On Mon, Sep 22, 2014 at 3:00 AM, Tim Penhey <tim.pen...@canonical.com> wrote:
> There is one that I talked with Kapil about this morning. > > When a user connects over the client api, we record the last login time. > Currently this uses a transaction, but doesn't need to. In fact using a > transaction here takes an order of magnitude longer, and wakes up > watchers when it doesn't need to (because of a new transaction). > > This is certainly something that is worthwhile looking at, and > determining a pattern for. > > Tim > > I hesitate to start getting into a pattern of not using transactions because we think we don't need one for this particular operation right now. Because stuff that didn't used to need one will likely evolve and then not have one when really it should. While we could certainly do a pass, and evaluate for each thing we are doing whether it is necessary, are we stable enough that this isn't just premature optimization? John =:->
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