This was corrected in Hadoop as per issue HADOOP-917, but I'm thinking some code in Nutch might have to be changed also. I reported this issue (via mailing list) a while ago and I'm glad it was fixed, but I have been purposely staying with revision 495214 of trunk which seems to provide the best stability/performance.
----- Original Message ---- From: Gal Nitzan <[EMAIL PROTECTED]> To: nutch-dev@lucene.apache.org Sent: Wednesday, February 7, 2007 6:36:19 PM Subject: NPE while fetching Hi, I experience NPE while fetching I use Nutch trunk (a week ago) with Hadoop 0.11.1 java.lang.NullPointerException at org.apache.hadoop.io.SequenceFile$Sorter$MergeQueue.merge(SequenceFile.java: 2392) at org.apache.hadoop.io.SequenceFile$Sorter.merge(SequenceFile.java:2087) at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.mergeParts(MapTask.java:498 ) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:191) at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1372) Any pointers to the cause? Thanks, Gal.