Space: Apache Mahout (https://cwiki.apache.org/confluence/display/MAHOUT) Page: Clustering of synthetic control data (https://cwiki.apache.org/confluence/display/MAHOUT/Clustering+of+synthetic+control+data) Comment: https://cwiki.apache.org/confluence/display/MAHOUT/Clustering+of+synthetic+control+data?focusedCommentId=30749957#comment-30749957
Comment added by Feng Sheng: --------------------------------------------------------------------- Hi, Does anybody meet the queue system of hadoop issue as below... Seems the lastest mahout version does not work well with our hadoop.. Anyone has some experience on this? Here is the commad we used: mahout org.apache.mahout.clustering.syntheticcontrol.canopy.Job --input testdata --output mahoutClousterOutPut --t1 <number> --t2 <number> -Dmapred.job.queue.name=hdmi-technology And it generated the following error message: +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Exception in thread "main" org.apache.hadoop.ipc.RemoteException: java.io.IOException: java.lang.NullPointerException at org.apache.hadoop.mapred.QueueManager.getQueueACL(QueueManager.java:380) at org.apache.hadoop.mapred.JobTracker.getQueueAdmins(JobTracker.java:4287) at sun.reflect.GeneratedMethodAccessor30.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:524) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1386) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1382) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:396) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1380) …. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Change your notification preferences: https://cwiki.apache.org/confluence/users/viewnotifications.action
