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From "Noble Paul (JIRA)" <>
Subject [jira] Commented: (SOLR-920) Cache and reuse IndexSchema
Date Mon, 15 Feb 2010 15:51:27 GMT


Noble Paul commented on SOLR-920:

bq., then all the older versions hang around in the cache forever, right?

nope. The cache key is the FQN of the  file . in replication , the same file is overwritten.
So the cache entry is overwritten

> Cache and reuse IndexSchema
> ---------------------------
>                 Key: SOLR-920
>                 URL:
>             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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