How can a Hadoop administrator resolve a 'Data Skew' issue in a MapReduce job?
- Combiner Usage
- Custom Partitioning
- Data Replication
- Dynamic Input Splitting
A Hadoop administrator can resolve a 'Data Skew' issue in a MapReduce job by using dynamic input splitting. This involves dynamically adjusting the input splits based on the size of the data to ensure that each mapper gets a balanced workload, mitigating the impact of data skew and improving overall job performance.
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