Router config:Hot/Cold tier

How this helps and what are the steps to implement for Druid 0.12.3?

Can we use filers for storing cold tier indexes?



Data storage into different tiers (_default or other) is determined defined by co-ordinator retention policy for the given data source.

Once data goes to respective tiers, you can configure multiple brokers accessing cold or hot exclusively by using property

You can configure applications to use either of these brokers so that they are separated if required.

Please lookup druid configuration for more information.