Hortonworks Docs » Data Lifecycle Manager 1.2.0 » DLM Administration

DLM Administration

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Introduction
- Purpose and scope
- Audience and assumptions
Replication concepts
UI overview
Preparing to setup replication policy
- Roles required
Cloud credentials
- Register cloud credentials
Data replication use cases
- Replication of data using HDFS
- Replication of data using Hive
Metadata replication
Replication policy operations
Cloud credentials operations
Miscellaneous
- Update Cluster Endpoint
Failing Over Manually
- Make the destination cluster the new source
  - Remove the Ranger deny policy
- Activate a new destination cluster
DLM policy parameters
DLM version Information
Tuning DLM Engine
Troubleshooting DLM

Metadata replication

This page provides information about various types of metadata replication.

Ranger metadata
When a DLM replication job is run, data, metadata, and any Ranger policies that are associated with the replicated data are automatically exported to the target.
Atlas metadata
Atlas plugin within DLM is used to replicate Atlas metadata. It uses incremental export to move data across clusters, thereby optimizing the payload for speed and size.
Snapshot replication between HDP clusters
You can optionally enable HDFS snapshots for replication in Data Lifecycle Manager. Understanding how snapshots work, and some of the benefits and costs involved, can help you to decide whether or not to enable snapshot replication.

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