You configured LZO compression in your Hadoop job, but the job fails with a codec not found error. What is the most likely cause?

medium📝 Debug Q14 of 15

Hadoop - Performance Tuning

ALZO native libraries are not installed or not in the library path

BThe job configuration property name is misspelled

CSnappy codec is enabled instead of LZO

DGzip compression is incompatible with Hadoop

Step-by-Step Solution

Solution:

Step 1: Understand LZO codec requirements
LZO requires native libraries installed on all cluster nodes to work properly.
Step 2: Analyze error cause
Codec not found error usually means native LZO libraries are missing or not accessible in the library path.
Final Answer:
LZO native libraries missing or not in path -> Option A
Quick Check:
LZO needs native libs installed [OK]

Quick Trick: LZO needs native libs installed on cluster nodes [OK]

Common Mistakes:

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