Druid: Event-Driven Data with Eric Tschetter
Data Archives - Software Engineering Daily
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Do You Have a Data Management System?
The very first version of druid was written in joba. It's now effectively files that get memory mapped in, and then native, native memory access is used to access the data in those there's also stuff where we do decompression on the fly, compression and decompression in order to shrink the data. But the very, very first version was basically interras longrays, floata rays, sitting there on the j v m heap, loaded up,. an and answering queries so meaning you're doing memory management in the j vm.
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