Comment 2 for bug 1578520

I make a mistake
this bug was fixed at mitaka。。。
before update network info of info-cache，it will refresh it。

> 在 2016年5月19日，02:42，Qijing Li <email address hidden> 写道：
>
> I could not reproduce the bug on my all-in-one single node devstack, I
> guess the tricky part would be how busy is your system, and how quickly
> you attach the ports to the VM.
>
> To attach new ports to VM as soon as possible, I put them into shell file, then ran it.
> nova interface-attach --port-id 686747b0-9b96-49af-9588-1edd9434502e vm
> nova interface-attach --port-id cc9b9d7a-b422-4d9c-9810-510bc860eb43 vm
>
> I was wondering how often you can catch this bug.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1578520
>
> Title:
> attache many port as soon as possible, some ports was lost in
> "instance_info_caches"
>
> Status in OpenStack Compute (nova):
> Invalid
>
> Bug description:
> In version mitaka
>
> for example:
> 1. a VM has two ports.
> 2. create two new ports
> 3. attach new ports to VM as soon as possible
> 4. the two new ports were attached to the VM,but there are only three ports in the "network_info" of table "instance_info_caches"
>
>
> Detail infomation: http://paste.openstack.org/show/496176/
>
> When attach a port , the update of table "instance_info_caches" is delayed.
> attach another port quickly, the current instance_info_caches do not has the first port. the first port is lost.
>
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