Re: Hot Standby query cancellation and Streaming Replication integration
Greg Stark <gsstark@mit.edu>
From: Greg Stark <gsstark@mit.edu>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Josh Berkus <josh@agliodbs.com>, pgsql-hackers@postgresql.org
Date: 2010-02-26T21:22:47Z
Lists: pgsql-hackers
On Fri, Feb 26, 2010 at 9:19 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote: > There's *definitely* not going to be enough information in the WAL > stream coming from a master that doesn't think it has HS slaves. > We can't afford to record all that extra stuff in installations for > which it's just useless overhead. BTW, has anyone made any attempt > to measure the performance hit that the patch in its current form is > creating via added WAL entries? What extra entries? -- greg