pg_upgrade question - Mailing list pgsql-general

From Lu, Dan
Subject pg_upgrade question
Date
Msg-id MN2PR19MB3613CC6B528CC555B46FDD9894C00@MN2PR19MB3613.namprd19.prod.outlook.com
Whole thread Raw
Responses Re: pg_upgrade question
List pgsql-general

Hi PostgreSQL Admin,

 

I am trying to find out if there is any step by step instruction to reconcile old data dir and upgraded data dir after using “—link” option to do an upgrade.

 

I ran this to do an upgrade from 11.5 to 12.1: pg_upgrade -d /hostname/pg/dev115/data -D /hostname/pg/dev121upg/data --link -b /pgdbadevbal800/pg/PostgreSQL-11.5/bin -B /pgdbadevbal800/pg/PostgreSQL-12.1/bin -p 1432 -P 2432 –v

 

postgresdbad:dev115:pgdbadevbal800:> pwd

/hostname/pg

 

postgresdbad:dev115:pgdbadevbal800:> du -sh dev121upg

2.3G    dev121upg

 

postgresdbad:dev115:pgdbadevbal800:> du -sh dev115

22G     dev115

 

My goal is to be able to do an in place upgrade from 11.5 to 12.1 using the same data dir “/hostname/pg/dev115/data”.  Without the “—link” option I need to double up the space usage for the instance.  What is the easiest way to accomplish this task?

 

Thanks so much for your help.


Dan




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