"fburg...@radiantblue.com" <fburg...@radiantblue.com> wrote:
> We have a Postgres database that was recently upgraded from 8.4.3 > to 9.1.6. We have noticed unusual growth in the data files and > generated a script to perform the following actions. > 1. Query pg_class for all records > 2. Generate a file listing of all postgres data files > 3. Compare the two lists and eliminate all files that are > contained within pg_class > > There are 17359 data files. After running the script, there are > 5802 data files remaining that are not listed in pg_class. Due > to the size of the (5802) data files (~4TB), I am not comfortable > about deleting them from the file system. Does postgres 9.1.6 > catalog every data file in pg_class? Or does it leave some data > files off of this table? If so, how can I determine if I have > stale, unnecessary data files on my file system? Yeah, it's good to be cautious -- deleting a needed file can render your database cluster unusable. Be sure you have a good backup you can go back to if you delete the wrong thing. What directories are you looking in? For a database or tablespace directory, are you excluding all files which start with a filename you derived from pg_class and has a dot or underscore followed by more characters? -- Kevin Grittner EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
