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Hi, we still have this Problem and this is a very big Problem for us. Whenever a proxmox operation like starting or migrating a vm fails (we had some failures because of invalid ssh keys) Proxmox leaves the whole Filesystem of our NFS Server locked forever. So after the failure it is...

Today we again had our "mysterious nfs dedlock Problem" on a Proxmox 2.1 Cluster We have vm images running on an NFS Server (nexenta, nfs4) We tried to live-migrate a machine from proxmox server a to proxmox server b vie the webinterface Live Migration failed because of an old, wrong key for...

Hi, I tried to live migrate a vm from one proxmox 2.1 host to another in a cluster The migration failed because there was an old ssh key for the proxmox server in known_hosts I have now the following processes on the servers, how can I clean up ? Server 1: san03:~# ps ax|grep 146 22620 ...

No, the NFS server was ok. After rebooting all Proxmox hosts the Machine could startup again. The Problem looked like a "wild proxmox task that did never finish", maybe the task of starting vncproxy for that vm My question is: How can I manage proxmox tasks, e.g. delete all running tasks in proxmox.

We had on Saturday the case that a virtual Machine could not be started in a proxmox 2.1 cluster of 3 Machines. We debugged and it looked like the vm image on an nfs server was blocked by another proxmox host in the cluster. It looked a bit as if a migration failed and vncproxy was running on...

To answer the question myself: I just had to umount -f /etc/pve before mounting, that was all

Hi, I manually edited /etc/cluster/cluster.conf on a node and increased version number to get the cluster working. After that I issued /etc/init.d/pve-cluster restart to remount /etc/pve An error appeared saying something like "local cluster.conf version newer" and since that time I cannot...

Hi, on Saturday we had a proxmox 1.9 server becoming inresponsive due to CVE-2011-4622 . Is there a fix for proxmox 1.9 ? What would be the best way to fix it ? Our logs shopw this: san06:/var/log# cat /tmp/1|less san06:/var/log# cat /tmp/1 Apr 21 11:33:33 san06 kernel: BUG: unable to...

Are you sure you really want kvm block-level migration ? When we tested kvm block-device migration last time it has blown up all thin-provisioned to its full size. Lets say we have a vm with a hd of 200 GB virtual space. Only 20 Gigs are in use. Before block migration the vm disk file was 20...

Hi, I just found the following in my pveam.log (never looked there before). So my proxmox seems to contact download.proxmox.com every morning ? What is it doing there ? Jun 10 06:25:03 starting update [GNUPG:] IMPORT_OK 0 9ABD7E02AD243AD3C2FBBCCCB0C1CC225CAC72FE [GNUPG:] IMPORT_RES 1 0 0 0 1...

The Adaptec unified raid-controllers really rock, terrible fast and absolutely reliable. We use eg: Adaptec RAID 51645

Hmm, I think using a swap-file on the current partition is much easier and about as "fast" as a swap partition. Just do: dd if=/dev/zero of=/swapfile bs=1 count=0 seek=20G and then: mkswap /swapfile and swapon /swapfile (dont forget to add swapfile to your fstab). If you expect noticeable...

Thanks mmenaz, that was really easy:-)

Hi, is there a trick to make proxmox pass the kvm option -no-acpi to a special kvm-guest when starting it ? Maybe some "options" tweak in the vmid.conf file ? Thanks ado

I agree that one should have good reasons to use fuse-filesystems for virtual machines. In case of zfs there are a good reasons to use it in some use cases. For example you can snapshot your vm, transfer the big file to another proxmox machine which might take hours with large images on...

Aah, found the reason: fuse-filesystems do not support O_DIRECT Maybe proxmox can check this before magically adding cache=none to the options This would have saved me some time

Hi, I have upgraded Proxmox to 1.8 which adds cache=none to the kvm options for raw disks. However: If I start a vm whose image is on a zfs-fuse filesystem the vm wont start. I debugged it so far: kvm -drive file=/tank/images/136/vm-136-disk-1.raw,if=virtio,index=0,cache=none,boot=on gives...

Hi, an old bug still exists in proxmox 1.7 : /usr/sbin/ksmtuned contains: awk '/^(MemFree|Buffers|MemCached):/ {free += $2}; END {print free}' MemCached does not exist, it should write Cached This leads ksmtuned to assume too low memory and this leads to high cpu usage the web is full of this...

I bet the high load comes from KSM. 2.6.35 has ksm enabled by default Please run /etc/init.d/ksmtuned stop and then do: echo "0 > /sys/kernel/mm/ksm/run

Yes, you have to: 1) overwrite free space with zeores, e.g. dd if=/dev/zero of=/bigzerofile bs=4k 2) qemu-img convert I did this lots of times and I dont think there is a better way of shrinking qcow2 files