On 10/19/2010 09:14 PM, Guillaume Lelarge wrote:
Also, if I remove the host=localhost from pgadmin connection
configuration (leaving host blank), I can backup any DB without errors.
From pgAdmin, I suppose?
Yes, from the servers left click a server, pick properties, and remove
all text from Host portion.
I am using ubuntu 10.04, apt installed postgresql 8.4.5, apt installed
pgAdmin, version: 1.10.2 rev 8217.
pgAdmin cannot give the password to pg_dump without using the
environment variable (PGPASSWORD)... but it means the password will
appear in the ps output. That won't happen. The only workaround
available is to use a .pgpass file. Which pgAdmin would have created if
you allowed it to store the password.
The point is there is no postgresql password for the user. A little more
about why the problem happens:
Pgadmin allows me to connect without any password to server when I have
host=localhost in server configuration. If I try to connect from command
line with psql:
psql -h localhost -p 5432 -d xxx -U yyy
I get password prompt. If I do not specify -h and -p I will not get
password prompt, and if I issue
psql -h 127.0.0.1 -p 5432 -d xxx -U yyy
I will not get password prompt. resolveip localhost gives me:
IP address of localhost is 127.0.0.1
IP address of localhost is 127.0.0.1
(yes, two lines)
So when connecting to localhost from pgadmin I do not need password.
When pgadmin issues the dump command, it uses -h localhost -p 5432, and
thus pg_dump requires a password. I can fix this with leaving the host
blank in server configuration. If I have 127.0.0.1 as host, for some
reason, pgadmin requires me to supply a password. This is opposite to
what psql does.
Anyway, the bug is that I can connect without password when
host=localhost, but pgadmin hangs when trying to backup, because
"pg_dump -h localhost ..." requires a password.
- Anssi
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