gianm commented on issue #6743: IncrementalIndex generally overestimates theta sketch size URL: https://github.com/apache/incubator-druid/issues/6743#issuecomment-451258341 > Do you know if there's a way to use this functionality to track per-query memory usage? That would be ideal, since we don't want excessive memory use by one query to affect another unrelated query. I suppose we could ask each aggregation operator to track its own 'extra' memory usage and report it to the query engine when asked. That sounds pretty easy. Which would just leave how we configure the maximum. I guess it'd be a new config, possibly defaulting to some percentage of the processing buffer size?
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