[GitHub] gianm opened a new pull request #6973: Some adjustments to config examples.

[GitBox <gi...@apache.org>]

gianm opened a new pull request #6973: Some adjustments to config examples.
URL: https://github.com/apache/incubator-druid/pull/6973
 
 
   - Add ExitOnOutOfMemoryError to jvm.config examples. It was added a
   pretty long time ago (8u92) and is helpful since it prevents zombie
   processes from hanging around. (OOMEs tend to bork things)
   - Disable Broker caching and enable it on Historicals in example
   configs. This config tends to scale better since it enables the
   Historicals to merge results rather than sending everything by-segment
   to the Broker. Also switch to "caffeine" cache from "local".
   - Increase concurrency a bit for Broker example config.
   - Enable SQL on the Broker in the example config, a baby step towards
   making SQL more of a thing. (It's still off by default in the code.)
   - Reduce memory use a bit for the quickstart configs.
   - Add example Router configs, in case someone wants to use that. One
   reason might be to get the fancy new console (#6923).

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