Hello,

 

I am using domain event notifications from libvirt-event API in my application and it seems to work fine, except for ‘suspend’ and ‘resume’ events where I keep receiving duplicated notifications.

 

Similarly, the example provided with libvirt (in examples/object-events/event-test) also produces twice as much notifications for ‘suspend’ and ‘resume’ than for other events. Here is the sequence of virsh commands and the output of event-test:

 

Virsh start Fed25

Virsh suspend Fed25

Virsh resume Fed25

Virsh shutdown Fed25

 

[~/libvirt-3.4.0/examples/object-events] ./event-test qemu:///system

Registering event callbacks

myNodeDeviceEventCallback EVENT: Node device net_vnet0_fe_54_00_a0_ba_61 Created 0

myDomainEventCallback1 EVENT: Domain Fed25(1) Resumed Unpaused

myDomainEventCallback2 EVENT: Domain Fed25(1) Resumed Unpaused

myDomainEventCallback1 EVENT: Domain Fed25(1) Started Booted

myDomainEventCallback2 EVENT: Domain Fed25(1) Started Booted

myDomainEventCallback1 EVENT: Domain Fed25(1) Suspended Paused

myDomainEventCallback2 EVENT: Domain Fed25(1) Suspended Paused

myDomainEventCallback1 EVENT: Domain Fed25(1) Suspended Paused

myDomainEventCallback2 EVENT: Domain Fed25(1) Suspended Paused

myDomainEventCallback1 EVENT: Domain Fed25(1) Resumed Unpaused

myDomainEventCallback2 EVENT: Domain Fed25(1) Resumed Unpaused

myDomainEventCallback1 EVENT: Domain Fed25(1) Resumed Unpaused

myDomainEventCallback2 EVENT: Domain Fed25(1) Resumed Unpaused

myDomainEventCallback1 EVENT: Domain Fed25(1) Shutdown Finished

myDomainEventCallback2 EVENT: Domain Fed25(1) Shutdown Finished

myNodeDeviceEventCallback EVENT: Node device net_vnet0_fe_54_00_a0_ba_61 Deleted 0

 

Note that the 2 lines printed for each event are ok since 2 callbacks are registered in the example.

 

Has anybody else faced this issue?

 

I am using libvirt-3.6.0 on Ubuntu 16.04.

 

Best regards,

Antoine