An administrator runs yarn logs -applicationId app_001 but receives an error stating the application ID is invalid. What is a probable cause?

medium📝 Debug Q7 of 15

Hadoop - Cluster Administration

An administrator runs yarn logs -applicationId app_001 but receives an error stating the application ID is invalid. What is a probable cause?

AThe application ID format is incorrect or the application has finished and logs are unavailable

BThe YARN ResourceManager service is not running

CThe command requires root privileges to access logs

DThe logs directory is corrupted

Step-by-Step Solution

Solution:

Step 1: Validate application ID format
YARN application IDs follow a specific pattern; an incorrect format causes errors.
Step 2: Consider application state
If the application finished long ago, logs might be cleaned up or unavailable.
Final Answer:
The application ID format is incorrect or the application has finished and logs are unavailable -> Option A
Quick Check:
Verify app ID format and log retention [OK]

Quick Trick: Check app ID format and log availability [OK]

Common Mistakes:

Master "Cluster Administration" in Hadoop

9 interactive learning modes - each teaches the same concept differently

Want More Practice?

15+ quiz questions · All difficulty levels · Free

More Hadoop Quizzes