3 ms·
The Procella[1] paper took a different approach to experiments. They embedded an experiment ID array in table rows and indexed the rows by experiment ID with a
by sa46 7y ago
The Procella[1] paper took a different approach to experiments. They embedded an experiment ID array in table rows and indexed the rows by experiment ID with a postings list.
Replex looks really neat. I've only skimmed the Acolyer summary so far. What's the difference between a replex and multiple projections of data with different partitions and sort-orders used in C-store and Vertica?
[1]: http://www.vldb.org/pvldb/vol12/p2022-chattopadhyay.pdf http://www.vldb.org/pvldb/vol12/p2022-chattopadhyay.pdf
- gopalv 7y ago> What's the difference between a replex and multiple projections of data with different partitions and sort-orders used in C-store and Vertica? The 3-replicas for failure tolerance are reused, so that the first 3 ordering projections don't add storage costs to the system. Also the paper doesn't mention it, but the rebuild traffic is also better distributed on failure if the failure of a replica causes a rebuild that draws from a wider set of machines rather than a single one.