• MapReduce Service

  1. Help Center
  2. MapReduce Service
  3. User Guide
  4. Overview
  5. Functions
  6. Loader


Loader is a data migration component developed based on Apache Sqoop. It quickens and simplifies data migration between Hadoop and structured, semi-structured, and unstructured data sources. Loader can both import and export data into and out of MRS clusters.

Loader provides the following features:

  • Uses a high-available service architecture.
  • Supports data migration using a client.
  • Manages data migration jobs.
  • Supports data processing during migration.
  • Runs migration jobs using MapReduce components.

For details about the Loader architecture and principles, see http://sqoop.apache.org/docs/1.99.7/index.html.