Below are guidance and configuration options known to this module.

Use tool shipped with Druid to install this extension on broker, historical and middle manager nodes.

1. to enable cache on broker nodes, follow to set related properties
2. to enable cache on historical nodes, follow historical caching docs to set related properties
3. to enable cache on middle manager nodes, follow to set related properties
4. add the following properties

To utilize a redis cluster, following properties must be set.

Note: some redis cloud service providers provide redis cluster service via a redis proxy, for these clusters, please follow the Standalone mode configuration below.

Example

Note: if both druid.cache.cluster.nodes and druid.cache.host are provided, cluster mode is preferred.

Except for the properties above, there are some extra properties which can be customized to meet different needs.

In addition to the normal cache metrics, the redis cache implementation also reports the following in both total and delta