[Bug 1101187] Re: in case ow two networks on the same bridge nova overwrites dnsmasq config

[TangYi]

I modified update_dhcp funciton in nova/network/linux_net.py ,

so it would be something like :
def update_dhcp(context, dev, network_ref):
    """(Re)starts a dnsmasq server for a given network.

    If a dnsmasq instance is already running then send a HUP
    signal causing it to reload, otherwise spawn a new instance.

    """
    network = "network-%s" % str(network_ref['id'])
    conffile = _dhcp_file(network, 'conf')
   ....

So it can bring up a dnsmasq instance for each network, hoever, it doesn't work either, maybe cause it had listen on the same bridge of two dnsmasq.
So there has one cannot receive dhcp request.

Anyone can help?

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Title:
  in case ow two networks on the same bridge nova overwrites dnsmasq
  config

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