<div dir="ltr"><div><div><div>I have also recently been seeing 'Could not load <whatever>InterfaceDriver' warnings from the DHCP agent, and haven't yet understood that - although I'm pretty sure that my interface driver is being loaded really - or else none of my networking function would work at all.<br><br></div>So it's possible that that part of your report is benign, and just a misleading warning. That said, I am still worried about it too, and would like to understand it properly.<br><br></div>I'm not aware of seeing the other symptoms you mentioned.<br><br></div> Neil<br><br></div><br><div class="gmail_quote"><div dir="ltr">On Mon, Dec 5, 2016 at 3:14 PM Grant Morley <<a href="mailto:grant@absolutedevops.io">grant@absolutedevops.io</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF" class="gmail_msg">
<p class="gmail_msg">Hi All,</p>
<p class="gmail_msg">We have just upgraded from Mitaka to Newton. We are running OSA
and we seem to have come across some weird networking issues since
the upgrade. Basically network access to instances is very
intermittent and seems to randomly stop working. <br class="gmail_msg">
</p>
<p class="gmail_msg">We are running neutron in HA and it appears that both of the
neutron nodes are now trying to be master and are both trying to
bring up the gateway IP addresses which would be causing
conflicts. <br class="gmail_msg">
</p>
<p class="gmail_msg">We are also seeing a lot of the following in the
"neutron-dhcp-agent" log files:</p>
<p class="gmail_msg">2016-12-05 14:42:24.837 2020 WARNING stevedore.named
[req-1955d0a1-1453-4c65-a93a-54e8ea39b230
1ac995c0729142289f7237222f335806 3cc95dbe91c84e3e8ebbb9893ee54d20
- - -] Could not load
neutron.agent.linux.interface.BridgeInterfaceDriver<br class="gmail_msg">
2016-12-05 14:42:42.803 2020 INFO neutron.agent.dhcp.agent
[req-fad7d2bb-9d3c-4192-868a-0164b382aecf
1ac995c0729142289f7237222f335806 3cc95dbe91c84e3e8ebbb9893ee54d20
- - -] Trigger reload_allocations for port admin_state_up=True,
allowed_address_pairs=[], binding:host_id=, binding:profile=,
binding:vif_details=, binding:vif_type=unbound,
binding:vnic_type=normal, created_at=2016-12-05T14:42:42Z,
description=, device_id=8752effa-2ff2-4ce1-be70-e9f2243612cb,
device_owner=network:floatingip, extra_dhcp_opts=[],
fixed_ips=[{u'subnet_id': u'4ca7db2d-544a-4a97-b5a4-3cbf2467a4b7',
u'ip_address': u'XXX.XXX.XXX.XXX'}],
id=b3cf223d-8e76-484a-a649-d8a7dd435124,
mac_address=fa:16:3e:ff:0d:50, name=,
network_id=af5db886-0178-4f8d-9189-f55f773b37fa,
port_security_enabled=False, project_id=, revision_number=4,
security_groups=[], status=N/A, tenant_id=,
updated_at=2016-12-05T14:42:42Z</p>
<p class="gmail_msg">I am a bit concerned about neutron not being able to load the
Bridge interface driver.</p>
<p class="gmail_msg">Has anyone else come across this at all or have any pointers?
This was working fine in Mitaka it just seems since the upgrade to
Newton, we have these issues.</p>
<p class="gmail_msg">I am able to provide more logs if they are needed.</p>
<p class="gmail_msg">Regards,<br class="gmail_msg">
</p>
<div class="m_-994859292978489524moz-signature gmail_msg">-- <br class="gmail_msg">
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<div class="gmail_msg"> <font face="Lucida Grande, Verdana, Arial, sans-serif" color="#A8D8FF" class="gmail_msg"> <span style="font-size:11px;line-height:15px;float:left;margin-right:10px" class="gmail_msg"> <img src="cid:part1.C5F1AE6E.37FE9484@absolutedevops.io" style="color:#a8d8ff;font-family:'Lucida Grande',Verdana,Arial,sans-serif;font-size:11px;line-height:15px;float:left;margin-top:0px;margin-right:10px" class="gmail_msg"> </span>
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