java.lang.ClassCastException: org.apache.hadoop.io.LongWritable cannot be cast to org.apache.avro.mapred.AvroKey

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Stack Overflow by user3004041
, 1 year ago
org.apache.hadoop.io.LongWritable cannot be cast to org.apache.avro.mapred.AvroKey
java.lang.ClassCastException: org.apache.hadoop.io.LongWritable cannot be cast to org.apache.avro.mapred.AvroKey
at somepackage.BalanceByUser$BalanceCountMapper.map(BalanceByUser.java:1)

Users with the same issue

You are the first who have seen this exception. Write a tip to help other users and build your expert profile.

Know the solutions? Share your knowledge to help other developers to debug faster.