Github user dszeto commented on the issue:
https://github.com/apache/incubator-predictionio/pull/370
Thanks @marevol ! Do you know if the REST client allows configuration by
file? For the old ES1 client, one could supply an `elasticsearch.yml` file for
the client to read in the rest of the configuration. I took a look at the REST
client documentation and could not see something equivalent.
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