Hi, Carmine. Are you using version 0.1.1-incubating? Sadly, I think in version 0.2.1 and 0.3-SNAPSHOT gora-sql is still not implemented :(
Anyway, how is your gora-sql-mapping.xml? From the trace, my guess is that maybe you forgot to define the "name" attribute. Check that you set the proper attibutes in the 'class' tag [1]. And paste your new gora-sql-mapping.xml. I never used it, but with some luck maybe we can help. Regards, Alfonso Nishikawa [1] - http://grepcode.com/file/repo1.maven.org/maven2/org.apache.gora/gora-sql/0.1.1-incubating/org/apache/gora/sql/store/SqlStore.java#SqlStore.readMapping%28java.lang.String%29 2013/4/11 Carmine Paternoster <[email protected]> > I configured Nutch 2.1 with gora and mySql. Everything worked until I > changed gora-sql-mapping.xml to add new field. > I get these exceptions: > Exception in thread "main" org.apache.gora.util.GoraException: > java.io.IOException: java.lang.NullPointerException > at > > org.apache.gora.store.DataStoreFactory.createDataStore(DataStoreFactory.java:167) > at > > org.apache.gora.store.DataStoreFactory.createDataStore(DataStoreFactory.java:135) > at > org.apache.nutch.storage.StorageUtils.createWebStore(StorageUtils.java:75) > at org.apache.nutch.crawl.InjectorJob.run(InjectorJob.java:214) > at org.apache.nutch.crawl.Crawler.runTool(Crawler.java:68) > at org.apache.nutch.crawl.Crawler.run(Crawler.java:136) > 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) > Caused by: java.io.IOException: java.lang.NullPointerException > at org.apache.gora.sql.store.SqlStore.readMapping(SqlStore.java:878) > at org.apache.gora.sql.store.SqlStore.initialize(SqlStore.java:163) > at > > org.apache.gora.store.DataStoreFactory.initializeDataStore(DataStoreFactory.java:102) > at > > org.apache.gora.store.DataStoreFactory.createDataStore(DataStoreFactory.java:161) > ... 8 more > Caused by: java.lang.NullPointerException > at org.apache.gora.sql.store.SqlStore.addField(SqlStore.java:828) > at org.apache.gora.sql.store.SqlStore.readMapping(SqlStore.java:868) > ... 11 more > > Can anyone help me? Thank you in advance > -- "Drinking bloody marys all night will make you feel like a corpse in the morning."

