Re: [Ganglia-general] Problem displaying Virtual Machine data with hsflowd and ganglia 3.2.0 in an Openstack Compute node.

On Aug 31, 2011, at 8:15 AM, Emanuele Verga wrote: Hi Neil, thanks a lot for the help! I verified libvirt version, it's 0.8.8 I've dowloaded and compiled hsflowd revision 227: now ganglia correctly receives and processes statistics VM Bytes Written and VM Writes.

Re: [Ganglia-general] Problem displaying Virtual Machine data with hsflowd and ganglia 3.2.0 in an Openstack Compute node.

Hi Neil, thanks a lot for the help! I verified libvirt version, it's 0.8.8 I've dowloaded and compiled hsflowd revision 227: now ganglia correctly receives and processes statistics VM Bytes Written and VM Writes. (http://imageshack.us/f/846/vmstats.png/) Other disk statistics for VM ( VM Bytes

Re: [Ganglia-general] Problem displaying Virtual Machine data with hsflowd and ganglia 3.2.0 in an Openstack Compute node.

Hi, I downloaded and installe hsflowd trunk revision 226 but using hsflowd I keep seeing virStorageLookupByPath errors, and VM disk statistics aren't displayed. Do I need to tell hsflowd explicitly to use target=vda call? If yes, how? Thanks in advance, Emanuele 2011/8/25 Emanuele Verga

Re: [Ganglia-general] Problem displaying Virtual Machine data with hsflowd and ganglia 3.2.0 in an Openstack Compute node.

Sorry, the failure of virStorageLookupByPath() was preventing virDomainBlockStats() from being attempted. I checked in a fix for this, and also code to try the newer virDomainGetBlockInfo() call as a fallback should virStorageLookupByPath() fail. This call only came in with libvirt version

Re: [Ganglia-general] Problem displaying Virtual Machine data with hsflowd and ganglia 3.2.0 in an Openstack Compute node.

Hi Neil, Yes that's possible, the problem is Nova places each image in a separate folder (/var/lib/nova/instance/INSTANCENAME/), so we would have to create a new pool with the corresponding path each time a new instance is created, and if we start to add more servers it quicly becomes

Re: [Ganglia-general] Problem displaying Virtual Machine data with hsflowd and ganglia 3.2.0 in an Openstack Compute node.

On Aug 18, 2011, at 1:35 AM, Emanuele Verga wrote: Ok, I tried linking one of the disk files to the default storage pool folder and it actually detected the linked volume in libvirt: After issuing a virsh pool-refresh default the disk was correctly detected and reported as a volume by

Re: [Ganglia-general] Problem displaying Virtual Machine data with hsflowd and ganglia 3.2.0 in an Openstack Compute node.

Ok, I tried linking one of the disk files to the default storage pool folder and it actually detected the linked volume in libvirt: After issuing a *virsh pool-refresh default *the disk was correctly detected and reported as a volume by *virsh vol-list default, *but there is a problem: The

Re: [Ganglia-general] Problem displaying Virtual Machine data with hsflowd and ganglia 3.2.0 in an Openstack Compute node.

Hi Neil, thanks for the suggestion. I tried to do it. After recompiling hsflowd i checked the files it had open and it showed: hsflowd 30019 nobody mem REG 251,3 84728 927248 /usr/lib/libxenctrl.so.3.2.0 hsflowd 30019 nobody mem REG

Re: [Ganglia-general] Problem displaying Virtual Machine data with hsflowd and ganglia 3.2.0 in an Openstack Compute node.

try having soft links using ln command, may or may not work though :) ln -s On Wed, Aug 17, 2011 at 4:17 PM, Emanuele Verga verga.emanu...@gmail.com wrote: Hi Neil, thanks for the suggestion. I tried to do it. After recompiling hsflowd i checked the files it had open and it showed: hsflowd  

Re: [Ganglia-general] Problem displaying Virtual Machine data with hsflowd and ganglia 3.2.0 in an Openstack Compute node.

I don't think the soft-links will work, but try this: 1) go back to compiling hsflowd for libvirt. 2) using virt-manager or equivalent, tell it about the storage pool of type filesystem directory at /var/lib/nova/instances. See details here: http://virt-manager.org/page/StorageManagement (To

[Ganglia-general] Problem displaying Virtual Machine data with hsflowd and ganglia 3.2.0 in an Openstack Compute node.

Hi, we have a problem with the following installation: we have a system that’s a compute node in an Openstack test installation. Now on this machine we decided to install Ganglia, to check it’s monitoring capabilities regarding virtual machines hosted on that node by Openstack. We then

Re: [Ganglia-general] Problem displaying Virtual Machine data with hsflowd and ganglia 3.2.0 in an Openstack Compute node.

Hello, On an OpenStack node you may be able to use libxenstore instead of libvirt. You'll need to recompile hsflowd to try this. Looking at trunk/src/Linux/Makefile it appears to look for libvirt first, but you can override that by compiling hsflowd like this: make clean make LIBVIRT=no