On Wed, Jun 17, 2015 at 12:50:42PM +0200, Dietmar Maurer wrote:
> > As far as I can tell set_drbdsetup_props() looks okay. The problem is that
> > we
> > are not able to reproduce your problem. In a drbdmanage environment[1]
> > everything looks fine, both nodes are able to switch the resource to primary
> > (tested with 'drbdadm primary' on both sides)...
> >
> > Is it reproducible? Even if you start from scratch (drbdmanage unit)?
>
> Yes, I can reproduce it reliable. But I use 3-nodes ($redundance=3)
>
> I can get it working by introducing a sleep(5) after auto_deploy:
>
> --------------
> my ($rc, $res) = $hdl->create_resource($name, {});
> check_drbd_rc($rc->[0]);
>
> ($rc, $res) = $hdl->create_volume($name, $size, {});
> check_drbd_rc($rc->[0]);
>
> my $redundancy = get_redundancy($scfg);;
>
> ($rc, $res) = $hdl->auto_deploy($name, $redundancy, 0, 0);
> check_drbd_rc($rc->[0]);
>
> sleep(5); # else we get split brain?!
>
> ($rc, $res) = $hdl->set_drbdsetup_props(
> {
> target => "resource",
> resource => $name,
> type => 'neto',
> 'allow-two-primaries' => 'yes',
> });
> check_drbd_rc($rc->[0]);
> --------------------
Please try to swap the "deploy" and "set options" steps:
--------------------
($rc, $res) = $hdl->set_drbdsetup_props(
{
target => "resource",
resource => $name,
type => 'neto',
'allow-two-primaries' => 'yes',
});
($rc, $res) = $hdl->auto_deploy($name, $redundancy, 0, 0);
--------------------
Regards, rck
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