Re: [HACKERS] Speedup twophase transactions

On Fri, Dec 16, 2016 at 02:00:46PM +0300, Stas Kelvich wrote:
> 
> > On 27 Sep 2016, at 03:30, Michael Paquier <michael.paquier@gmail.com> wrote:
> > 
> > OK. I am marking this patch as returned with feedback then. Looking
> > forward to seeing the next investigations.. At least this review has
> > taught us one thing or two.
> 
> So, here is brand new implementation of the same thing.
> 
> Now instead of creating pgproc entry for prepared transaction during recovery,
> I just store recptr/xid correspondence in separate 2L-list and deleting entries in that
> list if redo process faced commit/abort. In case of checkpoint or end of recovery
> transactions remaining in that list are dumped to files in pg_twophase.
> 
> Seems that current approach is way more simpler and patch has two times less
> LOCs then previous one.

Uh, did you mean to attached patch here?

--  Bruce Momjian  <bruce@momjian.us>        http://momjian.us EnterpriseDB
http://enterprisedb.com

+ As you are, so once was I.  As I am, so you will be. +
+                      Ancient Roman grave inscription +