Re: [Openstack] Question about Flat DHCP networking
Oh..I see. I look forward to see your code for it :) Thanks, Hitesh On Tue, Aug 21, 2012 at 11:27 AM, Eugene Kirpichov ekirpic...@gmail.comwrote: Heh, that's an article by my colleague Piotr Siwczak, which I already read very thouroughly during the review process - but thanks ;) Actually I already found the answer to my question and added it to the documentation (when the codereview is completed) - it was related to nova-dhcpbridge script. On Mon, Aug 20, 2012 at 10:21 PM, hitesh wadekar hitesh.wade...@gmail.com wrote: May be this article will help. http://www.mirantis.com/blog/openstack-networking-flatmanager-and-flatdhcpmanager/ Thanks, Hitesh On Tue, Aug 21, 2012 at 3:16 AM, Eugene Kirpichov ekirpic...@gmail.com wrote: Hi, I found the code. It's a dnsmasq dhcp-script called by dnsmasq for various events, it resides in nova/bin/nova-dhcpbridge and it, among other things, calls release_fixed_ip when the lease expires. On Sat, Aug 18, 2012 at 1:01 AM, Aaron Rosen aro...@nicira.com wrote: Hi Eugene, I'm not sure I have not looked at the code (I'm guessing that it probably keeps the lease around since it knows the VM is still active instead of recycling the ip address). Though this is just a guess. You should look at the implementation details if you are curious. Aaron On Sat, Aug 18, 2012 at 3:48 AM, Eugene Kirpichov ekirpic...@gmail.com wrote: Thanks. And how will n-net react? 18.08.2012, в 0:43, Aaron Rosen aro...@nicira.com написал(а): Hi Eugene, This means that if a VM stops it's DHCP client that nova-network will be aware of this since the VM will not attempt to renew it's DHCP lease. Aaron On Fri, Aug 17, 2012 at 5:58 PM, Eugene Kirpichov ekirpic...@gmail.com wrote: Hi, The documentation http://docs.openstack.org/diablo/openstack-compute/admin/content/configuring-flat-dhcp-networking.html has the passage: The nova-network service will track leases and releases in the database so it knows if a VM instance has stopped properly configuring via DHCP Can someone briefly explain me what this means, if possible with rough pointers to code? I don't recall nova noticing when my VM actually stopped properly configuring via DHCP. -- Eugene Kirpichov http://www.linkedin.com/in/eugenekirpichov ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp -- Eugene Kirpichov http://www.linkedin.com/in/eugenekirpichov ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp -- Eugene Kirpichov http://www.linkedin.com/in/eugenekirpichov ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
Re: [Openstack] Question about Flat DHCP networking
Hi, I found the code. It's a dnsmasq dhcp-script called by dnsmasq for various events, it resides in nova/bin/nova-dhcpbridge and it, among other things, calls release_fixed_ip when the lease expires. On Sat, Aug 18, 2012 at 1:01 AM, Aaron Rosen aro...@nicira.com wrote: Hi Eugene, I'm not sure I have not looked at the code (I'm guessing that it probably keeps the lease around since it knows the VM is still active instead of recycling the ip address). Though this is just a guess. You should look at the implementation details if you are curious. Aaron On Sat, Aug 18, 2012 at 3:48 AM, Eugene Kirpichov ekirpic...@gmail.com wrote: Thanks. And how will n-net react? 18.08.2012, в 0:43, Aaron Rosen aro...@nicira.com написал(а): Hi Eugene, This means that if a VM stops it's DHCP client that nova-network will be aware of this since the VM will not attempt to renew it's DHCP lease. Aaron On Fri, Aug 17, 2012 at 5:58 PM, Eugene Kirpichov ekirpic...@gmail.com wrote: Hi, The documentation http://docs.openstack.org/diablo/openstack-compute/admin/content/configuring-flat-dhcp-networking.html has the passage: The nova-network service will track leases and releases in the database so it knows if a VM instance has stopped properly configuring via DHCP Can someone briefly explain me what this means, if possible with rough pointers to code? I don't recall nova noticing when my VM actually stopped properly configuring via DHCP. -- Eugene Kirpichov http://www.linkedin.com/in/eugenekirpichov ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp -- Eugene Kirpichov http://www.linkedin.com/in/eugenekirpichov ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
Re: [Openstack] Question about Flat DHCP networking
May be this article will help. http://www.mirantis.com/blog/openstack-networking-flatmanager-and-flatdhcpmanager/ Thanks, Hitesh On Tue, Aug 21, 2012 at 3:16 AM, Eugene Kirpichov ekirpic...@gmail.comwrote: Hi, I found the code. It's a dnsmasq dhcp-script called by dnsmasq for various events, it resides in nova/bin/nova-dhcpbridge and it, among other things, calls release_fixed_ip when the lease expires. On Sat, Aug 18, 2012 at 1:01 AM, Aaron Rosen aro...@nicira.com wrote: Hi Eugene, I'm not sure I have not looked at the code (I'm guessing that it probably keeps the lease around since it knows the VM is still active instead of recycling the ip address). Though this is just a guess. You should look at the implementation details if you are curious. Aaron On Sat, Aug 18, 2012 at 3:48 AM, Eugene Kirpichov ekirpic...@gmail.com wrote: Thanks. And how will n-net react? 18.08.2012, в 0:43, Aaron Rosen aro...@nicira.com написал(а): Hi Eugene, This means that if a VM stops it's DHCP client that nova-network will be aware of this since the VM will not attempt to renew it's DHCP lease. Aaron On Fri, Aug 17, 2012 at 5:58 PM, Eugene Kirpichov ekirpic...@gmail.com wrote: Hi, The documentation http://docs.openstack.org/diablo/openstack-compute/admin/content/configuring-flat-dhcp-networking.html has the passage: The nova-network service will track leases and releases in the database so it knows if a VM instance has stopped properly configuring via DHCP Can someone briefly explain me what this means, if possible with rough pointers to code? I don't recall nova noticing when my VM actually stopped properly configuring via DHCP. -- Eugene Kirpichov http://www.linkedin.com/in/eugenekirpichov ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp -- Eugene Kirpichov http://www.linkedin.com/in/eugenekirpichov ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
Re: [Openstack] Question about Flat DHCP networking
Heh, that's an article by my colleague Piotr Siwczak, which I already read very thouroughly during the review process - but thanks ;) Actually I already found the answer to my question and added it to the documentation (when the codereview is completed) - it was related to nova-dhcpbridge script. On Mon, Aug 20, 2012 at 10:21 PM, hitesh wadekar hitesh.wade...@gmail.com wrote: May be this article will help. http://www.mirantis.com/blog/openstack-networking-flatmanager-and-flatdhcpmanager/ Thanks, Hitesh On Tue, Aug 21, 2012 at 3:16 AM, Eugene Kirpichov ekirpic...@gmail.com wrote: Hi, I found the code. It's a dnsmasq dhcp-script called by dnsmasq for various events, it resides in nova/bin/nova-dhcpbridge and it, among other things, calls release_fixed_ip when the lease expires. On Sat, Aug 18, 2012 at 1:01 AM, Aaron Rosen aro...@nicira.com wrote: Hi Eugene, I'm not sure I have not looked at the code (I'm guessing that it probably keeps the lease around since it knows the VM is still active instead of recycling the ip address). Though this is just a guess. You should look at the implementation details if you are curious. Aaron On Sat, Aug 18, 2012 at 3:48 AM, Eugene Kirpichov ekirpic...@gmail.com wrote: Thanks. And how will n-net react? 18.08.2012, в 0:43, Aaron Rosen aro...@nicira.com написал(а): Hi Eugene, This means that if a VM stops it's DHCP client that nova-network will be aware of this since the VM will not attempt to renew it's DHCP lease. Aaron On Fri, Aug 17, 2012 at 5:58 PM, Eugene Kirpichov ekirpic...@gmail.com wrote: Hi, The documentation http://docs.openstack.org/diablo/openstack-compute/admin/content/configuring-flat-dhcp-networking.html has the passage: The nova-network service will track leases and releases in the database so it knows if a VM instance has stopped properly configuring via DHCP Can someone briefly explain me what this means, if possible with rough pointers to code? I don't recall nova noticing when my VM actually stopped properly configuring via DHCP. -- Eugene Kirpichov http://www.linkedin.com/in/eugenekirpichov ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp -- Eugene Kirpichov http://www.linkedin.com/in/eugenekirpichov ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp -- Eugene Kirpichov http://www.linkedin.com/in/eugenekirpichov ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
Re: [Openstack] Question about Flat DHCP networking
Thanks. And how will n-net react? 18.08.2012, в 0:43, Aaron Rosen aro...@nicira.com написал(а): Hi Eugene, This means that if a VM stops it's DHCP client that nova-network will be aware of this since the VM will not attempt to renew it's DHCP lease. Aaron On Fri, Aug 17, 2012 at 5:58 PM, Eugene Kirpichov ekirpic...@gmail.com wrote: Hi, The documentation http://docs.openstack.org/diablo/openstack-compute/admin/content/configuring-flat-dhcp-networking.html has the passage: The nova-network service will track leases and releases in the database so it knows if a VM instance has stopped properly configuring via DHCP Can someone briefly explain me what this means, if possible with rough pointers to code? I don't recall nova noticing when my VM actually stopped properly configuring via DHCP. -- Eugene Kirpichov http://www.linkedin.com/in/eugenekirpichov ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
Re: [Openstack] Question about Flat DHCP networking
Hi Eugene, I'm not sure I have not looked at the code (I'm guessing that it probably keeps the lease around since it knows the VM is still active instead of recycling the ip address). Though this is just a guess. You should look at the implementation details if you are curious. Aaron On Sat, Aug 18, 2012 at 3:48 AM, Eugene Kirpichov ekirpic...@gmail.comwrote: Thanks. And how will n-net react? 18.08.2012, в 0:43, Aaron Rosen aro...@nicira.com написал(а): Hi Eugene, This means that if a VM stops it's DHCP client that nova-network will be aware of this since the VM will not attempt to renew it's DHCP lease. Aaron On Fri, Aug 17, 2012 at 5:58 PM, Eugene Kirpichov ekirpic...@gmail.comwrote: Hi, The documentation http://docs.openstack.org/diablo/openstack-compute/admin/content/configuring-flat-dhcp-networking.html has the passage: The nova-network service will track leases and releases in the database so it knows if a VM instance has stopped properly configuring via DHCP Can someone briefly explain me what this means, if possible with rough pointers to code? I don't recall nova noticing when my VM actually stopped properly configuring via DHCP. -- Eugene Kirpichov http://www.linkedin.com/in/eugenekirpichov ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
Re: [Openstack] Question about Flat DHCP networking
Hi Eugene, This means that if a VM stops it's DHCP client that nova-network will be aware of this since the VM will not attempt to renew it's DHCP lease. Aaron On Fri, Aug 17, 2012 at 5:58 PM, Eugene Kirpichov ekirpic...@gmail.comwrote: Hi, The documentation http://docs.openstack.org/diablo/openstack-compute/admin/content/configuring-flat-dhcp-networking.html has the passage: The nova-network service will track leases and releases in the database so it knows if a VM instance has stopped properly configuring via DHCP Can someone briefly explain me what this means, if possible with rough pointers to code? I don't recall nova noticing when my VM actually stopped properly configuring via DHCP. -- Eugene Kirpichov http://www.linkedin.com/in/eugenekirpichov ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
[Openstack] Question about Flat DHCP networking
Hi, The documentation http://docs.openstack.org/diablo/openstack-compute/admin/content/configuring-flat-dhcp-networking.html has the passage: The nova-network service will track leases and releases in the database so it knows if a VM instance has stopped properly configuring via DHCP Can someone briefly explain me what this means, if possible with rough pointers to code? I don't recall nova noticing when my VM actually stopped properly configuring via DHCP. -- Eugene Kirpichov http://www.linkedin.com/in/eugenekirpichov ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
