Hadoop - Cluster Administration
Which Hadoop feature helps in creating point-in-time copies of data for backup?
Which Hadoop feature helps in creating point-in-time copies of data for backup?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify backup-related Hadoop features
HDFS Snapshots allow creating point-in-time copies of data.Step 2: Eliminate unrelated features
MapReduce, YARN, and Streaming are for processing, not backup.Final Answer:
HDFS Snapshots -> Option DQuick Check:
Backup feature = HDFS Snapshots [OK]
Quick Trick: Snapshots capture data state at a moment for backup [OK]
Common Mistakes:
- Confusing MapReduce with backup
- Thinking YARN manages backups
- Assuming Streaming creates backups
Master "Cluster Administration" in Hadoop
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