What's New in Apache Kafka
This topic lists new features for Apache Kafka in this release of Cloudera Runtime.
Rebase on Kafka 2.5.0
Kafka shipped with this version of Cloudera Runtime is based on Apache Kafka 2.5.0. For more information, see Apache Kafka Notable Changes for version 2.5.0, as well as the Apache Kafka Release Notes for version 2.5.0 in the upstream documentation.
Default Value Changes
The default values of a number of Kafka configuration properties are updated. The following
table contains the updated properties as well as new and old default values:
| Display Name | Property Name | Old Default | New Default |
|---|---|---|---|
| Kafka Connect rest port | kafka.connect.rest.port |
38083 | 28083 |
| Kafka Connect secure rest port | kafka.connect.secure.rest.port |
38085 | 28085 |
| Jetty Metrics port to expose JMX Json | metrics.jetty.server.port |
38084 | 28084 |
| ZooKeeper Session Timeout | zookeeper.session.timeout.ms |
6000 ms | 18000 ms |
| Allowed Replica Time Lag | replica.lag.time.max.ms |
10000 ms | 30000 ms |
