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Date: Thu, 1 Dec 2011 20:54:40 +0000 (UTC)
From: "Mark Miller (Commented) (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
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Subject: [jira] [Commented] (SOLR-2821) Improve how cluster state is managed
 in ZooKeeper.
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    [ https://issues.apache.org/jira/browse/SOLR-2821?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13161147#comment-13161147 ] 

Mark Miller commented on SOLR-2821:
-----------------------------------

Sami said he noticed that 150ms of the 200ms it takes to update the cluster state looks like its in parsing the XML. I wonder if json would be faster to parse...
                
> Improve how cluster state is managed in ZooKeeper.
> --------------------------------------------------
>
>                 Key: SOLR-2821
>                 URL: https://issues.apache.org/jira/browse/SOLR-2821
>             Project: Solr
>          Issue Type: Improvement
>          Components: SolrCloud
>            Reporter: Mark Miller
>             Fix For: 4.0
>
>
> Currently, we have issues supporting both incremental cluster state updates (needed because reading the state with many ZK requests does not scale) and allowing shard/node properties to change on the fly. We be nice to have a solution that allows faster cluster state reads and easy on the fly shard/node prop changes.

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