vvivekiyer commented on PR #11710:
URL: https://github.com/apache/pinot/pull/11710#issuecomment-1741230828

   > How will a user determine what the threshold should be? 
   
   @ege-st 
   Good question. We did think about this. The ideal answer is that the value 
is use case dependent.
   However, a safe starting point is to set the threshold limit to max direct 
memory size  - this value is conservative to not break existing queries and at 
the same time, it reduces the probability of brokering OOMing. For the usecase 
that we saw in our production environment, this value works. 
   Also note that this setting is disabled by default in this PR. It can be 
enabled on a case-by-case basis. 


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