jiajunwang commented on issue #323: [HELIX-817] Support for multiple instance 
group tags for Job config
URL: https://github.com/apache/helix/issues/323#issuecomment-505100927
 
 
   What's the difference between using multiple instance group tags and
   defining a new tag that includes the desired scope?
   The second solution is supported right now and maybe easier to use.
   
   Best Regards,
   Jiajun
   
   
   On Mon, Jun 24, 2019 at 10:10 AM Hunter Lee <notificati...@github.com>
   wrote:
   
   > Currently we can set only one instance group tag for a job.
   >
   > jobCfg.setInstanceGroupTag("INSTANCEGROUPTAG");
   >
   > It will be really helpful to support support multiple instance group tags
   > for one job so that the job can be run either in group A or group B.
   > Through this, we can support more advanced scheduling use cases like in
   > Node Affinity in Kubernetes [1]
   >
   > [1] https://kubernetes.io/docs/concepts/configuration/assign-pod-node/
   >
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