[Solved] Given the command output below, what does it indicate about the cluster's reliability?Live datanodes (3): - node1 - node2 - node3 Dead datanodes (1): - node4 | Hadoop

Hadoop - Cluster Administration

Given the command output below, what does it indicate about the cluster's reliability?

Live datanodes (3):
 - node1
 - node2
 - node3
Dead datanodes (1):
 - node4

AThe cluster is fully reliable with no issues

BOne node is down, which may affect reliability if not fixed

CAll nodes are down, cluster is unreliable

DThe cluster has no data replication

Step-by-Step Solution

Solution:

Step 1: Analyze the command output
Three nodes are live, but one node is dead, indicating a failure.
Step 2: Understand impact on reliability
A dead node can reduce reliability if data is not replicated or the issue is not resolved.
Final Answer:
One node is down, which may affect reliability if not fixed -> Option B
Quick Check:
Dead node = potential reliability risk [OK]

Quick Trick: Dead nodes reduce cluster reliability until fixed [OK]

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Given the command output below, what does it indicate about the cluster's reliability?