Support Questions
Find answers, ask questions, and share your expertise
Announcements
Alert: Welcome to the Unified Cloudera Community. Former HCC members be sure to read and learn how to activate your account here.

Mapreduce program reading null value from folder

Mapreduce program reading null value from folder

New Contributor

I have created a mapreduce program which reads some files from local and stores them to hdfs after processing.
When I am trying to run this on HDP cluster it reads null value when all files are processed in the folder and throws NullPointerException. This problem is only coming in aws HDP cluster, whereas in our local dev environment all the components are installed separately and the same program is running perfectly.

We are using hdp 2.6.2 version and all the components on dev environment are same as hdp 2.6.2.

2 REPLIES 2

Re: Mapreduce program reading null value from folder

New Contributor

Find the problem first, then solve it because without finding out the problem how would be possible to solve that problem now.dryer vent cleaning

Re: Mapreduce program reading null value from folder

New Contributor

MapReduce, ds, map fun, reduce fun apply map work map fun to include datastore ds and afterward passes the qualities related with do my dissertation for me every one of a kind key to decrease work reduce fun. The yield datastore is a Key Value Datastore object that focuses on .tangle records in the current folder.