Re: How does a system VM get an IP address?
On 04/07/2014 12:33 AM, Rafael Weingartner wrote: Hi folks, I was wondering how a system vm gets an IP address. I know they are the first things that CS needs in order to start up others VMs, so when they start there is no virtual router to assign IP addresses via DHCP. Via a local virtio socket from the hypervisor in KVM mode. The VM boots and via that local serial socket it gets the IP-address. I also noticed that on the physical hosts with the VM.Start command CS sends some extra data that includes the IPs that the VM should get. However, I have no idea how it actually gets those parameters and set its IP. The management server sends this information to the KVM agent. User Instances get the IP address via DHCP from the VR, System VMs via the local serial socket. Wido Does anyone here know how it works?
Re: How does a system VM get an IP address?
Thanks man ;). By any chance if a system VM does not get its ip assigned, would there be any way to debug and check what is going on? I mean, if after it is running on the physical host it does respond on the IP that was assigned to it. On Mon, Apr 7, 2014 at 9:14 AM, Wido den Hollander w...@widodh.nl wrote: On 04/07/2014 12:33 AM, Rafael Weingartner wrote: Hi folks, I was wondering how a system vm gets an IP address. I know they are the first things that CS needs in order to start up others VMs, so when they start there is no virtual router to assign IP addresses via DHCP. Via a local virtio socket from the hypervisor in KVM mode. The VM boots and via that local serial socket it gets the IP-address. I also noticed that on the physical hosts with the VM.Start command CS sends some extra data that includes the IPs that the VM should get. However, I have no idea how it actually gets those parameters and set its IP. The management server sends this information to the KVM agent. User Instances get the IP address via DHCP from the VR, System VMs via the local serial socket. Wido Does anyone here know how it works? -- Rafael Weingärtner
Re: How does a system VM get an IP address?
On 04/07/2014 02:20 PM, Rafael Weingartner wrote: Thanks man ;). By any chance if a system VM does not get its ip assigned, would there be any way to debug and check what is going on? I mean, if after it is running on the physical host it does respond on the IP that was assigned to it. I say check the agent's log (set to debug!) and try to SSH into the SSVM with the cloudstack-ssh command. Wido On Mon, Apr 7, 2014 at 9:14 AM, Wido den Hollander w...@widodh.nl wrote: On 04/07/2014 12:33 AM, Rafael Weingartner wrote: Hi folks, I was wondering how a system vm gets an IP address. I know they are the first things that CS needs in order to start up others VMs, so when they start there is no virtual router to assign IP addresses via DHCP. Via a local virtio socket from the hypervisor in KVM mode. The VM boots and via that local serial socket it gets the IP-address. I also noticed that on the physical hosts with the VM.Start command CS sends some extra data that includes the IPs that the VM should get. However, I have no idea how it actually gets those parameters and set its IP. The management server sends this information to the KVM agent. User Instances get the IP address via DHCP from the VR, System VMs via the local serial socket. Wido Does anyone here know how it works?
Re: How does a system VM get an IP address?
By agent you mean CS management server? I am running CS 4.1.1. would the command cloudstack-ssh work, if the VM does not respond on its ip addresses? On Mon, Apr 7, 2014 at 10:01 AM, Wido den Hollander w...@widodh.nl wrote: On 04/07/2014 02:20 PM, Rafael Weingartner wrote: Thanks man ;). By any chance if a system VM does not get its ip assigned, would there be any way to debug and check what is going on? I mean, if after it is running on the physical host it does respond on the IP that was assigned to it. I say check the agent's log (set to debug!) and try to SSH into the SSVM with the cloudstack-ssh command. Wido On Mon, Apr 7, 2014 at 9:14 AM, Wido den Hollander w...@widodh.nl wrote: On 04/07/2014 12:33 AM, Rafael Weingartner wrote: Hi folks, I was wondering how a system vm gets an IP address. I know they are the first things that CS needs in order to start up others VMs, so when they start there is no virtual router to assign IP addresses via DHCP. Via a local virtio socket from the hypervisor in KVM mode. The VM boots and via that local serial socket it gets the IP-address. I also noticed that on the physical hosts with the VM.Start command CS sends some extra data that includes the IPs that the VM should get. However, I have no idea how it actually gets those parameters and set its IP. The management server sends this information to the KVM agent. User Instances get the IP address via DHCP from the VR, System VMs via the local serial socket. Wido Does anyone here know how it works? -- Rafael Weingärtner
Re: How does a system VM get an IP address?
On 04/07/2014 03:10 PM, Rafael Weingartner wrote: By agent you mean CS management server? I am running CS 4.1.1. No, in the KVM Agent. The hypervisor. /var/log/cloudstack/agent/agent.log would the command cloudstack-ssh work, if the VM does not respond on its ip addresses? It probably has it's local 169.X.X.X address, so that should work. Wido On Mon, Apr 7, 2014 at 10:01 AM, Wido den Hollander w...@widodh.nl wrote: On 04/07/2014 02:20 PM, Rafael Weingartner wrote: Thanks man ;). By any chance if a system VM does not get its ip assigned, would there be any way to debug and check what is going on? I mean, if after it is running on the physical host it does respond on the IP that was assigned to it. I say check the agent's log (set to debug!) and try to SSH into the SSVM with the cloudstack-ssh command. Wido On Mon, Apr 7, 2014 at 9:14 AM, Wido den Hollander w...@widodh.nl wrote: On 04/07/2014 12:33 AM, Rafael Weingartner wrote: Hi folks, I was wondering how a system vm gets an IP address. I know they are the first things that CS needs in order to start up others VMs, so when they start there is no virtual router to assign IP addresses via DHCP. Via a local virtio socket from the hypervisor in KVM mode. The VM boots and via that local serial socket it gets the IP-address. I also noticed that on the physical hosts with the VM.Start command CS sends some extra data that includes the IPs that the VM should get. However, I have no idea how it actually gets those parameters and set its IP. The management server sends this information to the KVM agent. User Instances get the IP address via DHCP from the VR, System VMs via the local serial socket. Wido Does anyone here know how it works?
Re: How does a system VM get an IP address?
I am using Xen server instead of KVM. I tried to ping the VM's internal address, however it does not respond. On Mon, Apr 7, 2014 at 10:13 AM, Wido den Hollander w...@widodh.nl wrote: On 04/07/2014 03:10 PM, Rafael Weingartner wrote: By agent you mean CS management server? I am running CS 4.1.1. No, in the KVM Agent. The hypervisor. /var/log/cloudstack/agent/agent.log would the command cloudstack-ssh work, if the VM does not respond on its ip addresses? It probably has it's local 169.X.X.X address, so that should work. Wido On Mon, Apr 7, 2014 at 10:01 AM, Wido den Hollander w...@widodh.nl wrote: On 04/07/2014 02:20 PM, Rafael Weingartner wrote: Thanks man ;). By any chance if a system VM does not get its ip assigned, would there be any way to debug and check what is going on? I mean, if after it is running on the physical host it does respond on the IP that was assigned to it. I say check the agent's log (set to debug!) and try to SSH into the SSVM with the cloudstack-ssh command. Wido On Mon, Apr 7, 2014 at 9:14 AM, Wido den Hollander w...@widodh.nl wrote: On 04/07/2014 12:33 AM, Rafael Weingartner wrote: Hi folks, I was wondering how a system vm gets an IP address. I know they are the first things that CS needs in order to start up others VMs, so when they start there is no virtual router to assign IP addresses via DHCP. Via a local virtio socket from the hypervisor in KVM mode. The VM boots and via that local serial socket it gets the IP-address. I also noticed that on the physical hosts with the VM.Start command CS sends some extra data that includes the IPs that the VM should get. However, I have no idea how it actually gets those parameters and set its IP. The management server sends this information to the KVM agent. User Instances get the IP address via DHCP from the VR, System VMs via the local serial socket. Wido Does anyone here know how it works? -- Rafael Weingärtner
Re: How does a system VM get an IP address?
When I open the VM console I get the following: Cleaning up temporary files modprobe: FATAL: Error inserting padlock_sha (/lib/modules/2.6.32-5-686-bigmem/kernel/drivers/crypto/padlock-sha.ko): No such device INIT: Sending processes the TERM signal Using makefile-style concurrent boot in runlevel 6. cat: /var/run/xe-daemon.pid: No such file or directory Stopping xe daemon: kill: usage: kill [-s sigspec | -n signum | -sigspec] pid | jobspec ... or kill -l [sigspec] Failed Stopping cloud-early-config...done. Stopping web server: apache2. done. All processes ended within 1 secondsdone. Stopping enhanced syslogd: rsyslogd already stoppedSaving the system clock. Cannot access the Hardware Clock via any known method. Use the --debug option to see the details of our search for an access method. Deconfiguring network interfaces...done. Cleaning up ifupdown Deactivating swap...done. Have anyone seen something like this? On Mon, Apr 7, 2014 at 10:15 AM, Rafael Weingartner rafaelweingart...@gmail.com wrote: I am using Xen server instead of KVM. I tried to ping the VM's internal address, however it does not respond. On Mon, Apr 7, 2014 at 10:13 AM, Wido den Hollander w...@widodh.nlwrote: On 04/07/2014 03:10 PM, Rafael Weingartner wrote: By agent you mean CS management server? I am running CS 4.1.1. No, in the KVM Agent. The hypervisor. /var/log/cloudstack/agent/agent.log would the command cloudstack-ssh work, if the VM does not respond on its ip addresses? It probably has it's local 169.X.X.X address, so that should work. Wido On Mon, Apr 7, 2014 at 10:01 AM, Wido den Hollander w...@widodh.nl wrote: On 04/07/2014 02:20 PM, Rafael Weingartner wrote: Thanks man ;). By any chance if a system VM does not get its ip assigned, would there be any way to debug and check what is going on? I mean, if after it is running on the physical host it does respond on the IP that was assigned to it. I say check the agent's log (set to debug!) and try to SSH into the SSVM with the cloudstack-ssh command. Wido On Mon, Apr 7, 2014 at 9:14 AM, Wido den Hollander w...@widodh.nl wrote: On 04/07/2014 12:33 AM, Rafael Weingartner wrote: Hi folks, I was wondering how a system vm gets an IP address. I know they are the first things that CS needs in order to start up others VMs, so when they start there is no virtual router to assign IP addresses via DHCP. Via a local virtio socket from the hypervisor in KVM mode. The VM boots and via that local serial socket it gets the IP-address. I also noticed that on the physical hosts with the VM.Start command CS sends some extra data that includes the IPs that the VM should get. However, I have no idea how it actually gets those parameters and set its IP. The management server sends this information to the KVM agent. User Instances get the IP address via DHCP from the VR, System VMs via the local serial socket. Wido Does anyone here know how it works? -- Rafael Weingärtner -- Rafael Weingärtner
How does a system VM get an IP address?
Hi folks, I was wondering how a system vm gets an IP address. I know they are the first things that CS needs in order to start up others VMs, so when they start there is no virtual router to assign IP addresses via DHCP. I also noticed that on the physical hosts with the VM.Start command CS sends some extra data that includes the IPs that the VM should get. However, I have no idea how it actually gets those parameters and set its IP. Does anyone here know how it works? -- Rafael Weingärtner
