For the issue that you are facing you can specify condition in your MapReduce for the empty string.

if(str != null && !str.isEmpty()){
// do something 
}



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Regards,
Abhishek Tiwari
edureka! Support Team
On Sat, 2 Apr at 10:17 AM , Sid23.vyas <sid23.vyas@yahoo.com> wrote:
how to deal with the missing values in the datasets..in yoor movie dataset there are some missing values. now iam trying to complete my project using map reduce but in some modules of the project it is giving empty string exception what to do

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