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!
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2 comments:
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!
Post a Comment