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From "tom liu (JIRA)" <>
Subject [jira] Updated: (SOLR-1395) Integrate Katta
Date Fri, 03 Dec 2010 03:46:20 GMT


tom liu updated SOLR-1395:

    Attachment: katta-solrcores.jpg

pls see the katta-solrcores picture.

proxy and subproxy are different process, and sometimes are in different nodes.

the process with query is :
# proxy that is solrapp on tomcat, receive query that you send from IE or Firefox
# then proxy dispatch query to subproxy
# subproxy is katta nodes that holds DeployableSolrKattaServer
# so, with spliting shards, subproxy redispatch query to shard
# every shard is a EmbeddedSolrServer, that holds one solrcore

solrhome in proxy, be set from web.xml or java -DsolrHome=......
but in subproxy, must be set in katta script
in EmbeddedSolrServer, solrhome set automaticly.

> Integrate Katta
> ---------------
>                 Key: SOLR-1395
>                 URL:
>             Project: Solr
>          Issue Type: New Feature
>    Affects Versions: 1.4
>            Reporter: Jason Rutherglen
>            Priority: Minor
>             Fix For: Next
>         Attachments: back-end.log, front-end.log, hadoop-core-0.19.0.jar, katta-core-0.6-dev.jar,
katta-solrcores.jpg,,, log4j-1.2.13.jar, solr-1395-1431-3.patch,
solr-1395-1431-4.patch, solr-1395-1431-katta0.6.patch, solr-1395-1431-katta0.6.patch, solr-1395-1431.patch,
solr-1395-katta-0.6.2-1.patch, solr-1395-katta-0.6.2-2.patch, solr-1395-katta-0.6.2-3.patch,
solr-1395-katta-0.6.2.patch, SOLR-1395.patch, SOLR-1395.patch, SOLR-1395.patch, test-katta-core-0.6-dev.jar,
zkclient-0.1-dev.jar, zookeeper-3.2.1.jar
>   Original Estimate: 336h
>  Remaining Estimate: 336h
> We'll integrate Katta into Solr so that:
> * Distributed search uses Hadoop RPC
> * Shard/SolrCore distribution and management
> * Zookeeper based failover
> * Indexes may be built using Hadoop

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