Which of the following is the correct way to enable Snappy compression in a Hadoop job configuration XML?

easy📝 Syntax Q12 of 15

Hadoop - Performance Tuning

<property><name>mapreduce.output.fileoutputformat.compress.codec</name><value>org.apache.hadoop.io.compress.GzipCodec</value></property>

<property><name>mapreduce.output.fileoutputformat.compress.codec</name><value>org.apache.hadoop.io.compress.SnappyCodec</value></property>

<property><name>mapreduce.output.fileoutputformat.compress.codec</name><value>org.apache.hadoop.io.compress.Lz4Codec</value></property>

<property><name>mapreduce.output.fileoutputformat.compress.codec</name><value>org.apache.hadoop.io.compress.Bzip2Codec</value></property>

Step-by-Step Solution

Solution:

Step 1: Identify the property for compression codec
The property key is 'mapreduce.output.fileoutputformat.compress.codec' to set codec class.
Step 2: Match the codec class for Snappy
Snappy codec class is 'org.apache.hadoop.io.compress.SnappyCodec'.
Final Answer:
Property with SnappyCodec class -> Option B
Quick Check:
Snappy codec class = org.apache.hadoop.io.compress.SnappyCodec [OK]

Quick Trick: Snappy codec class ends with SnappyCodec [OK]

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