I'm setting up bucardo for the first time. We have an existing database,
and I'm setting up a slave to become another master. I've written a
fairly detailed shell script to perform the steps programmatically for
consistency in deployment. There are only three databases in play here.
After the one-time-copy, I issue the following boilerplate query to see
the sizes of the db's (cadged from the 'net):
SELECT d.datname AS Name, pg_catalog.pg_get_userbyid(d.datdba) AS Owner,
CASE WHEN pg_catalog.has_database_privilege(d.datname, 'CONNECT')
THEN
pg_catalog.pg_size_pretty(pg_catalog.pg_database_size(d.datname))
ELSE 'No Access'
END AS Size
FROM pg_catalog.pg_database d
ORDER BY
CASE WHEN pg_catalog.has_database_privilege(d.datname, 'CONNECT')
THEN pg_catalog.pg_database_size(d.datname)
ELSE NULL
END DESC -- nulls first
LIMIT 20;
When I run it on the existing master, I get the following:
name | owner | size
--------------------------+----------+---------
db-1 | postgres | 696 MB
db-2 | postgres | 244 MB
db-3 | postgres | 44 MB
bucardo | bucardo | 7174 kB
postgres | postgres | 5510 kB
template1 | postgres | 5510 kB
template0 | postgres | 5408 kB
(7 rows)
When I run it on the server that has received the one-time-copy, I get this:
name | owner | size
--------------------------+----------+---------
db-1 | postgres | 723 MB
db-2 | postgres | 325 MB
db-3 | postgres | 32 MB
bucardo | bucardo | 6694 kB
postgres | postgres | 5518 kB
template1 | postgres | 5510 kB
template0 | postgres | 5408 kB
(7 rows)
I'm by no means a postgresql dba, I'm merely the SA trying to get this
working. But I'm puzzled as to how the receiving databases would be
*larger* than the source. Am I missing something very basic here, or is
there a problem?
--
Paul Theodoropoulos
www.anastrophe.com
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