Hi Jörg,

Thanks for the comments. If I understand you correctly, you're saying that if I 
use SMILE and/or CBOR, the communication/storage won't be compressed using LZF?

- Drew


On May 29, 2014, at 2:52 PM, [email protected] wrote:

> 1. No (the cluster state of ES - not part of Lucene -  is saved to disk in 
> SMILE format)
> 
> 2. No.
> 
> 3. Yes, you can use SMILE on XContentBuilder classes. The result can 
> transported to the cluster, the decoding of SMILE is done transparently.
> 
> Because the transport is LZF compressed by default, you should consider if 
> disabling it for SMILE is worth it. SMILE is a compressed JSON technique but 
> I don't have numbers if there is any advantage about plain JSON with LZF 
> compressed (I doubt that SMILE is better)
> 
> Also note, there is CBOR in latest ES releases, which seems superior to SMILE 
> in many aspects (compactness, speed, standardization in RFC 7049)
> 
> https://github.com/elasticsearch/elasticsearch/pull/5509
> 
> Jörg
> 
> 
> 
> On Thu, May 29, 2014 at 7:07 AM, Drew Kutcharian <[email protected]> wrote:
> Hey Guys,
> 
> I wanted to get some clarification on how Elasticsearch handles/uses Smile 
> binary JSON. Mainly:
> 
> 1. Does ES convert JSON to Smile before saving into Lucene?
> 
> 2. Does ES use Smile as the wire protocol for the Java Client?
> 
> 3. If I wanted to have everything in Smile format (What's stored in Lucene, 
> fieldata, and the communication between server and client) how should I do 
> it? Should I just set the "source" to Smile byte array using the Java Client?
> 
> Note that I use the Java Client and don't really use the REST API, except for 
> debugging.
> 
> Best,
> 
> Drew
> 
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