Allow to configure field data to use node level cache, which can then be bounded based on size and/or expiration.

In order to configure field data to use node level cache across all indices, simply put index.fielddata.cache to node in the configuration.

Node level configuration allows to set:

• indices.fielddata.cache.size: the size in bytes or percentage of heap. Defaults to 40%.
• indices.fielddata.cache.expire: expiration, defaults to not set.

Note, even though size based eviction sounds attractive, the effort of loading field data is very expensive, so its better to have enough nodes in the cluster to work with the default resident field data cache type.

Last, the default is still resident.