Re: Postgresql using lxd faild to find address

On Mon, Oct 10, 2016 at 11:25 AM, Scottix <scottix(at)gmail(dot)com> wrote:

> Hi I am using postgresql 9.5 in lxd container on Ubuntu. Using the stock
> 64bit 16.04 ubuntu image. Postgres is working just fine within the
> container, but when I try to assign the ip address associated to the
> container it fails to recognize it at boot. When I restart postgresql it
> recognizes it just fine. So it seems like it is not getting the ip address,
> maybe it is a little bit slower. Anyway to delay the boot time?
>
> Steps to reproduce:
> 1. Setup lxd container
> 2. Install postgresql-9.5
> 3. Configure ip address in the config
> 4. restart container
>
> Symptoms:
> 1. postgresql running fine
> 2. No ip address assigned to postgresql
>
> Logs:
> 2016-10-10 14:40:33 UTC [143-1] LOG: could not bind IPv4 socket: Cannot
> assign requested address
> 2016-10-10 14:40:33 UTC [143-2] HINT: Is another postmaster already
> running on port 5432? If not, wait a few seconds and retry.
> 2016-10-10 14:40:33 UTC [143-3] WARNING: could not create listen socket
> for "10.0.3.51"
>

Set your listen_addresses='*'
This means, any and all available IP addresses. If you hardcode the IP
in the config, you'll get this type of error. This way, no matter what
interfaces you have, you'll get a bind. The downside is that it will
listen on ALL network interfaces you have in the box. Sometimes you
explicitly don't want a certain interface to be listening. You can fix
this with a firewall or pg_hba.conf however.

--Scott

> 2016-10-10 14:40:33 UTC [144-1] LOG: database system was shut down at
> 2016-10-07 23:05:34 UTC
> 2016-10-10 14:40:33 UTC [144-2] LOG: MultiXact member wraparound
> protections are now enabled
> 2016-10-10 14:40:33 UTC [143-4] LOG: database system is ready to accept
> connections
> 2016-10-10 14:40:33 UTC [148-1] LOG: autovacuum launcher started
>
> #systemctl restart postgresql
>
> 2016-10-10 15:17:33 UTC [2353-1] LOG: database system was shut down at
> 2016-10-10 15:17:32 UTC
> 2016-10-10 15:17:33 UTC [2353-2] LOG: MultiXact member wraparound
> protections are now enabled
> 2016-10-10 15:17:33 UTC [2352-1] LOG: database system is ready to accept
> connections
> 2016-10-10 15:17:33 UTC [2357-1] LOG: autovacuum launcher started
>
> Thanks
>
>
>
>

--
--
Scott Mead
Sr. Architect
*OpenSCG <http://openscg.com>*
http://openscg.com