A Hadoop cluster configuration file has the property dfs.replication=2, but the cluster requires triple replication for fault tolerance. What is the error?

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Hadoop - Cluster Administration

A Hadoop cluster configuration file has the property dfs.replication=2, but the cluster requires triple replication for fault tolerance. What is the error?

AReplication factor is set too low

BReplication factor is set too high

CProperty name is incorrect

DReplication factor cannot be changed

Step-by-Step Solution

Solution:

Step 1: Understand replication factor
Replication factor defines how many copies of data exist; triple replication means factor 3.
Step 2: Identify mismatch
Current setting is 2, which is less than required 3, so it's too low.
Final Answer:
Replication factor is set too low -> Option A
Quick Check:
Replication factor < required = too low [OK]

Quick Trick: Replication factor must match fault tolerance needs [OK]

Common Mistakes:

Assuming property name is wrong
Thinking replication factor can't be changed
Setting replication factor too high

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A Hadoop cluster configuration file has the property dfs.replication=2, but the cluster requires triple replication for fault tolerance. What is the error?

Step 1: Understand replication factor

Step 2: Identify mismatch

Final Answer:

Quick Check:

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