Re: pg_upgrade from V9.3.3 to V9.4.0 - Mailing list pgsql-admin

On Sat, Jan 10, 2015 at 3:57 AM, John Scalia <jayknowsunix@gmail.com> wrote:

Hi all,

While we're not planning to migrate to the new version, I'm trying to gain some experience as the streaming replication has really changed in this version and indicates future directions for it. My environment is virtualized CentO/S 6.5, and this particular server is the current primary, not a standby. My problem is that the pg_upgrade is just hanging - for over an hour, before I killed it. I only see a "Verifying Cluster" message, and that's it. Even the 3 logs written by pg_upgrade, don't really tell me any more. Am I trying to go too far with this upgrade? Do I need to bring it V9.3.4 first, or what? The behavior just seems a bit odd. I've only run this prior going from 9.2.2 to 9.3.3 and that had no issues.
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Jay



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Hi John Scalia,

I have tried pg_upgrade from 9.3.3 to 9.4.0 and i have done with the following procedure which will solve your problem.

Create .pgpass file in users home directory ~/.pgpass and add both server with their respective user & password

Now Shut down 9.3.3 & 9.4.0 cluster

Now when ever you run pg_upgrade utility the present working directory (pwd) should have write access of the current user e.g postgres

First just check if clusters are Clusters are compatible with using -c options

Example:

/opt/PostgreSQL/9.4/bin/pg_upgrade -c -v -d /tmp/PostgreSQL/9.3.3/data/ -D /tmp/PostgreSQL/9.4.0/data/ -b /opt/PostgreSQL/9.3.3/bin/ -B /opt/PostgreSQL/9.4/bin/ -p 5888 -P 5999 -U postgres

If Result says Clusters are compatible then remove -c and start upgrading

Example:

/opt/PostgreSQL/9.4/bin/pg_upgrade -v -d /tmp/PostgreSQL/9.3.3/data/ -D /tmp/PostgreSQL/9.4.0/data/ -b /opt/PostgreSQL/9.3.3/bin/ -B /opt/PostgreSQL/9.4/bin/ -p 5888 -P 5999 -U postgres

If Result says Upgrade Complete then your upgrade is completed successfully.

I am also attaching the one file for reference.

Hope this will resolve your problem.

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Thanks & Regards,
Harshad Adalkonda
Database Administrator

http://www.shreeyansh.com