Pavan, * Pavan Deolasee (pavan.deola...@gmail.com) wrote: > On Mon, Sep 22, 2014 at 6:50 PM, Stephen Frost <sfr...@snowman.net> wrote: > > I agree that it looks like there may be a race condition there- but > > could you provide the test cases you're working with? What kind of > > behavior is it that's making it show up easily for you? > > > Nothing special really. Set up a 2-node sync replication on my Mac laptop > and running pgbench with 10 clients triggers it. As I said, after looking > at the code and realising that there is a race condition, I tried with with > gdb to reproduce the race I suspect.
Well, that's a bit concerning.
> Anyways, the attached patch should trigger the race condition for a simple
> query. I'm deliberately making backend to wait to give walsender a chance
> to send outstanding WALs and then making walsender to wait so that
> assertion is triggered in the backend.
Great, thanks, I'll try and look into this tomorrow.
Stephen
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