Monday, 2014-05-05

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gustchaypo: hey :)00:25
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openstackgerritXu Han Peng proposed a change to openstack/neutron: Upgrade failure for DB2 at ml2_binding_vif_details  https://review.openstack.org/8999001:57
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openstackgerritA change was merged to openstack/neutron: Optimize querying for security groups  https://review.openstack.org/9165403:41
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kumar__hi all04:22
kumar__I have a openstack icehouse setup, for networking i am using neutron with ml2 plugin, my VMs has ip address, but can't able to ping from compute and controller node04:23
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kumar__any solution pls04:24
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manoI have a openstack icehouse setup, for networking i am using neutron with ml2 plugin, my VMs has ip address, but can't able to ping from compute and controller node04:28
manoPlease help me if anyone experienced on this issue04:28
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manoI have a openstack icehouse setup, for networking i am using neutron with ml2 plugin, my VMs has ip address, but can't able to ping from compute and controller node04:34
manoPlease help me if anyone experienced on this issue04:34
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tchaypomano: what can't you ping?04:52
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mano_i can't ping or ssh the openstack instances05:04
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tchaypoah; so just to double-check - the problem is that you can't ping the instance you created in openstack from the controller node?05:06
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mano_tchaypo: i can ping openstack instances from compute node only by using " ip netns <namespace>  ping 10.2.50.3305:06
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mano_yes. i can't ping the instances from controller and other nodes05:06
tchaypoIt sounds to me as though packets going out via the netns namespace are being routed differently to packets going out via the normal channels05:07
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openstackgerritChristian Berendt proposed a change to openstack/python-neutronclient: sort lists by field name by default  https://review.openstack.org/9205205:09
tchaypocould you compare "ip route" and "ip netns exec <namespace> ip route"?05:09
mano_tchaypo:  yes05:09
tchaypoIF it's not that, my next guess would be firewalling somewhere along the way - perhaps traffic from the IP of your main interface is being blocked, but traffic from the interface inside the namespace is allowed05:10
mano_tchaypo: it shows different outputs05:11
mano_tchaypo: i don't know how to fix, can you give me any solution05:14
tchaypoI'm not sure how to solve it either. If you can tweak the routes on the main interface to go to the same gateway as the namespaced traffic does, that my help - or it may be that it just means you discover that there's a firewall preventing the traffic as well05:15
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mano_i can't ping or ssh the openstack instances05:21
mano_any help pls05:21
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openstackgerritChristian Berendt proposed a change to openstack/python-neutronclient: added new column binary to the listing of agents  https://review.openstack.org/9071205:41
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gongyshping amotoki06:02
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gongyshping salv-orlando06:06
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veenaHi, how to find which VMs are communicating with which other VMs in the network06:17
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veenaAny idea to trace end-to end VM communication in the controller node? like the src and dst IP or MAC of the communicating VMs in all the compute nodes?06:25
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kashyapveena, I don't have handy commands, but you can probably try tcpdump06:34
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veenaHi Kashyap, tcpdump gives the packets in that particular servers. But I need to monitor from Controller node06:36
afazekasgongysh: ping06:36
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kashyapveena, Hmm, then you can probably try a combination of ssh+wireshark06:39
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openstackgerritAnn Kamyshnikova proposed a change to openstack/neutron: Fix difference in index creation for foreign key in MySQL and Postgres  https://review.openstack.org/8051807:01
openstackgerritAnn Kamyshnikova proposed a change to openstack/neutron: Fix 'server_default' parameter usage in migrations and models  https://review.openstack.org/8207307:06
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openstackgerritAssaf Muller proposed a change to openstack/neutron: Testing: Change all occurences of do_delete to no_delete  https://review.openstack.org/9201307:45
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gongysh<afazekas> hi08:13
kevinbentonsalv-orlando: ping08:14
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afazekasgongysh: just one line change will not be enough here https://review.openstack.org/#/c/92018/ , but clearing the self.update_ports earlier might be possible08:21
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afazekashgongysh: ttp://www.fpaste.org/99162/13992783/08:25
afazekashgongysh: http://www.fpaste.org/99162/13992783/08:26
afazekasgongysh: http://www.fpaste.org/99162/13992783/08:27
* afazekas copy paste is difficult :)08:27
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afazekasIn paste site the first diff is against the current review patch-set, the second is against the master.  Do you think the 2th diff is better than the current review patch-set ?08:31
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gongyshafazekas: I have the comment on the patch08:43
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afazekasgongysh: I have commented on the patch10:46
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manohi all11:33
manocan't ping or ssh  my openstack instances11:33
manoany help pls11:34
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manocan't ping or ssh  my openstack instances11:39
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manohow to fix this?11:39
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jlibosvaobondarev: Hi, thanks for approving H302 patches. One last is waiting for approval: https://review.openstack.org/#/c/88578/ Could you please check that?12:46
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obondarevjlibosva: will do12:48
jlibosvaobondarev: thanks! :)12:48
obondarevjlibosva: np, we have 4 +2 there, approved12:49
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openstackgerritArvind Somya proposed a change to openstack/neutron: Cisco APIC ML2 mechanism driver, part 2  https://review.openstack.org/7337213:38
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openstackgerritafazekas proposed a change to openstack/neutron: Revert "Delete routers that are requested but not reported as active"  https://review.openstack.org/9214715:45
openstackgerritDirk Mueller proposed a change to openstack/neutron: Remove explicit dependency on amqplib  https://review.openstack.org/9214915:46
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openstackgerritafazekas proposed a change to openstack/neutron: L3 RPC loop could delete a router on concurrent update  https://review.openstack.org/9201816:01
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aglarendilHi, openstackers, I have a question regarding neutron iptables config on the compute nodes.16:28
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aglarendilWhat happens if I do iptables-save iptables-restore and some outdated rules are restored?16:29
aglarendilWill neutron agent clean them up automatically?16:29
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haleybthe next time it updates a rule it *should* fix things up, at least the things that start with neutron-.  One way for you to do this better is to "grab" the iptables file lock, update things, then release it - that will block the agent from making updates16:32
haleybyou are talking about a compute node here, right?16:32
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openstackgerritBaodong (Robert) Li proposed a change to openstack/neutron-specs: Add IPv6 RA support in neutron  https://review.openstack.org/9216416:36
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aglarendilhaleyb: what do you mean by iptables lock file. is there a specific file I can touch to make agent shut up for a while?16:40
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aglarendilhaleyb: Yes,  I am talking about compute node.16:40
aglarendilhaleyb: Actually, I am considering a use case when I have my own rules for compute node, neutron adds its own and I do iptables-save to make the rules persistent16:41
aglarendilhaleyb: next time the node boots it has all the neutron-* chains rules setup again16:41
aglarendilhaleyb: and some rules from this iptables-save file may be obviously outdated, e.g. blockin some traffic or allowing unwanted traffic16:42
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haleybaglarendil: let me find the path to the lock file16:43
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aglarendilhaleyb:  the problem is that I can do iptables-save while neutron agent has already made those updates16:44
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haleybright, but neutron will only run iptables-save/restore when it is holding a "lock".  I believe it's /var/lib/neutron/lock/neutron-iptables16:46
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aglarendilhaleyb: do you mean that iptables always takes care about its rules on itself? so I do not need to care if I somehow drop the rule from neutron table?16:51
aglarendilhaleyb: I am considering approach of skipping neutron rules during iptables-save16:51
aglarendilhaleyb: then my compute node will boot without neutron rules16:52
haleybaglarendil: i'm saying that neutron agents will grab that lock in order to not interfere with each other16:54
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openstackgerritBaodong (Robert) Li proposed a change to openstack/neutron-specs: Add IPv6 RA support in neutron  https://review.openstack.org/9216416:54
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haleybyou modifying iptables rules with iptables-save/restore will cause a race condition even if you're not modifying the neutron- rules, i've seen it happen in practice16:55
aglarendilhaleyb: I see. So my usecase is related to the fact that I cannot separate my actions with neutron agents actions completely16:55
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aglarendilhaleyb: Yeah, I understand that this thing is kinda racy. What I am actually talking about is that I want to do, e.g. update of openstack packages16:56
aglarendilhaleyb: I am using some configuration tool like puppet and it simply reruns with newer package repository16:57
aglarendilhaleyb: in this case I do already have running stuff on the compute node and puppet is going to ensure that I did not lose any rules in my iptables16:57
aglarendilhaleyb: then it is going to make them persistent. all the neutron rules will be dumped into this file16:58
aglarendilhaleyb: and if I do iptables-restore then things get really broken. So my real question is: how long will it take for agents to restore the firewall configuration?16:59
aglarendilhaleyb: is there any option to make them clean up their own rules?17:00
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haleybI would advise you to flock that lock file, run iptables, then unlock it, anything else runs the risk of failure.  The easiest way to force the agent to "fix" things is to restart it, since it won't otherwise touch iptables if it doesn't have to from what i remember17:01
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aglarendilhaleyb: ok. thank you.17:16
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afaranhaHello, I would like to understand some questions in network.17:31
afaranhaIn the scenario where I created a shared network (by POST /v2.0/networks) and a Nova server A in Tenant A, and a server B in tenant B.17:31
afaranhaServer A has IP1, if I delete server A can I assign IP1 to Server B, since the network is shared?17:31
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openstackgerritPradeep Kilambi proposed a change to openstack/neutron: Send additional payload as part of delete event  https://review.openstack.org/9147417:43
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openstackgerritBaodong (Robert) Li proposed a change to openstack/neutron-specs: Add IPv6 RA support in neutron  https://review.openstack.org/9216417:46
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openstackgerritBaodong (Robert) Li proposed a change to openstack/neutron-specs: Add IPv6 RA support in neutron  https://review.openstack.org/9216417:52
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openstackgerritBaodong (Robert) Li proposed a change to openstack/neutron-specs: Add IPv6 RA support in neutron  https://review.openstack.org/9216417:53
openstackgerritBaodong (Robert) Li proposed a change to openstack/neutron-specs: Add IPv6 RA support in neutron  https://review.openstack.org/9216417:55
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openstackgerritAARON ZHANG proposed a change to openstack/neutron-specs: Assign cisco nw profile to multi-tenants in single request  https://review.openstack.org/9191018:12
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lotreckIs this the correct place to ask neutron support questions ?18:15
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lotreckmy cirros instances spawn ok . but somtimes they get an ip address and sometimes they don't . I've got the dhcp_agent in debug mode but there's not much in the log files that would indicate what's going on. Where else can i look ?18:19
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ekarlsoanyone noticed ovsdb server dying all the time causing the neutron agent to bork on trusty or others ?18:26
ekarlsousing ovs 2.018:27
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ekarlso2.0.1 actually18:27
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openstackgerritCarl Baldwin proposed a change to openstack/neutron: Set onlink routes for all subnets on an external network  https://review.openstack.org/9025018:47
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openstackgerritCarl Baldwin proposed a change to openstack/neutron: Set onlink routes for all subnets on an external network  https://review.openstack.org/9025019:01
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kfox1111Question. Can you make a subnet where the subnet is used by the vm's directly, and have a pool of floating ip's available from that same subnet? A provider network maybe?19:04
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openstackgerritCarl Baldwin proposed a change to openstack/neutron-specs: Allow more flexible connection to external network  https://review.openstack.org/8861919:57
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marunarmax: ping re: https://github.com/openstack/neutron/blob/master/neutron/tests/base.py#L6720:13
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marunarmax: I'd like to talk about  https://github.com/openstack/neutron/commit/fb9886b903434321e62373cb4c11ba014921e4df20:18
marunarmax: It looks like your patch expects a plugin to persist across tests, and I'm seeing serious memory problems related to plugin instances persisting across tests.20:19
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openstackgerritSumit Naiksatam proposed a change to openstack/neutron-specs: Advanced Services Common Framework  https://review.openstack.org/9220020:21
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openstackgerritSumit Naiksatam proposed a change to openstack/neutron-specs: Advanced Services Common Framework  https://review.openstack.org/9220020:24
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armaxmarun: here20:44
marunarmax: hi :)20:44
marunarmax: so, backstory, I've been digging into the unit test memory leaks20:44
armaxmarun: the patch expected what was already assumed to be there20:44
armaxmarun: hi20:45
marunarmax: one of the main problems appears to be plugin instances persisting across tests...20:45
armaxmarun: that's my understanding too20:45
marunarmax: so my thought is to use only weakref proxies outside of NeutronManager, and then clear the manager on test teardown20:45
marunarmax: I'm also going to add a check that fails the test if the plugin is detected as being live at the end of the test20:46
marunarmax: do you have any concerns with that approach?20:46
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armaxmarun: if this is what it takes to address the memory leak I am all in for it20:48
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marunarmax: ok :)20:48
marunarmax: will be sure to add you as a reviewer...20:48
armaxmarun: besides, there's really no good reason for the plugin to exist after the test run20:48
marunarmax: agreed.20:48
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openstackgerritCarl Baldwin proposed a change to openstack/neutron: Set onlink routes for all subnets on an external network  https://review.openstack.org/9025021:52
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rm_workhey markmcclain, I've been looking through for a bug or something to get my feet wet in the commit process, and I noticed this (from one of your commits a while back): https://github.com/openstack/neutron/blob/master/.pylintrc21:55
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rm_workmarkmcclain: where the module-rgx is specified, you left the old quantum line in there… won't that override the neutron line before it? is that a bug?21:55
rm_work(line 27/28)21:55
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markmcclainrm_work: yep line 28 should be dropped22:06
rm_workmarkmcclain: :P woot, found a commit then :P22:07
rm_workmarkmcclain: do I need to submit a bug report, THEN a patch to gerrit?22:07
markmcclainyes22:07
rm_workok22:07
kevinbentonsalv-orlando: ping22:08
salv-orlandohi kevinbenton22:08
kevinbentonsalv-orlando: may i borrow your reviewer skills for a moment to look at this? https://review.openstack.org/#/c/91497/22:08
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salv-orlandokevinbenton: in a bit22:09
kevinbentonsalv-orlando: it seems API related enough to land in your territory22:09
rm_workmarkmcclain: could you confirm my bug then? :) https://bugs.launchpad.net/neutron/+bug/131633422:10
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markmcclainyep will do22:11
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gongyshping carl_baldwin22:28
carl_baldwingongysh: pong22:28
gongyshcarl_baldwin: can u explain more about https://review.openstack.org/#/c/84575/4?22:29
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carl_baldwingongysh: Before this patch, it was not possible to disable a router by setting admin_state_up = False.22:30
gongyshcarl_baldwin: why not?  https://review.openstack.org/#/c/84575/4/neutron/agent/l3_agent.py22:31
gongyshcarl_baldwin: line 802-803 will do this.22:31
carl_baldwingongysh: In my testing it was not doing that.  Let me refresh my memory on why this was.22:33
gongyshcarl_baldwin: I am testing too, I will get to u in a few mins22:33
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openstackgerritAdam Harwell proposed a change to openstack/neutron: Remove duplicate module-rgx line in .pylintrc The correct neutron configuration will no longer be overwritten by the old quantum configuration.  https://review.openstack.org/9222422:38
gongyshcarl_baldwin: according to my test, it does. I mean the line 802-803 will handle the admin_state_up falsed router.22:38
carl_baldwingongysh: I don’t believe it will in the _rpc_loop code path where all_routers=False22:41
carl_baldwinThe router with admin_state_up = False will not be in the list of routers passed to _process_routers in _rpc_loop.  So, line 802-3 will not have it there.22:42
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carl_baldwingongysh: It is not sufficient to wait for _sync_routers_task to disable such a router.22:43
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gongyshcarl_baldwin:  my current test is to add a router, add a router interface so that it will be scheduled, and update the admin_state_up to false22:45
carl_baldwingongysh: I will have a chance to test in just a few minutes…22:47
gongyshcarl_baldwin: ok22:47
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carl_baldwingongysh: Just tested now with existing router after reverting that patch.  1) Confirmed ping through floating ip.  2) Set admin_state_up=False through API 3) Confirm I can still ping with floating IP.23:00
carl_baldwingongysh: Then, I reset to before the revert and did the same test.  I could not ping the fip in step 3.23:00
gongyshcarl_baldwin: yes that is the intent of admin_state_up = False.23:02
gongyshcarl_baldwin: if a router is disabled, the floating ips are all blocked.23:03
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carl_baldwingongysh:  The broken code path here was _rpc_loop fetches the list of existing routers.  But, this only fetches active routers.  So, the router with admin_state_up is not returned in the list.  The list is passed to _process_routers.  It hits line 802 but the router is not included in prev_router_ids here.23:03
carl_baldwingongysh: Agreed that is the intent.  My testing shows this use case was broken before my patch and fixed after my patch.23:04
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gongyshcarl_baldwin: ok,  your explanation make sense, but I need some time to do investigation on my test, my codes is based on I-milestone 123:11
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gongyshcarl_baldwin: I will back to u when I got result.23:11
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gongyshcarl_baldwin: hi, I got the same result now.23:39
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openstackgerritAdam Harwell proposed a change to openstack/neutron: Remove duplicate module-rgx line in .pylintrc  https://review.openstack.org/9222423:41
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