Zunway

Add Memcached Auto-discovery support

2

#### Is your feature request related to a problem? Please describe. Memcached Auto-discovery is using to auto discovery Memcached cluster node in some cloud provider. It automatically adapt to the...

[loki-distributed] Add configurable scaling behaviour and KEDA autoscaler

2

[Loki's document](https://grafana.com/docs/loki/latest/operations/autoscaling_queriers/) recommend using KEDA in querier to configure autoscaling based on Prometheus metrics. Also the default scaling behaviour is too frequent for Loki's components. I recommend adding a configurable...