Data Protection
Data protection
Backing up HDFS metadata
Introduction to HDFS metadata files and directories
Files and directories
NameNodes
JournalNodes
DataNodes
HDFS commands for metadata files and directories
Configuration properties
Back up HDFS metadata
Prepare to back up the HDFS metadata
Backing up NameNode metadata
Back up HDFS metadata using Cloudera Manager
Restoring NameNode metadata
Restore HDFS metadata from a backup using Cloudera Manager
Perform a backup of the HDFS metadata
Using HDFS snapshots for data protection
Considerations for working with HDFS snapshots
Enable snapshot creation on a directory
Create snapshots on a directory
Recover data from a snapshot
Options to determine differences between contents of snapshots
CLI commands to perform snapshot operations
Managing snapshot policies using Cloudera Manager
Create a snapshot policy
Edit or delete a snapshot policy
Enable and disable snapshot creation using Cloudera Manager
Create snapshots using Cloudera Manager
Delete snapshots using Cloudera Manager
Configuring HDFS trash
Trash behavior with HDFS Transparent Encryption enabled
Enabling and disabling trash
Setting the trash interval