noon
Hi all,
I would like to set a short connection timeout (only some seconds) when using libvirt in
my Python program instead of the long default one.
I found the C function: virEventAddTimeoutFunc() in the C libvirt API here:
http://libvirt.org/html/libvirt-libvirt.html#virEventAddTimeoutFunc
and eventInvokeTimeoutCallback(timer, callback, opaque) in libvirt.py around the line#150
but I do not know how to use it. I did not find any example on the net.
I tried this but I get a segmentation fault: :-(
import libvirt
def timeout_cb_d():
print 'Timeout !'
try:
# try to set the libvirt timeout to 2 seconds:
t = libvirt.eventInvokeTimeoutCallback(2, timeout_cb_d, "from dom0_class")
except:
...
Does anyone can give me a working example please?
Antoine Coetsier
12:06 p.m.
New subject: [libvirt-users] Turn off AHCI? bad sectors?
I'm getting the 7b bluescreen when trying to bring up an imaged XP system
for recovery.
Looks like possible cause is AHCI on VM if missing from original hardware,
or visa versa.
Or moving to sata hard drive from pata... which shouldn't be applicable
here.
Also during an earlier recovery attempt I ran gparted from an ubuntu live
CD on the VM/disk image. It gave me a Warning bad sector message.... the
disk image is a qcow image. How can it have a bad sector?
Thanks all!
David.
12:23 p.m.
2011/5/12 Antoine COETSIER <acoetsier(a)veepee.com>:
Hi all,
I would like to set a short connection timeout (only some seconds) when
using libvirt in my Python program instead of the long default one.
What do you mean by connection timeout? The time libvirt waits before
reporting an connection attempt (as in calling libvirt.open()) as
error? I'm not sure it that value is configurable?
Can you be more specific? For example what connection URI do you use
in libvirt.open() as the timeout handling will probably be transport
specific.
I found the C function: virEventAddTimeoutFunc() in the C libvirt API
here:
http://libvirt.org/html/libvirt-libvirt.html#virEventAddTimeoutFunc
and eventInvokeTimeoutCallback(timer, callback, opaque) in libvirt.py around
the line#150 but I do not know how to use it. I did not find any example on
the net.
I tried this but I get a segmentation fault: :-(
import libvirt
def timeout_cb_d():
print 'Timeout !'
try:
# try to set the libvirt timeout to 2 seconds:
t = libvirt.eventInvokeTimeoutCallback(2, timeout_cb_d, "from
dom0_class")
except:
...
Does anyone can give me a working example please?
eventInvokeTimeoutCallback has nothing to do with a connection
timeout. This function is related to the event handling.
eventInvokeTimeoutCallback is there since 2008 and on a quick look it
seems like dead code that should be removed as I can't find any caller
for it.
Matthias
7:55 a.m.
Hello,
We have developped our own cloud manager for 2 years now and have been using libvirt to
deploy and monitor xen domains with 2 daemons written in Python.
As the number of domains increased and when one of them is down, it can ruin our
monitoring capability, the daemon getting stuck with the defect connection.
Antoine Coetsier
-----Message d'origine-----
De : Matthias Bolte [mailto:matthias.bolte@googlemail.com]
Envoyé : jeudi 12 mai 2011 19:23
À : Antoine COETSIER
Cc : libvirt-users(a)redhat.com; Julien MOREAU
Objet : Re: [libvirt-users] libvirt connection timeout
2011/5/12 Antoine COETSIER <acoetsier(a)veepee.com>:
Hi all,
I would like to set a short connection timeout (only some seconds) when
using libvirt in my Python program instead of the long default one.
What do you mean by connection timeout? The time libvirt waits before
reporting an connection attempt (as in calling libvirt.open()) as
error? I'm not sure it that value is configurable?
Can you be more specific? For example what connection URI do you use
in libvirt.open() as the timeout handling will probably be transport
specific.
I found the C function: virEventAddTimeoutFunc() in the C libvirt API
here:
http://libvirt.org/html/libvirt-libvirt.html#virEventAddTimeoutFunc
and eventInvokeTimeoutCallback(timer, callback, opaque) in libvirt.py around
the line#150 but I do not know how to use it. I did not find any example on
the net.
I tried this but I get a segmentation fault: :-(
import libvirt
def timeout_cb_d():
print 'Timeout !'
try:
# try to set the libvirt timeout to 2 seconds:
t = libvirt.eventInvokeTimeoutCallback(2, timeout_cb_d, "from
dom0_class")
except:
...
Does anyone can give me a working example please?
eventInvokeTimeoutCallback has nothing to do with a connection
timeout. This function is related to the event handling.
eventInvokeTimeoutCallback is there since 2008 and on a quick look it
seems like dead code that should be removed as I can't find any caller
for it.
Matthias
4820
days inactive
4824
days old
3 comments
3 participants
participants (3)
-
Antoine COETSIER -
David Ehle -
Matthias Bolte