oliverdding opened a new issue #11421:
URL: https://github.com/apache/druid/issues/11421


   ### Description
   
   As you can see, druid's helm chart was migrated from 
[incubator](https://github.com/helm/charts/tree/master/incubator/druid) which 
has been deprecated since Nov 13, 2020, and migration is not down yet, making 
it not easy to use.
   
   ### Motivation
   
   1. Remove licence comment at the beginning of k8s yaml file, which makes 
helm not deployable. [reference](https://stackoverflow.com/a/63383447/13760009).
   2. Remove sub-charts. Helm chart offered by official should include minimal 
dependency, and others should be tailored by user themself.
   3. Remove some configs of process. Example: 
`druid.processing.numMergeBuffers`. It's default value is `max(2, 
druid.processing.numThreads / 4)`, which is calculated in the code if user does 
not offer it, but in this chart it is given, which forces user to give a 
specific value.
   4. Move `druid.segmentCache.locations` default value to the mounted path.
   
   I would like to commit my fix to it, if permitted.


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