On Mon, 15 Oct 2007, Bruce Momjian wrote:

Seems we didn't have any mention of Slony for upgrades in the migration
section, so I added it:

 <para>
  It is also possible to use <productname>Slony</> to create a slave
  server with the updated version of <productname>PostgreSQL</>.  The
  slave can be on the same computer or a different computer.  Once it
  has synced up with the master server (running the older version of
  <productname>PostgreSQL</>), you can switch masters and make the slave
  the master and shut down the older database instance.  Such a
  switch-over results in only several minutes of downtime for an upgrade.
 </para>

Bruce, do you think we should say several minutes of downtime? It's been my experience that the downtime is usually measurable in seconds. I don't think I've ever had a switchover take more than 1 minute.

Excellent catch and good work by the way!

--
Jeff Frost, Owner       <[EMAIL PROTECTED]>
Frost Consulting, LLC   http://www.frostconsultingllc.com/
Phone: 650-780-7908     FAX: 650-649-1954

---------------------------(end of broadcast)---------------------------
TIP 1: if posting/reading through Usenet, please send an appropriate
      subscribe-nomail command to [EMAIL PROTECTED] so that your
      message can get through to the mailing list cleanly

Reply via email to