You run the command hdfs dfsadmin -createEncryptionZone -keyName unknownkey -path /data but get an error. What is the most likely cause?

medium📝 Debug Q14 of 15

Hadoop - Security

You run the command hdfs dfsadmin -createEncryptionZone -keyName unknownkey -path /data but get an error. What is the most likely cause?

AThe encryption zone path /data does not exist

BThe command syntax is incorrect

CThe key 'unknownkey' has not been created in the Key Management Server

DEncryption zones cannot be created on /data directory

Step-by-Step Solution

Solution:

Step 1: Check prerequisites for creating encryption zones
An encryption zone requires a valid key that must be created beforehand in the Key Management Server.
Step 2: Identify cause of error
The error likely occurs because 'unknownkey' does not exist, so the zone cannot be created with a missing key.
Final Answer:
The key 'unknownkey' has not been created in the Key Management Server -> Option C
Quick Check:
Missing key causes encryption zone creation error [OK]

Quick Trick: Keys must exist before creating encryption zones [OK]

Common Mistakes:

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