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Latest revisions

# Date Author Comment
fcbf3d43 12/11/2014 01:07 pm Dimitris Aragiorgis

ifdown: Introduce helper methods

Until now Ganeti upon TAP creation, a NIC file was created
under $RUNDIR/kvm-hypervisor/nic/<instance_name>/<nic_index>

Since NICs have obtained a UUID, we are going to create another
file named after its UUID. This will be needed during ifdown...
e3e51401 12/11/2014 01:07 pm Dimitris Aragiorgis

ifdown: Change kvm-if* scripts

  • Rename kvm-vif-bridge to kvm-ifup-custom
  • Search if /etc/ganeti/kvm-if*-custom is available
    and execute it instead
  • Pass positional argument to custom script

Signed-off-by: Dimitris Aragiorgis <>
9e0ced60 12/11/2014 01:07 pm Dimitris Aragiorgis

ifdown: Add example kvm-ifdown script

This script currently does nothing more that calling user the
user provided one if it exists.

User provided script should be placed under /etc/ganeti/
and named `ganeti-kvm-ifdown`.

Signed-off-by: Dimitris Aragiorgis <>
5fcaa75b 12/11/2014 01:06 pm Dimitris Aragiorgis

(2.13) Fix Xen's NIC file

Xen exports all environment variables to a file so that an
external script (see vif_script hvparam) can source it.
In case of multiple values per variable (e.g. TAGS), we
should use XXX="a b c" instead of XXX=a b c. Fix this.

Signed-off-by: Dimitris Aragiorgis <>...
d9982f38 12/11/2014 12:54 pm Dimitris Aragiorgis

(2.13) kvm: Delegate socket handling to monitor module

Introduce @_ensure_connection decorator that properly handles
the socket connection (i.e. connect, close) and propagates
any exceptions raised in the decorated method.

In general @_ensure_connection wraps external methods....
6155a05d 12/11/2014 12:54 pm Dimitris Aragiorgis

(2.13) kvm: Use vhostfds obtained by OpenTap

During instance startup, if vhost_net is True, OpenTap() opens
/dev/vhost-net device to obtain some fds. These fds were never
used. This patch adds the vhostsfd option to the --netdev option.

Signed-off-by: Dimitris Aragiorgis <>...
e3028ca0 12/11/2014 12:54 pm Dimitris Aragiorgis

(2.13) hotplug: Retry VerifyHotplugCommand up to 5 times

It seems that QMP upon device_del returns without QEMU having
completely removed the device from the PCI bus. This probably has to
do PCI bus hotplug handlers (DeviceState->BusState->hotplug_handler)....
a00069fd 12/11/2014 12:54 pm Dimitris Aragiorgis

(2.13) Update hotplug design doc

..to reflect the transition from HMP to QMP during hotplug
actions.

Signed-off-by: Dimitris Aragiorgis <>
Reviewed-by: Hrvoje Ribicic <>
e31571c1 12/11/2014 12:54 pm Dimitris Aragiorgis

(2.13) qmp: Log qmp commands and responses

Add debug logging for all qmp commands and responses, except for
query-commands, and qmp_capabilities, that are executed upon
initialization of QmpConnection (and their output is not really
useful).

Signed-off-by: Dimitris Aragiorgis <>...
f1306ed7 12/11/2014 12:54 pm Dimitris Aragiorgis

(2.13) hotplug: Is not supported for QEMU < 1.7

Change the bulk check of whether hotplug is supported or not.
Only versions >= 1.7 support the required qmp commands.

Signed-off-by: Dimitris Aragiorgis <>
Reviewed-by: Hrvoje Ribicic <>

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