Preparing for data migration
Before you start the data migration from CDH 5.x or HDP 2.x to CDP, you must understand the requirements and complete certain tasks on CDH/HDP and CDP to ensure a successful migration.
- If you are migrating from CDH, configure Ranger ACLs in CDP corresponding to the HBase ACLs in your existing CDH cluster.
If you are migrating from HDP perform the following steps:
Configure Ranger ACLs in CDP corresponding to the HBase or Ranger ACLs
in your existing HDP cluster.
For more information, see Configure a resource-based service: HBase.
Migrate your applications to use the new HBase-Spark connector because
the Spark-HBase connector that you were using in CDH or HDP is no longer
supported in CDP.
For more information, see Using the HBase-Spark connector.
- Configure Ranger ACLs in CDP corresponding to the HBase or Ranger ACLs in your existing HDP cluster.
Review the deprecated APIs and incompatibilities for HBase, if any, when migrating from
HDP 2.x or CDH 5.x to CDP.
For more information, see Deprecation Notices for Apache HBase.
Ensure that all data has been migrated to a supported encoding type before the
For more information, see Remove PREFIX_TREE Data Block Encoding.
Ensure that you upgrade any external co-processors manually because they are
not automatically upgraded during migration. You need to ensure that your
co-processors classes are compatible with CDP.
For more information, see Check co-processor classes.