[GitHub] [incubator-pinot] mcvsubbu commented on issue #5627: Query-level priority and control

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

mcvsubbu commented on issue #5627:
URL: https://github.com/apache/incubator-pinot/issues/5627#issuecomment-657731387


   Using off-heap (mmap) memory for query processing may be a good first step to take. This will be at the cost of performance, so it may need to be configurable. The max memory used for processing query can then be indicated to the broker in the response back from the server.
   
   The brokers can, over time, tune themselves so that they can either ask servers to limit the number of threads used, and/or limit the memory used or even reject the query up front if there is no capacity.


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