Re: pg_upgrade hangs

On Wed, Aug 13, 2014 at 06:20:38PM -0400, John Scalia wrote:
> Hi all,
>
> My QA folks are doing an upgrade test, migrating a database from 9.2.2 to 9.3.3. By default on CentOS, the databases
liveat: 
>
> /var/lib/pgsql/9.2/data & /var/lib/pgsql/9.3/data
>
> But, they've decided to move these to /data/postgres-9.2/data and
> /data/postgres-9.3/data and use symlinks back to the original
> locations, so they don't have to modify the /etc/init.d scripts.
> Now, pg_upgrade is just hangs regardless of whether I use the actual
> physical locations or the symlinked ones. I haven't yet tried
> attaching "strace" to the process, but is there any reason to
> believe that the symlinks might be causing the problem? Or do I need
> to look at something else?

I have no idea.  I have never heard of that, but I suggest you figure
out why the hang is happening independent of pg_upgrade.

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

  + Everyone has their own god. +