Re: race condition in sync rep
| От | Simon Riggs |
|---|---|
| Тема | Re: race condition in sync rep |
| Дата | |
| Msg-id | AANLkTikSMJjrtL0mCDeMHRKz8pcADVXUUhuu1xwx-L12@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: race condition in sync rep (Robert Haas <robertmhaas@gmail.com>) |
| Список | pgsql-hackers |
On Sat, Mar 26, 2011 at 3:00 PM, Robert Haas <robertmhaas@gmail.com> wrote: > On Mar 26, 2011, at 6:16 AM, Simon Riggs <simon@2ndquadrant.com> wrote: >> That seems very unlikely even with fsync=off in a real config where we >> have network path to consider. >> >> Your definition of a "nasty" race condition seems off. >> >> I've added code for you. > > Your skepticism seems out of place. I actually hit this problem in testing. We could debate how realistic my test setupwas, but why? It is not our policy - and bad practice in general - to ship code with race conditions. The code youadded is not "for me"; it's "to fix a race condition". A race that will not be lost with normal and sensible settings and results in a slight performance degradation only in a contrived worse case scenario. There is no question that it caused any other problem. > Thanks for the quick fix. -- Simon Riggs http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
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