[GitHub] [druid] maytasm opened a new issue #9890: Introduce Load rules validation

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

maytasm opened a new issue #9890:
URL: https://github.com/apache/druid/issues/9890


   ### Description
   
   When a Load rules is submitted, Druid will perform validation and reject the new rules if it fails the validation. The validation will check if a drop interval for a particular rule is cover in subsequent load rule interval. If this is found, then the validation fails and the new rule is rejected (or maybe a warning requiring another acknowledgment to confirm in the UI). 
   
   ### Motivation
   
   Human operator can make mistake when setting load/drpo rules. This features aims to make mistake less costly if they do happen by catching and alerting the user. For example, a rule set like:
   `[
     {
       "period": "P6M",
       "includeFuture": true,
       "tieredReplicants": {
         "_default_tier": 2
       },
       "type": "loadByPeriod"
     },
     {
       "type": "dropForever"
     },
     {
       "period": "P1Y",
       "includeFuture": true,
       "tieredReplicants": {
         "_default_tier": 1
       },
       "type": "loadByPeriod"
     }
   ]`
   does not make sense as the third rule (loadByPeriod rule for P1Y) will never be reached (since the second rule is a dropForever). This feature aims to detect mistake such as this. 


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