Hadoop - Modern Data Architecture with Hadoop
You want to migrate a large Hadoop dataset to a cloud-native platform but want to minimize downtime. Which approach is best?
You want to migrate a large Hadoop dataset to a cloud-native platform but want to minimize downtime. Which approach is best?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand downtime minimization in migration
Minimizing downtime requires continuous syncing rather than one-time full copy.Step 2: Identify best tool for incremental replication
DistCp supports incremental copying of Hadoop data to cloud storage, enabling near-zero downtime migration.Final Answer:
Use incremental data replication with tools like DistCp to sync data continuously -> Option AQuick Check:
Incremental sync = less downtime [OK]
Quick Trick: Incremental sync tools reduce downtime [OK]
Common Mistakes:
- Doing one-time full copy causing long downtime
- Using manual FTP uploads for big data
- Avoiding migration by running locally
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