What's New in Streams Replication Manager

Learn about the new features of Streams Replication Manager in Cloudera Runtime 7.1.6.

SRM high availability mode

You can now deploy SRM in high availability mode. For more information, see Enable high availability for Streams Replication Manager.

Replication specific Kafka Connect REST servers

SRM can now run multiple drivers in the same cluster (high availability). To make this possible, the SRM driver role now deploys a Kafka Connect REST server for each replication that you set up and configure. These REST servers ensure communication between the different instances of the driver role and make replication with multiple drivers in a single cluster possible.

If required, you can configure these REST servers in Cloudera Manager with the Streams Replication Manager's Replication Configs property and two specific prefixes. For more information, see Configuring replication specific Kafka Connect REST servers .

The grace and retention period as well as the collection frequency of SRM Service role metrics are configurable

Configuration properties related to the SRM Service role’s metric processing are added. These properties give users the ability to configure the grace and retention periods as well as the collection frequency of SRM Service role metrics.

The grace and retention periods can be configured directly with the following Cloudera Manager properties:

SRM Service Metrics Grace Period (streams.replication.manager.service.streams.metrics.grace)
SRM Service Metrics Retention Period (streams.replication.manager.service.streams.metrics.retention)

Metric collection frequency can be configured through Streams Replication Manager's Replication Configs with the metrics.period property. The metrics.period property can only be configured on a replication level. For example:

primary->secondary.metrics.period=60