[one-users] SCP bottleneck

Hello, We've a OpenNebula 2.0 cluster in SSH mode and when we deploy near simultaneously 3 or 4 MVs of about 1GB, sometimes some of the deployments fail because SSH/SCP connection timeouts. I've seen in diferent slides that is possible to make TM plugins based on parallel-ssh or

Re: [one-users] SCP bottleneck

Hi Luis, in Dortmund we have ~250 physical nodes and transfer at the moment the VM (8 GByte per Image) images via SSH to the nodes. Due to the load caused by the SSH transfers we limit the number of VMs deployed in parallel to two. Three or four VMs in parallel should also be possible, but

[one-users] ESX and OpenNebula

Hello, It looks like the ESX controls of the VMs under OpenNebula are not quite as sophisticated as other hypervisors like Xen or KVM. It seems that my control of an ESX VM is to create, power on, power off and migrate. Is this correct? Suspend and Resume appear to just do a shutdown and power

[one-users] Recover vm from wrong state pitfall

I tried the livemigrate option to onevm in my ESXi configuration and found that I got this error: Tue Sep 21 09:45:49 2010 [VMM][D]: Message received: MIGRATE FAILURE null Action not implemented. Now my VM is stuck in the migrate state and I can't run any of the onevm commands to recover it. Is

Re: [one-users] ESX and OpenNebula

Hi Tino, It looks as though it creates a snapshot and suspends properly but it doesn't resume and instead reverts the snapshot and powers on. Power On virtual machine XPDev-33 Completed root 9/21/2010 10:58:20 AM 9/21/2010 10:58:20 AM 9/21/2010 10:59:01 AM Revert snapshot XPDev-33 Completed

[one-users] qcow image problem

Hi i'm using OpenNebula 1.4 with libvirtd 0.7.5. I'm using an ubuntu-10.4-desktop installation for my VMs and i'm trying to use qcow2 file system for the images. I said try because when i submit the template i get fail status and error message. I installed ubuntu on a 4GB raw image and, to save

[one-users] unknown iso9660 file system

I'm using OpenNebula 1.4 with Ubuntu-10.4-desktop as VMs and i cant contextualize the vm. I conntect to the vm and i tried to mount it but i get mount error: unknown iso9660 file system. I know that maybe it isnt an OpenNebula issue but i hope someone else has the same problem! Could you maybe

[one-users] Interfacing with OpenNebula through Python, Ruby, Java

Hello, I noticed at the bottom of the documentation page under References there is a mention of the OCA API via Ruby and Java. I am just curious how somehow would use there apis.i.e is there any samples around using these interfaces? I also read on a mailer archive that the Java one is no

[one-users] ver 2.0 - what happened to kvm drivers?

Following the kvm install instructions for ver 2.0 , it refers to kvm drivers that are no longer being installed in the KVM src installation: http://www.opennebula.org/documentation:rel2.0:kvmg The driver consists of the following files: $ONE_LOCATION/lib/mads/one_vmm_kvm : Shell script

Re: [one-users] SCP bottleneck

Hi, I agree with Stefan, multiple scp's usually will require some tunning at the TM level to speed up things. Unfortunately this strongly depends on your setup. A kind of work around (also suggested by Stefan) is to limit the number of simultaneous deployments. This can be done with the new

[one-users] Problem suspending and resuming vms

Hi, I'm trying out opennebula with a one machine setup (KVM and SSH), and I can get vms running (both the example ttylinux image and a Ubuntu (vmbuilder-made) image). After creating the host and the virtual network, the first time I run a vm instance, it suspends as expected by onevm suspend 0,

[one-users] Problem deleting VMs in 2.0

Sometimes KVM process is not killed on host when we delete a VM from OpenNebula. It might be an issue with libvirt but I still think that there should be some kind of background activity checks performed anyways... Slava Yanson, CTO Killer Beaver, LLC