Thanks for your answer. I understand why it was difficult to find a doc on this subject.
Also by curiosity; I'm trying to analyse performance on an elastic cluster.
I tried recently to increase the number of nodes without proving that it will be better.
Sometime the system hangs; on slow insert, I found some simple query with several seconds to insert.
On search, there are a lot of search around 500ms wich is not too good too and I wondering about the original query
Well, you know, an administrator is not a developer.
When I was an Oracle DBA, I was first analysing slow queries and AFTER asking why it was developed like that.
I read that this log is now written in json format.
On the other hand, a basic "insert" can take more than 6s so there is something else to investigate.
thanks
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