Re: 9.2 to 9.5 pg_upgrade losing data - Mailing list pgsql-general

On Mon, Aug 15, 2016 at 12:18:04PM -0700, Adrian Klaver wrote:
> https://www.postgresql.org/docs/9.5/static/pgupgrade.html
>
> "Obviously, no one should be accessing the clusters during the upgrade.
> pg_upgrade defaults to running servers on port 50432 to avoid unintended
> client connections. You can use the same port number for both clusters when
> doing an upgrade because the old and new clusters will not be running at the
> same time. However, when checking an old running server, the old and new
> port numbers must be different."
>
> In your OP you do not show overriding pg_upgrade defaults for ports, so
> assuming the scripts are looking for the live ports and not the upgrade
> ports that should not be an issue.

Agreed.  I have no idea what would cause this, and have never heard a
report like this before.

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

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