Hi Wayne,

On Wednesday, 19 October 2016 18:34:20 UTC+2, Wayne wrote:
>
> What is strange about it is that the "Stream" rules apparently work with 
> the field "log_message", but a search query does not work. 
>

What does that mean exactly? Do you have some examples? 


The custom mapping is useful if the data type is not the default string 
> type. However, the log_message field is still string type. So it may not 
> make much difference if I set up custom mapping for this field?
>

No, you can also make Elasticsearch analyze fields which wouldn't be 
analyzed otherwise. By default, only the message, full_message, and source 
fields are being analyzed.

See 
https://www.elastic.co/guide/en/elasticsearch/reference/2.4/analysis-analyzers.html
 
for details.


Cheers,
Jochen

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