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What is the main issue caused by having many small files in Hadoop?

easy📝 Conceptual Q11 of 15
Hadoop - Performance Tuning
What is the main issue caused by having many small files in Hadoop?
AIt reduces the number of nodes needed
BIt increases the speed of data processing
CIt slows down processing and wastes storage space
DIt improves data security automatically
Step-by-Step Solution
Solution:

  1. Step 1: Understand Hadoop file handling

    Hadoop is designed to handle large files efficiently, but many small files cause overhead in managing metadata and increase storage waste.

  2. Step 2: Identify the impact of small files

    Small files slow down processing because each file requires separate handling, increasing job setup time and resource use.

  3. Final Answer:

    It slows down processing and wastes storage space -> Option C

  4. Quick Check:

    Small files cause slow processing and storage waste [OK]
Quick Trick: Small files increase overhead and slow Hadoop jobs [OK]
Common Mistakes:
  • Thinking small files speed up processing
  • Assuming small files reduce node usage
  • Believing small files improve security

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