In FusionInsight HD, where can I view the running results of the MapReduce application?

Question

Options

• AFusionInsight Manager web interface
• BLoader web interface
• CSolr web interface
• DYarn web interface

• A
  11% (3)
• B
  4% (1)
• C
  7% (2)
• D
  79% (22)

Explanation

YARN is the resource management layer in Hadoop responsible for scheduling and executing MapReduce jobs, so the YARN web interface (ResourceManager UI) is the correct place to monitor running application status, logs, progress, and results in FusionInsight HD.

Why the distractors are wrong:

• A (FusionInsight Manager) is the cluster administration console - used for monitoring cluster health, managing services, and configuration, not for viewing individual application execution results.
• B (Loader) is a data ingestion tool (similar to Sqoop) for importing/exporting data between HDFS and external sources - unrelated to MapReduce job monitoring.
• C (Solr) is a search platform component - it handles full-text indexing and search queries, with no role in MapReduce execution.

Memory tip: Think YARN = Your Application Runs Now - it's the layer that owns application execution, so any question about "where does a job run or what is its status" points to YARN.

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