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In Cloudera Manager, which service metric helps you monitor the health of the YARN ResourceManager?

easy📝 Conceptual Q2 of 15
Hadoop - Cluster Administration
In Cloudera Manager, which service metric helps you monitor the health of the YARN ResourceManager?
AResourceManager RPC Queue Size
BHDFS DataNode Disk Usage
CNode Manager CPU Usage
DHive Query Latency
Step-by-Step Solution
Solution:

  1. Step 1: Identify YARN ResourceManager metric

    ResourceManager RPC Queue Size indicates the load and responsiveness of the ResourceManager.

  2. Step 2: Eliminate unrelated metrics

    Node Manager CPU is for NodeManager, HDFS DataNode Disk is for storage, Hive Query Latency is unrelated to ResourceManager health.

  3. Final Answer:

    ResourceManager RPC Queue Size -> Option A

  4. Quick Check:

    YARN ResourceManager health = RPC Queue Size [OK]
Quick Trick: Check ResourceManager RPC Queue Size for YARN health [OK]
Common Mistakes:
  • Mixing NodeManager and ResourceManager metrics
  • Using Hive metrics for YARN health

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