Took me a second to grok this but pretty clever: compute an arbitrary trailing window of a CRDT in fixed space/time: https://github.com/aaw/hyperloglog-redis/blob/master/lib/time_series_counter.rb …
@evanphx yes, but that's problematic too. You can usually avoid that by being satisfied with approximate (bounded error) answers.
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@avibryant Do you just use window on the data? Truncate the old data without looking to bound? -
@evanphx I'm thinking more of stuff like using a HyperLogLog counter on unique transaction ids, vs. directly incrementing a txn counter.
End of conversation
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