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https://bugs.launchpad.net/bugs/1231930
Title:
Rules dissapear after 300 seconds of inactivity
Status in tripleo - openstack on openstack:
Fix Released
Bug description:
Using Feodra 19 for TripleO
In the TripleO overcloud I can successfully connect to VM's but soon
after loose ssh connections,
I think this is after at least 5 minutes of inactivity, I'm observing
the learned rule in table 20 vanish if the hard_age hits 300, see the
two snippets from "ovs-ofctl dump-flows br-tun" with the learned rule
and then gone the next second
Fri 27 Sep 09:49:14 UTC 2013
cookie=0x0, duration=1930.786s, table=10, n_packets=247, n_bytes=32673,
idle_age=300, priority=1
actions=learn(table=20,hard_timeout=300,priority=1,NXM_OF_VLAN_TCI[0..11],NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[],load:
0->NXM_OF_VLAN_TCI[],load:NXM_NX_TUN_ID[]->NXM_NX_TUN_ID[],output:NXM_OF_IN_PORT[]),output:1
cookie=0x0, duration=800.717s, table=20, n_packets=231, n_bytes=23336,
hard_timeout=300, idle_age=300, hard_age=300,
priority=1,vlan_tci=0x0002/0x0fff,dl_dst=fa:16:3e:e4:de:d6
actions=load:0->NXM_OF_VLAN_TCI[],load:0x1->NXM_NX_TUN_ID[],output:2
Fri 27 Sep 09:49:15 UTC 2013
cookie=0x0, duration=1931.798s, table=10, n_packets=247,
n_bytes=32673, idle_age=301, priority=1
actions=learn(table=20,hard_timeout=300,priority=1,NXM_OF_VLAN_TCI[0..11],NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[],load:0->NXM_OF_VLAN_TCI[],load:NXM_NX_TUN_ID[]->NXM_NX_TUN_ID[],output:NXM_OF_IN_PORT[]),output:1
Is the correct thing to do just to remove the hard_timeout=300, this
seems to work for me
diff --git a/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py
b/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py
index eefe384..62c87e3 100644
--- a/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py
+++ b/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py
@@ -715,7 +715,6 @@ class
OVSNeutronAgent(sg_rpc.SecurityGroupAgentRpcCallbackMixin,
# adresses (assumes that lvid has already been set by a previous
flow)
learned_flow = ("table=%s,"
"priority=1,"
- "hard_timeout=300,"
"NXM_OF_VLAN_TCI[0..11],"
"NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[],"
"load:0->NXM_OF_VLAN_TCI[],"
or should this rule just reappear when I try to reconnect, I've also observed
the rule returning when I try to connect, and I can then connect so the loss of
connectivity doesn't always happen after 5 minutes. But the rule not
reappearing seems to line up with times I can't ssh to the VM.
Also its worth noting that the hard_timeout is whats being set but it
appears to be acting more like a idle_timeout although I may be
understanding something wroge here, ovs newbie...
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