You try to access Cloudera Manager UI at http://cloudera-manager:7180 but get a connection refused error. What is the most likely cause?

medium📝 Troubleshoot Q14 of 15

Hadoop - Cluster Administration

You try to access Cloudera Manager UI at http://cloudera-manager:7180 but get a connection refused error. What is the most likely cause?

ACloudera Manager server is not running

BYou used the wrong port number

CThe Hadoop cluster is down

DYour browser does not support HTTPS

Step-by-Step Solution

Solution:

Step 1: Understand connection refused error
This error means no service is listening on the target port.
Step 2: Check common causes
If Cloudera Manager is down, port 7180 won't respond. The port is correct and browser HTTPS support is unrelated.
Final Answer:
Cloudera Manager server is not running -> Option A
Quick Check:
Connection refused = service down [OK]

Quick Trick: Connection refused usually means service is stopped [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