Hadoop - Cluster Administration
What will be the output status of a service in Ambari if the health check shows all components running but one DataNode is down?
What will be the output status of a service in Ambari if the health check shows all components running but one DataNode is down?
medium📝 Command Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand Ambari service health colors
GREEN means all components healthy, YELLOW means some warnings or partial issues, RED means critical failure.Step 2: Analyze scenario
One DataNode down causes a warning but not full failure, so status is YELLOW.Final Answer:
YELLOW -> Option CQuick Check:
Partial issue = YELLOW status [OK]
Quick Trick: Partial issues show YELLOW status in Ambari [OK]
Common Mistakes:
- Assuming RED for one node down
- Confusing UNKNOWN with warnings
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