Past Meetup

PWL #15.5: Scalable Atomic Visibility with RAMP Transactions

This Meetup is past

30 people went

Location image of event venue


[Hi fellow paper lovers! We're starting to build up a decent backlog of topics, I've heard from a couple interested people who have trouble making the usual Thursday timeslot, so I figured it might be fun to try a second event in January on a different night of the week to spread the love around. For the moment I'm only committing to one, but if it's a hit maybe we'll turn it into a regular thing. Let me know your feelings on the subject, if you have them!]

Denis Rystsov will present "Scalable Atomic Visibility with RAMP Transactions" by Peter Bailis, Alan Fekete, Ali Ghodsi, Joseph M. Hellerstein and Ion Stoica.

It's a fresh paper of last year (2014) where authors propose a new isolation model — Read Atomic (RA) isolation — that helps to achieve incredible scalability in multi-partition distributed databases.

Read Atomic isolation is similar to Read Committed isolation, and provides atomic visibility: either all or none of each transaction’s updates are observed by other transactions. Bailis and friends describe algorithms for Read Atomic MultiPartition (RAMP) transactions that enforce atomic visibility while offering excellent scalability, guaranteed commit despite partial failures (via synchronization independence), and minimized communication between servers (via partition independence).

We'll discuss RAMP transactions, its limitations and the way to handle the lost update problem.

Thanks to the lovely folks at Thomas Street ( ) for hosting this one!