On 5/26/2014 12:20 PM, Manikandan Saravanan wrote: > I’m running Nutch 2 on a Hadoop 1.2.1 cluster with 2 nodes. I’m running Solr > 4 separately on a box and I replaced Solr’s schema with Nutch’s Solr-4 > schema. When I run a crawl, I get the following error at the end of the job > > 14/05/26 14:08:32 INFO solr.SolrDeleteDuplicates: SolrDeleteDuplicates: > starting... > 14/05/26 14:08:32 INFO solr.SolrDeleteDuplicates: SolrDeleteDuplicates: Solr > url: http://10.130.231.16:8983/solr/nutch > 14/05/26 14:08:33 WARN mapred.JobClient: No job jar file set. User classes > may not be found. See JobConf(Class) or JobConf#setJar(String). > 14/05/26 14:08:33 INFO mapred.JobClient: Running job: job_201405261214_0014 > 14/05/26 14:08:34 INFO mapred.JobClient: map 0% reduce 0% > 14/05/26 14:08:43 INFO mapred.JobClient: Task Id : > attempt_201405261214_0014_m_000000_0, Status : FAILED > java.lang.RuntimeException: java.lang.ClassNotFoundException: > org.apache.nutch.indexer.solr.SolrDeleteDuplicates$SolrInputFormat > at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:857) > at > org.apache.hadoop.mapreduce.JobContext.getInputFormatClass(JobContext.java:187) > at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:722) > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364) > at org.apache.hadoop.mapred.Child$4.run(Child.java:255) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190) > at org.apache.hadoop.mapred.Child.main(Child.java:249) > Caused by: java.lang.ClassNotFoundException: > org.apache.nutch.indexer.solr.SolrDeleteDuplicates$SolrInputFormat
I am not subscribed to the nutch mailing list, so I have removed that list from the recipients here. If you look at the last line that I quoted above, you'll see that the exception is caused by the inability of Java to locate a class, and that the class is a Nutch class. I just built Nutch 2.2.1 on my server, and the strange thing here is that this class seems to be part of the main apache nutch jar, so I have no idea how you are using nutch without this class being present. Because this is a nutch class that is missing and not a Solr class, the Solr mailing list can't really provide much help. Thanks, Shawn
