You've mentioned transactions when doing operations on multiple shards. How do you synchronize multiple transactions, especially on different hosts? Which one to commit first? What if the 2nd transaction fails - the first one is already committed?
again, thanks for posting the slides!
You've mentioned transactions when doing operations on multiple shards. How do you synchronize multiple transactions, especially on different hosts? Which one to commit first? What if the 2nd transaction fails - the first one is already committed?
ReplyDeleteagain, thanks for posting the slides!
ReplyDelete