Preparing Clusters for Log Compaction

Describes how to prepare your environment so you can use log compaction.

Installing with the MapR Installer

When you use the MapR Installer to install MapR Event Store For Apache Kafka, a local gateway is also locally installed so that log compaction can be implemented. To configure for log compaction, see maprcli stream create and stream edit.

Installing without the MapR Installer

Other sections of the documentation describe the detailed steps for installing and configuring without the MapR installer. Generally, you need to perform the following steps:

  1. Install the MapR software.To install MapR without using the MapR installer, follow the steps outlined at Installing without the MapR Installer.
  2. Install the MapR gateway on your local cluster. Since gateways for log compaction are installed on the local cluster, no configuration is needed. See Gateways and Stream Replication for general information about gateways.

Adding Gateways for Load Balancing

Since the number of gateways impacts the compaction process, you might want to increase the number of gateways on the cluster to improve the load distribution. To add gateways for log compaction, you install additional MapR gateways on your local cluster. See Gateways and Stream Replication for general information about gateways.
Note: No configuration is required because the additional gateways are installed on the local clusster.

For More Information