3 ms·
So he has 1000 devices at 20 locations, but the cardinality is now 1000*20??? Why, is each device reporting from all 20 locations?? What type of math is that?
by ramraj07 5y ago
So he has 1000 devices at 20 locations, but the cardinality is now 1000*20??? Why, is each device reporting from all 20 locations?? What type of math is that?
- reilly3000 5y agoTime-series databases are optimized for performance based on having an index for each label/type of value. That inversion allows for a tremendous amount of values to be captured and reported against with low latency, but with the trade off of having less permutations available for scale. The same applies to Prometheus, Graphite, etc.
- user5994461 5y agoHe meant to say he has 20 000 devices total, 1000 devices in each of 20 locations. It's not out of the ordinary if you have different industrial facilities to instrument.