For the cache, see http://www.elasticsearch.org/guide/en/elasticsearch/reference/1.x/index-modules-fielddata.html
By default, the field cache size is unbounded, and does not expire. For sort, it means that each field to sort is examined, all values of the field are loaded, so the in-memory sorting can take place. It's exactly the same what Lucene is executing. With the default settings of the field cache, sort is working alright (unless the field values will exceed the available memory) Maybe you can set up an example of your sort as a demo, so that the error can be reproduced? Jörg -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CAKdsXoF4zOnB5TJddf3EZTgGtDqXSBzJAHpZAPo8biUE35wGQg%40mail.gmail.com. For more options, visit https://groups.google.com/groups/opt_out.
