On Aug 9, 2019, at 3:45 PM, Aki Tuomi <aki.tuomi@open-xchange.com> wrote:
On 09/08/2019 22:16 Coy Hile via dovecot <dovecot@dovecot.org> wrote:
Hi all,
In an earlier thread, https://dovecot.org/pipermail/dovecot/2019-August/116694.html I got a lot of useful help about migration. On my older host, everything was static; on the newer host, I’m storing user information in Postgres. usernames are of the form <login@REALM>, say ‘hile@coyhile.com’ as basically a Kerberos principal, and authentication and individual lookups work.
My
userstable looks thus:mail=> \d users Table "public.users" Column | Type | Modifiers ----------+------+----------- username | text | not null domain | text | not null password | text | not null
mail=>
and contains, as an example:
username | domain | password------------------+-------------+------------------------------------------------------------------------------------------------------- hile@coyhile.com | coyhile.com | [REDACTED] (1 row)
Naively, I’d expect something this to work for the iteration query:
iterate_query = SELECT username, domain FROM users
But, when I do that, I end up
doveadm backup -D -A -R -f ssh -i id_rsa.dsync imap01.coyhile.com /opt/local/bin/doveadm dsync-server -A doveadm(hile@coyhile.com@coyhile.com): Info: User no longer exists, skipping [root@81716ec5-bca4-6d53-ed81-bd1a55d46b4f /tmp]#
Note the extra “@coyhile.com” in there.
Thanks,
— Coy Hile coy.hile@coyhile.com
If your username field already contains domain, you do not need to return domain field separately. It is only needed if your username field only contains local part.
That’s what I thought, and a simpler query returns the data I expect:
mail=> select username from users; username
hile@coyhile.com (1 row)
mail=>
Or SELECT username AS user FROM users; (if the iterate query is the column to be named user?) When I configure the iterate_query to be SELET username AS user FROM users; I get this:
doveadm backup -D -A -R -f ssh -i id_rsa.dsync imap01.coyhile.com /opt/local/bin/doveadm dsync-server -A Error: User listing returned failure doveadm: Error: Failed to iterate through some users dsync-local(hile@coyhile.com)<xktwERnPTV3dfwEAxHAMlw>: Error: read(remote) failed: EOF (version not received)
Which brings up two questions: (1) Is there a way to get more useful debugging information than “failed to iterate through some users”? (FWIW there’s nothing relevant in syslog.) (2) Is there a way to isolate and exercise just that particular bit so that I know I’m giving it what it expects?
The SQL documentation https://wiki.dovecot.org/AuthDatabase/SQL indicates that
iterate_query = SELECT username AS user FROM users
should return what it wants.
— Coy Hile coy.hile@coyhile.com