[libvirt-users] duplicated notifications for suspend and resume

[Naud, AntoineX]

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
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