Backup HDP Cluster

Cloudera recommends that you back up the HDP 2.6.5.x services managed by Ambari 2.6.x.x.

note

These backups are required and helps you incase in the middle of the upgrade to HDP 7.1.x you decide to downgrade the cluster back to original state.

Backup and Restore Databases
The steps for backing up and restoring databases differ depending on the database vendor and version that you select for your cluster. It is beyond the scope of this document.
Backup Ranger
You must stop the Ranger Admin and Ranger KMS Service and its dependent services.
Backup Atlas
You can back up Atlas data by backing-up HBase tables.
Backup Ambari Infra Solr
Back up all your ambari infra solr collections. Run the Solr APIs to backup the collections individually. You must create the backup directory on each Ambari Infra Solr node. However, the backup command takes the backup of shards only on the nodes where they reside.
Backup Hive
To backup the Hive service, you must backup the Hive database and create a snapshot of the Hive warehouse.
Backup HBase
The rollback procedure rolls back HDFS and, the data in HBase is also rolled back automatically as part of this procedure. In addition, HBase metadata stored in ZooKeeper is recovered as part of the ZooKeeper rollback procedure.
Backup Kafka
Before you begin the upgrade process, you need to explicitly set the Kafka protocol version to match what's being used currently among the brokers and clients. Update server.properties on all brokers as follows:
Backup Oozie
To backup the Oozie service, you must backup the Oozie database.
Backup Knox
With the backup and rollback of Ambari, Knox is also backed up and rolled back by default.
Backup Logsearch
With the backup of Ambari-Infra, Logsearch is also backed up by default.
Backup Zeppelin
With the backup and rollback of HDFS, Zeppelin is also backed up and rolled back by default.
Backup HDFS
You can roll back an upgrade from CDP Private Cloud Base 7 to HDP 2. The rollback restores your HDP cluster to the state it was in before the upgrade. This means any change that happened after taking the backups as instructed from points 4 to 7 will be reverted from the HDFS cluster. You must perform additional steps before upgrading your HDP cluster if you have configured the NameNode HA.
Backup ZooKeeper
You must backup Zookeeper.
Backup Ambari
You must backup Ambari.

Parent topic: Upgrading HDP to Cloudera Runtime 7.1.x