Hello everyone,
I have encountered the following error when I try to use randomwriter (http://wiki.apache.org/lucene-hadoop/RandomWriter) I also changed the configuration to Test.randomwriter.mpas_per_host=5 Test.randomwriter.bytes_per_map=1024*1024 In short, I am trying to generate only one megabyte of data After running bin/hadoop jar hadoop-0.11.2-examples.jar randomwriter 030307kuku RW.conf, here is the error message: It seems that the namenode has problem creating new files to store results. Yet, what troubles (maybe confuses) me is the fact that I just finished running sample grep programs without any error. Currently, there are 3 datanodes and one of them as namenode. I have run 5 sample grep programs concurrently and they all finished fine most of time. Sometimes the progresses would halt for 5 grep programs and I will need to reboot every node and start it over again. Does anybody know how to debug or fix this kind of problem?? Thank you. Best Regards Richard Yang <mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED]
