you should check the log of this mapreduce job. maybe you can find some hints.
2016-03-07 17:27 GMT+08:00 热爱大发挥 <[email protected]>: > nullPointException happen on step 2 > > #2 Step Name: Extract Fact Table Distinct Columns > > 2016-03-07 03:23:03.889 - State of Hadoop job: > job_1457321012016_0070:ACCEPTED - UNDEFINED > 2016-03-07 03:23:13.916 - State of Hadoop job: > job_1457321012016_0070:RUNNING - UNDEFINED > 2016-03-07 03:23:23.954 - State of Hadoop job: > job_1457321012016_0070:RUNNING - UNDEFINED > 2016-03-07 03:23:33.981 - State of Hadoop job: > job_1457321012016_0070:FINISHED - SUCCEEDED > org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException): > java.lang.NullPointerException > at > org.apache.hadoop.mapreduce.v2.hs.HistoryClientService$HSClientProtocolHandler.getCounters(HistoryClientService.java:228) > at > org.apache.hadoop.mapreduce.v2.api.impl.pb.service.MRClientProtocolPBServiceImpl.getCounters(MRClientProtocolPBServiceImpl.java:159) > at > org.apache.hadoop.yarn.proto.MRClientProtocol$MRClientProtocolService$2.callBlockingMethod(MRClientProtocol.java:281) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:587) > at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1026) > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2013) > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2009) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1642) > at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2007) >
