Re: [openstack-dev] [neutron] Backup port info to restore the flow rules

2016-02-22 Thread Jian Wen
On Mon, Feb 22, 2016 at 7:03 PM, Ihar Hrachyshka wrote: > Agent could probably try to restore the state from its internal state. If > that’s the missing bit you want to have, I think that could stand for a > proper RFE. > Good point. Thanks. -- Best, Jian __

Re: [openstack-dev] [neutron] Backup port info to restore the flow rules

2016-02-22 Thread Jian Wen
e combined failures or unanticipated failures require human interaction. For example, a cron job accidentlly killed the OvS service(flows will be gone) when one of RabbitMQ, MySQL and neutron server is down/unavailable. On Mon, Feb 22, 2016 at 5:44 PM, Ihar Hrachyshka wrote: > Ji

[openstack-dev] [neutron] Backup port info to restore the flow rules

2016-02-16 Thread Jian Wen
Hello, If we restart OvS/ovs-agent when one or more of Neutron, MySQL and RabbitMQ is not available, the flow rules in OvS will be gone. If Neutron/MySQL/RabbitMQ doesn't become available in time, the VMs will lose their network connections. It's not easy for an operations engineer to manually res

Re: [openstack-dev] [chef] A new Core member!

2015-04-19 Thread Jian Wen
Congrats On Sat, Apr 18, 2015 at 5:42 AM, JJ Asghar wrote: > Hey everyone! > > I’d like to announce that Zhiwei Chen has stepped up as a new Core Member. > Please take a moment to congratulate him! > > Thanks Zhiwei! > > JJ Asghar > ___

Re: [openstack-dev] [neutron] HA of dhcp agents?

2014-10-20 Thread Jian Wen
See dhcp_agents_per_network in neutron.conf. https://bugs.launchpad.net/neutron/+bug/1174132 2014-10-21 6:47 GMT+08:00 Noel Burton-Krahn : > I've been working on failover for dhcp and L3 agents. I see that in [1], > multiple dhcp agents can host the same network. However, it looks like I > hav

Re: [openstack-dev] [Neutron] Is network ordering of vNICs guaranteed?

2014-08-13 Thread Jian Wen
Ordering of vNICs is not 100% guaranteed for the cloud images which are not shipped with /etc/udev/rules.d/70-persistent-net.rules. e.g. attaching a port and deattaching another port, then reboot the instance. 2014-08-12 15:52 GMT+08:00 Aaron Rosen : > This bug was true in grizzly and older (and

Re: [openstack-dev] [Nova][Neutron][Technical Committee] nova-network -> Neutron. Throwing a wrench in the Neutron gap analysis

2014-08-10 Thread Jian Wen
Our use case is like the Yahoo one. 2014-08-07 7:10 GMT+08:00 Ed Hall : > > > tl;dr: we’re willing to be a use case, but our internal timeline is such > that in all likelihood > this will be as a post-mortem. > > We (Yahoo) have thousands of pets that need migrated as well as an > unspecified > n

Re: [openstack-dev] [nova] nova bug scrub web page

2014-07-04 Thread Jian Wen
Awesome! Any plan to add the neutron project? 2014-07-04 5:00 GMT+08:00 Tracy Jones : > Hi Folks – I have taken a script from the infra folks and jogo, made > some tweaks and have put it into a web page. Please see it here > http://54.201.139.117/demo.html > > > This is all of the new, conf

Re: [openstack-dev] [nova] Question about modifying instance attribute(such as cpu-QoS, disk-QoS ) without shutdown the instance

2014-06-13 Thread Jian Wen
Add dynamic adjust disk qos support https://blueprints.launchpad.net/nova/+spec/dynamic-adjust-disk-qos It's not approved yet. 2014-04-09 0:45 GMT+08:00 Trump.Zhang : > Such as QoS attributes of vCPU, Memory and Disk, including IOPS limit, > Bandwidth limit, etc. > > > 2014-04-08 23:04 GMT+08:0

Re: [openstack-dev] Reg : Security groups implementation using openflows in quantum ovs plugin

2013-11-28 Thread Jian Wen
I don't think we can implement a stateful firewall[1] now. Once connection tracking capability[2] is added to the Linux OVS, we could start to implement the ovs-firewall-driver blueprint. [1] http://en.wikipedia.org/wiki/Stateful_firewall [2] http://wiki.xenproject.org/wiki/Xen_Development_Projec

[openstack-dev] [eventlet] should we use spawn instead of spawn_n?

2013-11-28 Thread Jian Wen
eventlet.spawn_n is the same as eventlet.spawn, but it’s not possible to know how the function terminated (i.e. no return value or exceptions)[1]. If an exception is raised in the function, spawn_n prints a stack trace. The stack trace will not be written to the log file. It will be lost if we rest

Re: [openstack-dev] run_tests in debug mode fails

2013-09-10 Thread Jian Wen
Hello, I can confirm this is a bug. I use nosetests instead for the moment. nosetests -s test.module nosetests -s another.test:TestCase.test_method nosetests -s a.test:TestCase nosetests -s /path/to/test/file.py:test_function On Mon, Sep 9, 2013 at 7:20 PM, Rosa, Andrea (HP Cloud Services) < a

Re: [openstack-dev] [networking] quantum...oops neutron unit tests

2013-07-24 Thread Jian Wen
Hello, I had trouble with run-tests.sh. `tox -epy27` works. On Fri, Jun 21, 2013 at 12:32 AM, Armando Migliaccio wrote: > Folks, > > Is anyone having troubles running the units tests locally on a clean venv > with both run-tests.sh and tox? > > I found out that this is relevant to the issue I a