Re: [PG_UPGRADE] 9.6 to 10.5

On Fri, Aug 10, 2018 at 06:42:40PM +0200, Michael Paquier wrote:
> On Fri, Aug 10, 2018 at 12:12:45PM -0400, Bruce Momjian wrote:
> > There is new code in PG 10.5 thta detects that the server is cleanly
> > shut down.  You can no longer use '-m immediate' to shut down either
> > server, but 'smart' and 'fast' should be fine.  Can you run
> > pg_controldata on each cluster before you run pg_upgrade to verify that
> > they say "Shutdown":
> 
> You are talking about 244142d, right?  I see this code bit:
> +   if (strcmp(p, "shut down\n") != 0)
> +   {
> +       if (cluster == &old_cluster)
> +           pg_fatal("The source cluster was not shut down cleanly.\n");
> +       else
> +           pg_fatal("The target cluster was not shut down cleanly.\n");
> +   }
> 
> This seems incorrect for me in the case of standbys, as pg_controldata
> reports in this case "shut down in recovery", and one can run pg_upgrade
> on a standby as well, no?

Oh, good point. I had not tested that.  I can develop a patch to handle
this.  Was that the case in this upgrade report?

-- 
  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 +