What's new

HBase replication policy enhancements

Replicate data through an network load balancer (NLB)

During the HBase replication policy creation process, you can choose to specify an NLB if the source CDH 5.16.2 cluster uses the NLB to communicate with ZooKeeper and RegionServers of the destination Cloudera Manager of COD clusters.

Specify the NLB details after you enable the Select Destination > Replicate via a Network Load Balancer option during the HBase replication policy creation process.

For more information, see Support matrix for CDP Replication Manager and Creating HBase replication policies.

Specify maximum number of tables to process in parallel

You can specify the maximum number of tables to process in parallel during the initial snapshot export and import step during an HBase replication policy run. You specify the number of tables using the Initial Snapshot Settings > Maximum parallel snapshots option during the HBase replication policy creation process. If you do not enter any value, Replication Manager chooses an appropriate value, depending on the resources in the source and target cluster, to optimize the performance.

For more information, see Support matrix for CDP Replication Manager and Creating HBase replication policies.

Register GCP credentials

You can add the GCP credentials on the CDP Public Cloud Replication Manager > Cloud Credentials page to use in Replication Manager.

For more information, see Registering GCS credentials to use in Replication Manager.

HBase replication policy enhancements

HBase replication policies support the following enhancements:

• You can create multiple HBase replication policies between multiple clusters to replicate HBase data.

  For more information, see Replicate HBase data simultaneously between multiple clusters.

• You can choose to Replicate all user tables or Replicate only tables where replication is already enabled after you choose the Select Source > Replicate Database option during the HBase replication policy creation process.

  The Replicate only tables where replication is already enabled option is supported only if the target cluster uses Cloudera Manager version 7.12.0.0 and higher, 7.11.0-h3 and higher, or 7.9.0-h7 and higher.

  For more information, see Methods to replicate HBase data and Creating HBase replication policies.

• You can enter a YARN Queue Name to submit the replication job during the HBase replication policy creation or choose to retain the "default" value.

  For more information, see Creating HBase replication policies.

• You can click Actions on the Replication Policies page to Collect diagnostic bundle for the required HBase replication policy.

  For more information, see Monitor HBase replication policy job details.

For more information about feature support in CDP Public Cloud Replication Manager, see Supported features.

Replicate HBase tables in a database depending on the replication scope

During the HBase replication policy creation process, after you select the Select Source > Replicate Database, you can choose the Select Source > Replicate all user tables option to replicate all the HBase tables in the database, or choose the Select Source > Replicate only tables where replication is already enabled option to replicate the tables for which the replication scope is already set to 1. This provides a choice to replicate the required tables in a database.

The Replicate only tables where replication is already enabled option is supported only if the target cluster CDP version is CDP version 7.2.16.500 using Cloudera Manager 7.9.0-h7 or higher versions, CDP version 7.2.17.300 using Cloudera Manager 7.11.0-h3 or higher versions, or CDP version 7.2.18 using Cloudera Manager 7.12.0.0.

For more information, see Methods to replicate HBase data and Creating HBase replication policies.

Replicate HBase data between multiple clusters simultaneously

Starting from CDP Public Cloud version 7.2.16.500, 7.2.17.200, and 7.2.18 you can create multiple HBase replication policies between multiple clusters to replicate HBase data.

For more information, see Replicate HBase data simultaneously between multiple clusters.