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From "Mathias Walter (JIRA)" <>
Subject [jira] Commented: (SOLR-1395) Integrate Katta
Date Mon, 06 Sep 2010 08:35:40 GMT


Mathias Walter commented on SOLR-1395:

I also come into this problem, have you deal with it?

Yeah, I got it working by using the Katta Distribution Policy instead of the MultiShard Distributed
Search of Solr. That does not solve the RPC problem, but avoid it completely. Personally,
I think it is better to keep Katta choosing how to distribute the queries to the different
Katta nodes instead of letting Solr to do this.

I'll provide my changes soon.

And btw, how you get these beautiful logs?

I got the logs by configuring the like follows:


# Define the root logger to the system property "katta.root.logger".

# console
# Add "console" to rootlogger above if you want to use this 
log4j.appender.console.layout.ConversionPattern=%5p %d{ISO8601} [%t] %c - %m%n

> 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,,, 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.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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