Which version of hbase / Hadoop are you using ? (So that line number matching can be more accurate)
It would be good if you can show your code snippet. Thanks > On Jun 11, 2016, at 12:57 AM, Jilani Shaik <jilani2...@gmail.com> wrote: > > Hi, > > I am trying to do hbase table bulk load from data file using map reduce. in > the process I am getting the Null pointer exception during the shuffle and > sort. I have both mapper and reducer in the flow. where as mapper is ending > with success and reducer not being invoked even setup. > > It is showing the below error in terminal where the job executed. > > Error: java.lang.NullPointerException > at > com.google.common.base.Preconditions.checkNotNull(Preconditions.java:191) > at com.google.common.base.Splitter.split(Splitter.java:375) > at > org.apache.hadoop.hbase.mapreduce.ImportTsv$TsvParser.<init>(ImportTsv.java:151) > at > org.apache.hadoop.hbase.mapreduce.TextSortReducer.setup(TextSortReducer.java:105) > at org.apache.hadoop.mapreduce.Reducer.run(Reducer.java:168) > at > org.apache.hadoop.mapred.ReduceTask.runNewReducer(ReduceTask.java:627) > at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:389) > at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168) > 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:1566) > at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:163) > > > Please let me know what could be the issue. > > > Thanks, > Jilani
