8:13 a.m.
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On 16 Sep 2016, at 15:05, Gianluca Cecchi
<gianluca.cecchi(a)gmail.com> =
wrote:
=20
On Fri, Sep 16, 2016 at 2:50 PM, Michal Skrivanek =
<michal.skrivanek(a)redhat.com
<mailto:michal.skrivanek@redhat.com>> =
wrote:
=20
no, that=E2=80=99s not how HA works today. When you log into a guest =
and issue
=E2=80=9Cshutdown=E2=80=9D we do not restart the VM under your =
hands. We can argue how it should or may work, but this is the defined =
behavior since the dawn of oVirt.
=20
>=20
> =E2=80=8BAFAIK that's correct, we need to be able =E2=80=8B=E2=80=8Bshu=
tdown HA VM=E2=80=8B=E2=80=8B=E2=80=8B without being it immediately =
restarted on different host. We want to restart HA VM only if host, =
where HA VM is running, is non-responsive.
=20
we try to restart it in all other cases other than user initiated =
shutdown, e.g.
a QEMU process crash on an otherwise-healthy host
=20
=20
Hi, just another question in case HA is not configured at all.
by =E2=80=9CHA configured=E2=80=9D I expect you=E2=80=99re referring to =
the =E2=80=9CHighly Available=E2=80=9D checkbox in Edit VM dialog.
If I run the "shutdown -h now" command on an host where
some VMs are =
running, what is the expected behavior?
Clean VM shutdown (with or without timeout in case it doesn't =
complete?) or crash of their related QEMU processes?
expectation is that you won=E2=80=99t do that. That=E2=80=99s why there =
is the Maintenance host state.
But if you do that regardless, with VMs running, all the processes will =
be terminated in a regular system way, i.e. all QEMU processes get =
SIGTERM. =46rom the perspective of each guest this is not a clean =
shutdown and it would just get killed=20
Thanks,
michal
=20
Thanks,
Gianluca
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<html><head><meta http-equiv=3D"Content-Type"
content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><br class=3D""><div><blockquote
type=3D"cite" class=3D""><div =
class=3D"">On 16 Sep 2016, at 15:05, Gianluca Cecchi <<a =
href=3D"mailto:gianluca.cecchi@gmail.com" =
class=3D"">gianluca.cecchi(a)gmail.com</a>&gt;
wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div
dir=3D"ltr" =
class=3D""><div class=3D"gmail_extra"><div
class=3D"gmail_quote">On Fri, =
Sep 16, 2016 at 2:50 PM, Michal Skrivanek <span dir=3D"ltr" =
class=3D""><<a
href=3D"mailto:michal.skrivanek@redhat.com" =
target=3D"_blank"
class=3D"">michal.skrivanek(a)redhat.com</a>&gt;</span> =
wrote:<br class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0 =
0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div =
style=3D"word-wrap:break-word" class=3D""><div
class=3D""><span =
class=3D""><div class=3D""><br
class=3D""></div></span>no, that=E2=80=99s =
not how HA works today. When you log into a guest and issue =
=E2=80=9Cshutdown=E2=80=9D we do not restart the VM under your hands. We =
can argue how it should or may work, but this is the defined behavior =
since the dawn of oVirt.</div><div class=3D""><span
class=3D""><br =
class=3D""><blockquote type=3D"cite"
class=3D""><div class=3D""><div =
dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote"><div class=3D""><br
class=3D""><div =
style=3D"font-family:arial,helvetica,sans-serif;display:inline" =
class=3D"">=E2=80=8BAFAIK that's correct, we need to be able =
=E2=80=8B</div><div =
style=3D"font-family:arial,helvetica,sans-serif;display:inline" =
class=3D"">=E2=80=8Bshutdown HA VM=E2=80=8B</div>=E2=80=8B<div =
style=3D"font-family:arial,helvetica,sans-serif;display:inline" =
class=3D"">=E2=80=8B without being it immediately restarted on different =
host. We want to restart HA VM only if host, where HA VM is running, is =
non-responsive.<br =
class=3D""></div></div></div></div></div></div></blockquote><div
=
class=3D""><br class=3D""></div></span>we try to
restart it in all other =
cases other than user initiated shutdown, e.g. a QEMU process crash on =
an otherwise-healthy host</div><div class=3D""><div
class=3D"h5"><div =
class=3D""><br
class=3D""></div></div></div></div></blockquote></div><br
=
class=3D""></div><div class=3D"gmail_extra">Hi, just
another question in =
case HA is not configured at
all.</div></div></div></blockquote><div><br =
class=3D""></div>by =E2=80=9CHA configured=E2=80=9D I expect
you=E2=80=99r=
e referring to the =E2=80=9CHighly Available=E2=80=9D checkbox in Edit =
VM dialog.</div><div><br class=3D""><blockquote
type=3D"cite" =
class=3D""><div class=3D""><div dir=3D"ltr"
class=3D""><div =
class=3D"gmail_extra">If I run the "shutdown -h now" command on an
host =
where some VMs are running, what is the expected behavior?</div><div =
class=3D"gmail_extra">Clean VM shutdown (with or without timeout in case =
it doesn't complete?) or crash of their related QEMU =
processes?</div></div></div></blockquote><div><br =
class=3D""></div>expectation is that you won=E2=80=99t do that.
That=E2=80=
=99s why there is the Maintenance host state.</div><div>But if you do =
that regardless, with VMs running, all the processes will be terminated =
in a regular system way, i.e. all QEMU processes get SIGTERM. =46rom the =
perspective of each guest this is not a clean shutdown and it would just =
get killed </div><div><br =
class=3D""></div><div>Thanks,</div><div>michal<br
class=3D""><blockquote =
type=3D"cite" class=3D""><div class=3D""><div
dir=3D"ltr" class=3D""><div =
class=3D"gmail_extra"><br class=3D""></div><div =
class=3D"gmail_extra">Thanks,</div><div =
class=3D"gmail_extra">Gianluca</div></div>
_______________________________________________<br class=3D"">Users =
mailing list<br class=3D""><a href=3D"mailto:Users@ovirt.org"
=
class=3D"">Users(a)ovirt.org</a><br =
class=3D"">http://lists.ovirt.org/mailman/listinfo/users<br =
class=3D""></div></blockquote></div><br
class=3D""></body></html>=
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