Hi, How much space the data takes up on disk in Elasticsearch depends a lot on your mappings. In addition to storing the source in the _source field, all fields are by default also copied over to the _all field to allow free text search across all fields. In addition to this Elasticsearch also indexes all the fields in the source document, sometimes in multiple ways, which also takes up space. The amount of data Elasticsearch need to store can therefore grow quite a bit before compression is applied.
You might be able to reduce the indexed size on disk by ensuring your mappings are as efficient as possible, e.g. by disabling the _all field if you do not need it. Best regards, Christian On Tuesday, April 14, 2015 at 5:47:59 PM UTC+1, ajay....@gmail.com wrote: > > I would like to know if Elasticsearch documents/indices are stored in > compressed format on disk . If yes, what type of compression options are > available and it's performance overheads. > > and if these compression options are configurable. > > Thanks > Ajay > -- 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 elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/fbeafe91-6c20-4e4c-9eff-94d7aa40e381%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
