[GitHub] [accumulo] ddanielr commented on issue #3211: OnDemand Tables: Determine how OnDemand tablets are brought online

["ddanielr (via GitHub)" <gi...@apache.org>]

ddanielr commented on issue #3211:
URL: https://github.com/apache/accumulo/issues/3211#issuecomment-1457409313

   I started looking through [#37](https://github.com/dlmarion/accumulo/pull/37) and I had a functional/process question. 
   
   If all tablets are "offline" by default, then an accumulo cluster will exist with a higher number of tablets then the amount of tserver resources could fully host.  
   
   With that in mind, I have a couple questions
   1. Is there a mechanism to alert on approaching resource limits or evaluate the cluster's current size/use before marking a tablet as onDemand? 
   2. Given the possibility of a limited resource footprint,  what mechanism is going to be used for scheduling the tablet hosting?
   3. What determines hosting priority of onDemand tables? should this exist? should it be a per-client setting or perhaps per table? 
   4. Are "resources unavailable for hosting" an error condition that can be handled for onDemand tables? 
   5. Is there a possibility of scheduling deadlock situations? 


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