OpenVZ is an open source virtualization technology for Linux which utilities containers to run separate Linux based operating systems on a single machine. OpenVZ is typically used as it touts a low overhead, of around 1-3% of CPU, compared to other virtualization technologies.

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Java VM problem in OpenVZ

I bought a vps for hosting my java needs. But I can't run java on it. Everything about java is correctly installed but when I try to run java ("java -version" forexample) I get this error : Error ...
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1answer
523 views

Anyone using Archipel in production for managing virtual machines?

I am getting ready to deploy a new server for my company. We intend to use virtualization mainly for security but also to help with versioning and other issues. We have decided to use openvz. Now I ...
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1answer
468 views

OpenVZ - vzdev kernel module issue

I am setting up a Centos 6.3 minimal server with openvz that replicates to another machine using DRBD. I want all openvz data/files to be kept in a single /vz directory which is an LVM that I am ...
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1answer
734 views

Centos 6.3 DRBD / OpenVZ kernel/userland issue

When I start my Centos 6.3 server's drbd service I get the following error: Starting DRBD resources: DRBD module version: 8.3.13 userland version: 8.4.2 preferably kernel and userland versions ...
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1answer
830 views

Setting up bridging for Qemu and routing for OpenVZ (venet) with multiple subnets on Debian Linux

So i've been searching the past couple days trying to figure out the best way to achieve this but still can't get it figured out. I have a debian server setup running Proxmox to host OpenVZ and Qemu ...
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1answer
277 views

Proxmox server with just one public IP

Is it possible to host a proxmox server with openvz containers NATed to the public IP which hosts the Proxmox server ? I have gone through the proxmox feature list but I am somehow puzzled by the ...
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1answer
533 views

GRUB can't configure on upgraded Ubuntu OpenVZ VPS

I upgraded an OpenVZ VPS from an older Ubuntu release to 12.04LTS using the do-release-upgrade command. Ever since, all of my apt-get runs look something like this: $ sudo apt-get upgrade Reading ...
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1answer
283 views

openvz dual nic setup from scratch

I have a openvz server that has 2 nics I need 1 for ethernet and the other explisitly for nfs traffic. eth0 goes to the lan/internet currently doesnt have ipv6 but will be getting a static ip soon. ...
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3answers
3k views

is it possible to check CPU and RAM usage of the OpenVZ *host* machine from within a VM?

I have purchased an OpenVZ VPS from one of the hundreds of internet hosting companies. I dont pay much for it, but lately performance has been terrible. They are obviously overselling, but I am ...
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0answers
952 views

Enabling IPv6 with OpenVZ using Proxmox 2.2

I'm trying to enable IPv6 on my Debian nodes (OpenVZ) using venet; my host is under Proxmox 2.2 (kernel 2.6.32-16-pve), and it seems the routing fails. My host correctly pings all my nodes; all my ...
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2answers
750 views

running mongodb with openvz

Has anyone had any luck getting mongodb working on openvz? Was looking for some tips, tricks, hacks to get it from running out of memory I am running on centos on media temple and the servers just ...
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5answers
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What is the best practice to backup OpenVZ containters?

I'm running Linux server with OpenVZ containers. I back up data with rdiff-backup in two steps (to minimalize downtime). First step is on live containter, and second step is on suspended container. ...
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1answer
778 views

CentOS 6 and Sun/Oracle Java Issue [duplicate]

Possible Duplicate: Linux out of memory on VPS I have a OpenVZ VPS running CentOS 6.3 64 bit and when I try to install JRE 7 64bit using the command: rpm -Uvh java.rpm It gives me this ...
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2answers
2k views

how to drop_caches in OpenVZ centos6 container

I have tried sudo sh -c 'echo 3 > /proc/sys/vm/drop_caches' sudo echo 3 > /proc/sys/vm/drop_caches echo 3 > /proc/sys/vm/drop_caches echo 3 | sudo tee /proc/sys/vm/drop_caches and a ...
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1answer
851 views

PPTP installation on CentOS 5 not working (Kernel support for PPP?)

I am trying to get PPTP installation up and running on my VPS. I have followed various guides, however, I am unable to connect to the VPN once it’s setup. I checked my VPS’ /var/log/messages and I ...
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1answer
2k views

Jenkins (JVM) crashes after few minutes after start

Host OS: OpenVZ host Guest OS: Debian 6.0 minimal Java: java6 sun Servlet container: Winstone Jenkins for debian: http://pkg.jenkins-ci.org/debian/ Jenkins version: 1.449 uname -a: Linux hostname ...
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1answer
81 views

How do I skip the installation of grub in my VPS?

I am upgrading Ubuntu 11.04 to Ubuntu 11.10 and it asks me to install grub, I do not want to do so as I am in a VPS, how can I skip installation of grub ? If I close the session, then it shows ...
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1answer
2k views

Loading Raid drivers during Proxmox VE installation

I'm using Hardware raid on my Proxmox VE installation and it doesn't recognize my Raid array, so how can I load raid drivers during installation? This is the driver reseller provided: ...
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1answer
461 views

Changing time or offsetting it in OpenVZ contained server

I am trying to run a VPS, a Debian box contained in an OpenVZ container. Obviously, I cannot use time --set or any such command, as the time must be set via the parent node. The owner of the parent ...
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1answer
88 views

One-to-one mapping of port range from Hardware Node to VZ Containers with iptables

At anytime I have about 3-4 VZ containers on a server(the Hardware Node on CentOS6). I have webservers, ssh, mail, etc running on the different Containers. From another host in the network, they are ...
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1answer
485 views

Why isn't OpenVZ in the Linux kernel by default?

Does anyone know why OpenVZ hasn't been merged into the official Linux kernel? Right now you have to download a special kernel from openvz.org
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4answers
5k views

OpenVZ multiple networks on CTs

I have Hardware Node (HN) which has 2 physical interfaces (eth0, eth1). I'm playing with OpenVZ and want to let my containers (CTs) have access to both of those interfaces. I'm using basic ...
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1answer
469 views

Is it possible to disable or tune filesystem cache sharing for OpenVZ?

For OpenVZ, an implementation of container-based virtualization, it seems that host and all guests are sharing the filesystem cache. This sounds paradoxical when talking about virtualization, but this ...
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1answer
692 views

Issue with kernel boot [OVH SERVER]

Trying to install OpenVZ kernel on Centos 6.3, Yes my kernel is installed i can see it in the /boot folder, yes it is Rhel6 and yes it is all up to date, i checked this with yum update. My issue ...
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2answers
6k views

How do I get my Proxmox VM to access the internet without a public IP address

I would like to create a proxmox vm and have that vm be able to ping/access external websites without having to assign a public ip to it. How do I do this? The VM is running centos 6
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1answer
345 views

Apache2 doesn't start automatically in an OpenVZ container using Debian 6

I have a OpenVZ container running Debian 6 on my server. After every restart of the container I have to manually start the Apache2 web server using its init script. In the error log I can't find any ...
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2answers
2k views

Screen - No more PTYs - Cannot start screen's on Debian VPS

I've gotten a newly imaged Debian 6 32 bit VPS. While configuring I tried to test screen as a number of my scripts run using it. Root has no problem running screen. But of course this is ...
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1answer
180 views

OpenVZ VMs redirect to main node?

I have a new fresh CentOs 6 machine and have SoulsVM and OpenVz installed on it. When I create VPS it came online with no problem. When I try to SSH to the VPS it gave me "Access Denied." I reset ...
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1answer
427 views

Virtualization on Atom D2700

Will paravirtualization work fine on Atom D2700 with 4 Gb RAM? Just several ubuntu/debian (maybe others) VM's with not heavy loads (LAMP for tests, torrent client, file server for PC and Mac etc.). ...
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1answer
392 views

How to mount together a filesystem tree for use in openvz?

I want my vm to use a filesystem tree consisting of multiple filesystem mounted together: mount <root-path> /var/lib/vz/private/<id>/ mount <home-path> ...
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1answer
2k views

How to kill an openvz container?

An openvz container can be stopped with vzctl stop <id> , but this needs the cooperation from the init inside the container. In case a container is compromised a way is needed to stop the ...
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2answers
793 views

yum update failed

I have problem doing a yum update on my OpenVZ VPS. I get this error message: (56/69): glibc-devel-2.5-81.el5_8.7.x86_64.rpm | 2.4 MB 00:00 (57/69): ...
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1answer
517 views

CentOS OpenVZ fail to boot after kernel update

After upgrading to latest OpenVZ kernel CentOS server won't boot. When i try go boot the latest kernel server is stuck at this point: (note that images are taken from virtual kvm) ...
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1answer
496 views

OpenVZ kernel panic

I recently installed OpenVZ on my VMWare box (To do some testing) and I get the following: https://www.dropbox.com/s/p38btkv5j84bvsh/Capture.JPG the GRUB config is as follows: # grub.conf generated ...
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1answer
266 views

No SSH password prompt

I'm trying to reach Centos based VPS in OpenVZ. User prompt goes well, but after I type username, press Enter no password prompt occurs and server drops connection by timeout in a few seconds. ...
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1answer
518 views

PTY allocation request failed on channel 0 - gentoo in openvz

I keep getting PTY allocation request failed on channel 0 once I hit "some" limit, upon trying to connect with ssh or locally with vzctl enter 10x I have multiple developers accessing same test ...
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0answers
514 views

Replacing TightVNC with alternate client (CONNECT parameter)

I am in the process of reverse engineering an existing system in an attempt to replace their existing TightVNC applet with something else (hopefully NoVNC if at all possible). So far, here is what I ...
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2answers
1k views

How do I rebuild a VM using Proxmox control panel?

I'm using Proxmox Virtual Enviroment (v 2.1) to manage my openvz virtual machines. Sometimes I want to rebuild a virtual machine with other openvz container template, but I couldn't find any tools in ...
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1answer
362 views

Using virsh to control KVM and openvz

On different servers I'm using virsh to manage openvz containers or KVM guests. No I have a server with both, KVM and openvz installed and would like to controll both with virsh. I can't figure out ...
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1answer
98 views

Installing OpenVZ inside debian 6.0?

I have a little problem. Basically I have dealt with a VPS for quite a while and decided to make the jump to a more powerful dedicated machine, and then split that into various VPS' for different ...
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0answers
483 views

OpenVZ High container load average, < 1 host load

This is something that has been confusing me for a while and I honestly can't figure out what is going on. I run several OpenVZ host servers for my own personal use and there is this one particular ...
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1answer
1k views

How to run fsck on a simfs filesystem under openvz

How do you do a fsck on a simfs filesystem under OpenVZ? You're supposed to not run fsck on a mounted FS. Can you just fsck the image (/vz/private/100 or whatever it's called)? Sorry I can't tag ...
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1answer
395 views

Is there a way to disable burstable RAM within OpenVZ?

I've had a few pretty idle VPS under OpenVZ, and while I generally don't reach the guaranteed RAM, it bothers me that my VPS "thinks" it has more RAM than it actually does. After all, exceeding the ...
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1answer
208 views

Is there any advantage of using OpenVZ on a dedicated server for single-use?

We are leasing a dedicated server where we plan to host an XMPP server. Currently, Debian is installed. Our current requirement is this will only be the production box; however, this could change if ...
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1answer
597 views

OpenVZ tells me: hostname: the specified hostname is invalid on boot of the VE

I’m using Proxmox 2.1, which is based on Debian 6, for my OpenVZ installation. Which shouldn’t matter but I wanted to mention it before I begin with my problem. I imported several VEs into my newly ...
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1answer
55 views

Is there any way to know when resources in user_beancounters hit barrier

When I look at /proc/user_beancounters there is some failcnt on kmemsize and tcpsndbbuf. Is there anyway to know when they got incremented? Do we always need to track the count and display in graph or ...
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3answers
921 views

size lvm snapshot

I'm configuring an openvz node and would like to use lvm snapshot for backup (I do remote backup too). The snapshot size is the same that data in the backuped partition ? If I have a logical volume ...
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1answer
3k views

Mount Windows share via CIFS in CentOS not working (but smbclient does)

I'm a bit frustrated...I'm trying to mount a windows share via CIFS in CentOS 6.3, but it's not working: mount -v -t cifs -o credentials=/data/conf/credentials/fileserver //10.0.1.200/projects ...
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3answers
2k views

Karmic iptables missing kernel moduyles on OpenVZ container

After an unsuccessful p2v migration of my Ubuntu server to an OpenVZ container which I am stack with I thought I would give a try to a reinstall based on a clean OpenVZ template for Ubuntu 9.10 (from ...
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2answers
1k views

Why is my cron daemon is being killed every few minutes?

As of about a week ago, my cron daemon refuses to stay running. I'm using Debian 6 x64 on an OpenVZ virtual machine. Running something like pgrep cron shows that the daemon isn't running. I start the ...