Hi all,
I posted this on the novice mailing list and as yet had no response, hopefully someone here can help.
While we where trying to do a vacuum / pg_dump we encountered the following error:
postgres@db:~$ pg_dumpall -d > dump.pg
pg_dump: dumpClasses(): SQL command failed
pg_dump: Error message from server: ERROR: invalid page header in block
9022921 of relation "gap"
pg_dump: The command was: FETCH 100 FROM _pg_dump_cursor
pg_dumpall: pg_dump failed on database "monashprotein", exiting
Now after doing some searches I managed to work out that the data corruption starts at 902292.137
using this sql:
SELECT * FROM gap WHERE ctid = '(902292,$x)'
Where $x I changed from 1-150.
as mentioned on this post:
http://archives.postgresql.org/pgsql-general/2005-11/msg01148.php Following this post it seems all we need to do is re-zero from this point on. However we're not sure which file to do this in.
I've worked out the database/relation files are
$PGDATA/37958/111685332.* with the max * being 101.
Any help locating which file we need to do the re-zero thing would be really appreciated.
Cheers
Noel