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From "Noble Paul (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-9273) Share and reuse config set in a node
Date Wed, 06 Jul 2016 06:33:11 GMT

    [ https://issues.apache.org/jira/browse/SOLR-9273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15363864#comment-15363864
] 

Noble Paul commented on SOLR-9273:
----------------------------------

bq. so I do wonder at the effects on Zookeeper/event notification to the clients.

Today , we read the whole content of all config files on every core load from ZK. Which is
over and above the regular state updates. So, there will be a big reduction in the data read
from ZK.

bq.So would this mean that there's one way of loading solrconfig in stand-alone and one for
SolrCloud? 

We already do it. The ConfigSetService have multiple implementations for cloud & non-cloud.
So, it would be opaque to the API caller, what kind of ConfigSet it is getting

> Share and reuse config set in a node
> ------------------------------------
>
>                 Key: SOLR-9273
>                 URL: https://issues.apache.org/jira/browse/SOLR-9273
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: config-api, Schema and Analysis, SolrCloud
>            Reporter: Shalin Shekhar Mangar
>             Fix For: 6.2, master (7.0)
>
>
> Currently, each core in a node ends up creating a completely new instance of ConfigSet
with its own schema, solrconfig and other properties. This is wasteful when you have a lot
of replicas in the same node with many of them referring to the same config set in Zookeeper.
> There are many issues that need to be addressed for this to work so this is a parent
issue to track the work.



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