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Re: [Linux-cluster] postgres cluster with RHEL5



On Feb 1, 2008 10:30 AM, Terry <td3201 gmail com> wrote:
> On Feb 1, 2008 10:09 AM, Lon Hohberger <lhh redhat com> wrote:
> > On Thu, 2008-01-31 at 23:10 -0600, Terry wrote:
> >
> > >            <service autostart="1" domain="failover00" exclusive="0"
> > > name="database" recovery="relocate">
> > >                         <postgres-8 ref="dssystem2">
> > >                                 <fs ref="db00"/>
> > >                                 <ip ref="192.168.100.207"/>
> > >                         </postgres-8>
> > >                 </service>
> >
> > That's not going to work; the dependencies are backwards (assuming
> > postgresql is trying to use the fs and ip).  Try:
> >
> >     <service autostart="1" domain="failover00" exclusive="0"
> >              name="database" recovery="relocate">
> >         <fs ref="db00"/>
> >         <ip ref="192.168.100.207"/>
> >         <postgres-8 ref="dssystem2"/>
> >     </service>
> >
> > -- Lon
>
> I spoke incorrectly.  The shared storage is an iSCSI volume with ext3.
>  NFS is another cluster service.  Sorry.
>

Thanks for all of your replies.  I think I have a catch 22 situation.
Here is my (corrected) config:
                <resources>
                        <ip address="192.168.100.206" monitor_link="1"/>
                        <fs device="/dev/sdc1" force_fsck="0"
force_unmount="1" fsid="42585" fstype="ext3" mountpoint="/db00"
name="db00" self_fence="1"/>
                        <postgres-8
config_file="/var/lib/pgsql/data/postgresql.conf" name="dssystem"
postmaster_user="postgres" shutdown_wait="0"/>
                </resources>
                <service autostart="1" domain="failover00"
exclusive="0" name="database" recovery="relocate">
                        <fs ref="db00"/>
                        <ip ref="192.168.100.207"/>
                        <postgres-8 ref="dssystem"/>
                </service>


Here is a listing of /db00:
[root nfs00a ~]# ls /db00/
backups  data  pgstartup.log
[root nfs00a ~]# ls /db00/data/
base    lost+found  pg_hba.conf    pg_log        pg_subtrans
pg_twophase  pg_xlog          postmaster.opts
global  pg_clog     pg_ident.conf  pg_multixact  pg_tblspc
PG_VERSION   postgresql.conf

You can see that my postgres config lives on this iscsi volume which
needs to be mounted as part of the database service.  When I attempt
to start the database service, it acts like it starts, there are no
logs but it doesn't start, nor does the /db00 volume get mounted.
What am I missing?  I want to stay as close to standard as possible
with regards to postgres and directory locations so I created a
symlink:
lrwxrwxrwx 1 root root 5 Feb  1 12:32 /var/lib/pgsql -> /db00

I hope this paints a better picture of what I am doing and ultimately,
where I am failing.

Thanks all!


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