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From Ted Yu <yuzhih...@gmail.com>
Subject Re: hbase bulk load with map reduce error
Date Sat, 11 Jun 2016 11:39:52 GMT
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 <jilani2423@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

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