exactly. An update is a delete and create behind the scene.

-- 
David Pilato | Technical Advocate | Elasticsearch.com
@dadoonet | @elasticsearchfr


Le 29 mai 2014 à 17:57:40, Kirill Teplinskiy ([email protected]) a écrit:

Oh, it is interesting.  I really had some suggestions with new payloads and 
some with old!  Thank you for explain!  As I understand, Lucene perform update 
operation as delete old document and create new document?

Your idea with alias looks great.  I think we will use it for the next full 
reindex, thank you again.

On Thursday, May 29, 2014 9:40:36 PM UTC+6, David Pilato wrote:
So it created new segments and at some point expunges deletes but not all.
TBH, I'd prefer using another index with an alias on top of the older one and 
at the end, switch the alias to the new one and delete old index.

--
David ;-)
Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs


Le 29 mai 2014 à 17:29, Kirill Teplinskiy <[email protected]> a écrit :

Yes, exactly.  I update docs in the same index.

On Thursday, May 29, 2014 9:10:40 PM UTC+6, David Pilato wrote:
So you reindex into the same index and not in another clean one?
So you "update" docs, right?

--
David ;-)
Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs


Le 29 mai 2014 à 16:54, Kirill Teplinskiy <[email protected]> a écrit :

Thank you, David!

I need to call _optimize by hands to refresh payloads in completion suggester.  
This method is recommended here: 
http://www.elasticsearch.org/guide/en/elasticsearch/reference/0.90/search-suggesters-completion.html.
  For some reason _suggest returns old payloads after reindexing on our stage 
server.  I don't know why, completion suggester on my local instance of 
ElasticSearch updates on the fly.  Maybe because our stage index is 10Gb size 
and contains 10 millions documents and my local index has only 180 000 
documents. 

On Thursday, May 29, 2014 7:37:24 PM UTC+6, David Pilato wrote:
In 99.9% you should not call optimize api and let elasticsearch/Lucene do it 
for you when needed.

To answer to your question, yes search and index operations will still possible 
during that time.


--
David ;-)
Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs


Le 29 mai 2014 à 14:37, Kirill Teplinskiy <[email protected]> a écrit :

Hello!

Can anyone tell is it safe to call _optimize under normal production work?  
Will search requests be responded and indexing be performed?
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