The class cast exception is due to the following reasons:
In the schema.xml, the type of the boost is specified as string
<fields>
<field name="id" type="string" stored="true" indexed="true"/>
<!-- core fields -->
<field name="segment" type="string" stored="true" indexed="false"/>
<field name="digest" type="string" stored="true" indexed="false"/>
<field name="boost" type="string" stored="true" indexed="false"/>
Now the error has been removed..
FYI there is some issue with SolrDeleteDuplicates, most of the users are
getting Null pointer exception..
https://issues.apache.org/jira/browse/NUTCH-1100..
Lewis, i would like to know, what the SolrDeleteDuplicates is doing...?
Regards,
Som
On Thu, Jul 26, 2012 at 8:30 AM, shekhar sharma <shekhar2...@gmail.com>wrote:
> Hello,
> i am getting class cast exception while indexing the pages using solr. i
> am using nutch 1.6
>
> SolrIndexer: starting at 2012-07-26 08:02:21
> SolrIndexer: deleting gone documents: false
> SolrIndexer: URL filtering: false
> SolrIndexer: URL normalizing: false
> SolrIndexer: finished at 2012-07-26 08:02:55, elapsed: 00:00:33
> SolrDeleteDuplicates: starting at 2012-07-26 08:02:55
> SolrDeleteDuplicates: Solr url: http://localhost:8983/solr/
> java.lang.ClassCastException: java.lang.String cannot be cast to
> java.lang.Float
> at
> org.apache.nutch.indexer.solr.SolrDeleteDuplicates$SolrRecord.readSolrDocument(SolrDeleteDuplicates.java:128)
> at
> org.apache.nutch.indexer.solr.SolrDeleteDuplicates$SolrInputFormat$1.next(SolrDeleteDuplicates.java:271)
> at
> org.apache.nutch.indexer.solr.SolrDeleteDuplicates$SolrInputFormat$1.next(SolrDeleteDuplicates.java:241)
> at
> org.apache.hadoop.mapred.MapTask$TrackedRecordReader.moveToNext(MapTask.java:192)
> at
> org.apache.hadoop.mapred.MapTask$TrackedRecordReader.next(MapTask.java:176)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:48)
> at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:358)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307)
> at org.apache.hadoop.mapred.Child.main(Child.java:170)
>
>
> As you can see the UrlNormalizing and UrlFiltering , both are
> false...while doing crawling using Nutch it is true..
>
> i am using Nutch trunk(1.6) and Solr trunk (5.0) and i am using
> schema-solr4.xml (Came with Nutch source, i renamed to schema.xml) and
> copied to example/solr/collections1/conf folder...
>
> Regards,
> SOm
>
