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https://issues.apache.org/jira/browse/SOLR-1395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12982499#action_12982499
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JohnWu commented on SOLR-1395:
------------------------------
TomLiu：
Now in query Core, the exception is org.apache.solr.search.DocSlice cannot
be cast to org.apache.solr.common.SolrDocumentList
the exception is throw by :
// Added by tom liu
SolrDocumentList sdl = (SolrDocumentList)nl.get("response");
which is in public KattaResponse request(String[] shards, KattaRequest
request) method of SolrKattaServer.java
nl is a NamedList,response will back a DocSlice, DocSlice extends DocSetBase
implements DocList, but class SolrDocumentList extends ArrayList<SolrDocument>,
that's can not cast reason!!!
what can I do?
> Integrate Katta
> ---------------
>
> Key: SOLR-1395
> URL: https://issues.apache.org/jira/browse/SOLR-1395
> 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, katta.node.properties,
> katta.zk.properties, 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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