Mailing-List: contact solr-dev-help@lucene.apache.org; run by ezmlm
Precedence: bulk
Reply-To: solr-dev@lucene.apache.org
Message-ID: <1744474626.1247826434925.JavaMail.jira@brutus>
Date: Fri, 17 Jul 2009 03:27:14 -0700 (PDT)
From: "Noble Paul (JIRA)" <jira@apache.org>
To: solr-dev@lucene.apache.org
Subject: [jira] Created: (SOLR-1293) Support for large no:of cores and
 faster loading/unloading of cores
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit

Support for large no:of cores and faster loading/unloading of cores
-------------------------------------------------------------------

                 Key: SOLR-1293
                 URL: https://issues.apache.org/jira/browse/SOLR-1293
             Project: Solr
          Issue Type: New Feature
            Reporter: Noble Paul
             Fix For: 1.5


Solr , currently ,is not very suitable for a large no:of homogeneous cores where you require fast/frequent loading/unloading of cores . usually a core is required to be loaded just to fire a search query or to just index one document
The requirements of such a system are.

* Very efficient loading of cores . Solr cannot afford to read and parse and create Schema, SolrConfig Objects for each core each time the core has to be loaded ( SOLR-919 , SOLR-920)
* START STOP core . Currently it is only possible to unload a core (SOLR-880)
* Automatic loading of cores . If a core is present and it is not loaded and a request comes for that load it automatically before serving up a request
* As there are a large no:of cores , all the cores cannot be kept loaded always. There has to be an upper limit beyond which we need to unload a few cores (probably the least recently used ones)
* Automatic allotment of dataDir for cores. If the no:of cores is too high al the cores' dataDirs cannot live in the same dir. There is an upper limit on the no:of dirs you can create in a unix dir w/o affecting performance


-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.