[This is the old, single node version for Elasticsearch 2.x, see the latest "Siren Federate" plugin for distributed Elasticsearch 5.x and 6.x capabilities]
The filter join cache is currently caching the results of a terms by query action on the coordinating node. It is particularly useful when executing msearch requests, as it will cache the results of a terms by query action and reuse them across multiple queries.
At the moment, its size and expiration policy is hardcoded. We should provide a rest action to change its parameters.
The filter join cache is currently caching the results of a terms by query action on the coordinating node. It is particularly useful when executing msearch requests, as it will cache the results of a terms by query action and reuse them across multiple queries. At the moment, its size and expiration policy is hardcoded. We should provide a rest action to change its parameters.