Hi, Currently the batchID is originally set by the GeneratorJob#run() method @line 169 [0], you will see that this can also be overridden by the generate.batch.id property in nutch-site.xml
Currently if you look at line 117 in the crawl script [1] you will see that there is a TODO to capture the batchID programmatically. 1) I would advise you to use this crawl script 2) If you are able to create an issue on Jira, then submit a patch for the issue it would be excellent. Lewis [0] http://svn.apache.org/viewvc/nutch/branches/2.x/src/java/org/apache/nutch/crawl/GeneratorJob.java?view=markup [1] http://svn.apache.org/viewvc/nutch/branches/2.x/src/bin/crawl?view=markup On Fri, Dec 14, 2012 at 11:49 AM, 高睿 <[email protected]> wrote: > Hi, > > When I specify solr in command line, There will be an exception thrown. > Command line: urls -solr http://localhost:8080/solr/ -depth 1 -topN 3 > I tried to add '-batch 3' parameter into command line, but it doesn't > help. I looked into the code, and found the parameter is ignored somewhere. > So, how do I fix this? Thanks. > > Skipping http://www.iguuu.com/thread-944-1-1.html; different batch id > (null) > Skipping http://www.iguuu.com/thread-987-1-1.html; different batch id > (null) > Exception in thread "main" java.lang.NullPointerException > at java.util.Hashtable.put(Unknown Source) > at java.util.Properties.setProperty(Unknown Source) > at org.apache.hadoop.conf.Configuration.set(Configuration.java:438) > at > org.apache.nutch.indexer.IndexerJob.createIndexJob(IndexerJob.java:128) > at > org.apache.nutch.indexer.solr.SolrIndexerJob.run(SolrIndexerJob.java:44) > at org.apache.nutch.crawl.Crawler.runTool(Crawler.java:68) > at org.apache.nutch.crawl.Crawler.run(Crawler.java:192) > at org.apache.nutch.crawl.Crawler.run(Crawler.java:250) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) > at org.apache.nutch.crawl.Crawler.main(Crawler.java:257) > > Regards, > Rui > -- *Lewis*
