<div dir="ltr">I figured out this issue.<div><br></div><div>by default, interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver and dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq</div><div>in dhcp_agent.ini is commented. </div>
<div><br></div><div>Also, the line interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver in l3_agent.ini is commented. </div><div><br></div><div>I uncommented them and I can now see qrouter and qdhcp with 'ip netns'</div>
<div><br></div><div>All looks well now.</div><div><br></div><div>Thanks</div><div>Paras.</div><div><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Nov 11, 2013 at 5:01 PM, Paras pradhan <span dir="ltr"><<a href="mailto:pradhanparas@gmail.com" target="_blank">pradhanparas@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">I am also seeing the respawsing in syslog.<div><br></div><div>--</div><div><div>Nov 11 17:00:12 havana kernel: [ 1019.203880] init: neutron-dhcp-agent main process (23258) terminated with status 1</div>
<div>
Nov 11 17:00:12 havana kernel: [ 1019.203962] init: neutron-dhcp-agent main process ended, respawning</div><div>Nov 11 17:00:13 havana kernel: [ 1019.818240] init: neutron-dhcp-agent main process (23275) terminated with status 1</div>
<div>Nov 11 17:00:13 havana kernel: [ 1019.818266] init: neutron-dhcp-agent main process ended, respawning</div></div><div>--</div><div><br></div><div>Paras.</div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra">
<br><br><div class="gmail_quote">
On Mon, Nov 11, 2013 at 12:06 PM, Paras pradhan <span dir="ltr"><<a href="mailto:pradhanparas@gmail.com" target="_blank">pradhanparas@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">yes.<div><br></div><div><div>ii openvswitch-datapath-dkms 1.10.2-0ubuntu2~cloud0 Open vSwitch datapath module source - DKMS version</div></div><div><br></div><div><br></div>
<div>Thanks</div><span><font color="#888888"><div>Paras.</div></font></span></div><div><div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Nov 11, 2013 at 11:50 AM, Igor Cardoso <span dir="ltr"><<a href="mailto:igordcard@gmail.com" target="_blank">igordcard@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Flow gre-# is missing... Do you have openvswitch-datapath-dkms installed?</div><div class="gmail_extra">
<div><div><br><br><div class="gmail_quote">On 11 November 2013 16:24, Paras pradhan <span dir="ltr"><<a href="mailto:pradhanparas@gmail.com" target="_blank">pradhanparas@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Yes br-tun is there. here is the o/p of ovs-ofctl.<div><br></div><div>-</div><div><div>root@havana:~# ovs-ofctl show br-tun</div>
<div>OFPT_FEATURES_REPLY (xid=0x2): dpid:00004e6501755448</div><div>n_tables:254, n_buffers:256</div>
<div>capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP</div><div>actions: OUTPUT SET_VLAN_VID SET_VLAN_PCP STRIP_VLAN SET_DL_SRC SET_DL_DST SET_NW_SRC SET_NW_DST SET_NW_TOS SET_TP_SRC SET_TP_DST ENQUEUE</div>
<div> 1(patch-int): addr:42:9d:7c:13:4b:58</div><div> config: 0</div><div> state: 0</div><div> speed: 0 Mbps now, 0 Mbps max</div><div> LOCAL(br-tun): addr:4e:65:01:75:54:48</div><div> config: 0</div>
<div> state: 0</div><div> speed: 0 Mbps now, 0 Mbps max</div><div>OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0</div></div><div>--</div><div><br></div><div>Thanks</div><span><font color="#888888"><div>
Paras.</div></font></span></div><div><div><div class="gmail_extra">
<br><br><div class="gmail_quote">On Sat, Nov 9, 2013 at 3:44 AM, Igor Cardoso <span dir="ltr"><<a href="mailto:igordcard@gmail.com" target="_blank">igordcard@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">I guess br-tun is created in a single node as well, someone correct me if I'm wrong please.<div>What is the output of ovs-ofctl show br-tun ?<br><div class="gmail_extra"><div><div><br><br><div class="gmail_quote">
On 9 November 2013 02:35, Paras pradhan <span dir="ltr"><<a href="mailto:pradhanparas@gmail.com" target="_blank">pradhanparas@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<p dir="ltr">Yes gre . all (controller plus compute) in a single node though.</p><div><div>
<div class="gmail_quote">On Nov 8, 2013 5:17 PM, "Igor Cardoso" <<a href="mailto:igordcard@gmail.com" target="_blank">igordcard@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Are you using GRE?</div><div class="gmail_extra"><br><br><div class="gmail_quote">On 8 November 2013 22:48, Paras pradhan <span dir="ltr"><<a href="mailto:pradhanparas@gmail.com" target="_blank">pradhanparas@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>use_namespace is set to true, iproute is up to date from 12.04 LTS.</div><div><br></div><div>This is what I see when tcpdump</div>
<div>-</div><div><br></div><div><div>root@havana:/home/localadmin# tcpdump -i qvo6157a9aa-76</div>
<div>tcpdump: WARNING: qvo6157a9aa-76: no IPv4 address assigned</div><div>tcpdump: verbose output suppressed, use -v or -vv for full protocol decode</div><div>listening on qvo6157a9aa-76, link-type EN10MB (Ethernet), capture size 65535 bytes</div>
<div>16:46:39.006180 IP6 fe80::40fa:38ff:fee3:a3fa > ff02::16: HBH ICMP6, multicast listener report v2, 1 group record(s), length 28</div><div>16:46:39.784902 IP6 :: > ff02::16: HBH ICMP6, multicast listener report v2, 1 group record(s), length 28</div>
<div>16:46:39.824273 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:9a:38:1e (oui Unknown), length 280</div><div>16:46:39.933463 IP6 :: > ff02::1:ff9a:381e: ICMP6, neighbor solicitation, who has fe80::f816:3eff:fe9a:381e, length 24</div>
<div>16:46:40.325389 IP6 :: > ff02::16: HBH ICMP6, multicast listener report v2, 1 group record(s), length 28</div><div>16:46:40.934808 IP6 fe80::f816:3eff:fe9a:381e > ip6-allrouters: ICMP6, router solicitation, length 16</div>
<div>16:46:42.833239 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:9a:38:1e (oui Unknown), length 280</div><div>16:46:44.936871 IP6 fe80::f816:3eff:fe9a:381e > ip6-allrouters: ICMP6, router solicitation, length 16</div>
<div>16:46:45.840668 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:9a:38:1e (oui Unknown), length 280</div><div>16:46:48.945478 IP6 fe80::f816:3eff:fe9a:381e > ip6-allrouters: ICMP6, router solicitation, length 16</div>
<div>16:47:00.542029 IP 0.0.0.0 > <a href="http://all-systems.mcast.net" target="_blank">all-systems.mcast.net</a>: igmp query v2</div><div>16:47:00.542036 IP6 fe80::d894:29ff:fe08:5ec > ip6-allnodes: HBH ICMP6, multicast listener querymax resp delay: 10000 addr: ::, length 24</div>
</div><div>--</div><div><br></div><div>Thanks!</div><span><font color="#888888"><div>Paras.</div><div><br></div></font></span></div><div><div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Fri, Nov 8, 2013 at 4:26 PM, Rami Vaknin <span dir="ltr"><<a href="mailto:rvaknin@redhat.com" target="_blank">rvaknin@redhat.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"><div>
<div>On 11/09/2013 12:18 AM, Paras pradhan
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">dnsmaq is running, ip netns doesn't return
anything.</div>
</blockquote>
<br></div>
Empty output from "ip netns" can be either not using namespaces (run
grep "use_namespaces /etc/neutron/l3_agent.ini" to find out) or
using wrong iproute package.<br>
Could you please also check what does tcpdump report? could you see
the discover on the dhcp nic (when using ovs it's a tapxxxxxxxx-xx
nic)? could you see an offer sent from that nic?<div><div><br>
<br>
<blockquote type="cite">
<div dir="ltr">
<div><br>
</div>
<div>-Paras.</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Fri, Nov 8, 2013 at 4:07 PM, Rami
Vaknin <span dir="ltr"><<a href="mailto:rvaknin@redhat.com" target="_blank">rvaknin@redhat.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>
<div>On 11/08/2013 11:35 PM, Paras pradhan wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr"><span style="font-family:arial,sans-serif;font-size:13px">Hi,</span>
<div style="font-family:arial,sans-serif;font-size:13px"><br>
</div>
<div style="font-family:arial,sans-serif;font-size:13px">I
gpt an instance UP but it doesnot get an IP
address. neutron agent-list lists DHCP agent
happy. While booting I see cirros stuck at sending
discover... multiple times. dnsmasq process is
running. how do i debug?</div>
</div>
</blockquote>
<br>
</div>
I would start with:<br>
* ps -efl | grep dnsmasq | grep -v grep - to verify that
the dnsmasq process is running, you can also check the
conf file appeas in this output<br>
* ip netns - to get the list of namespaces<br>
* ip netns exec <the_right_dhcp_namespace_name>
tcpdump -i any ... - to look for the dhcp offer or arp
issues<br>
* ping each other - instance to dhcp address, and vice
versa (the second one should be done from within the
namespace)<br>
<br>
<blockquote type="cite">
<div dir="ltr">
<div style="font-family:arial,sans-serif;font-size:13px"><br>
</div>
<div style="font-family:arial,sans-serif;font-size:13px">Thanks</div>
</div>
<br>
<fieldset></fieldset>
<br>
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<span><font color="#888888"> </font></span></blockquote>
<span><font color="#888888"> <br>
<br>
<pre cols="72">--
Thanks,
Rami Vaknin, QE @ Red Hat, TLV, IL.
</pre>
</font></span></div>
</blockquote>
</div>
<br>
</div>
</blockquote>
<br>
<br>
<pre cols="72">--
Thanks,
Rami Vaknin, QE @ Red Hat, TLV, IL.
</pre>
</div></div></div>
</blockquote></div><br></div>
</div></div><br>_______________________________________________<br>
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</div>
</blockquote></div>
</div></div></blockquote></div><br><br clear="all"><div><br></div></div></div><span><font color="#888888">-- <br><a href="http://igordcard.blogspot.com" target="_blank">http://igordcard.blogspot.com</a><br>
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</div></div></blockquote></div><br></div>
</div></div></blockquote></div><br></div>