The ElasticSearchSink checks for the existence of an index template called "
*metrics_template*". If this template does not exist, it is created. This
template ensures that all strings used in metrics are set to not_analyzed
and disables the _all field.
So answers to your questions are *YES*. Please create an index template
named "metrics_template" and allow the system to create index automatically.

- Hao
On Wed, Jan 3, 2018 at 6:58 PM, Lh Reddy, Kesava <
[EMAIL PROTECTED]lid> wrote: