.apache.org/jira/browse/SOLR-920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12718299#action_12718299 ] 

Noble Paul commented on SOLR-920:
---------------------------------

committed :r783631

> 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
>         Attachments: SOLR-920.patch, SOLR-920.patch, SOLR-920.patch
>
>
> 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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