similar to: how to limit cpu usage for specified processes

Hello, Why is it so, that NetworkManager allows, and in several cases I've had, defaults to setting default route to several interfaces at the same time? Had my fair share of problems with how 172.17.62.something interface tries to ask for a DHCP lease from 193.something network. I know I could set never-default to the interfaces, but I shouldn't have to do it to every machine I had.

Hello, Today a virtual server under my administration ran out of disk space, so I had to get extra space to it.. while it was running, because it's an important web server without any kind of HA/Load Balancing (don't do that, kids). So what happened, is that after another administrator had extended the disk from VMWare, I tried to extend it from the OS side. Everything went well,

Hello, You could do it with Cgroups, if your specified processes run or can be made to run in group permissions. https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Resource_Management_Guide/sec-cpu_and_memory-use_case.html Regards, -- Sander Kuusemets University of Tartu, High Performance Computing, IT Specialist Skype: sander.kuusemets1 +372 737 5694 On

Hi, My piece of code ( C langage) uses cgroups to retrieve counters related to cpu and memory usage related to KVM guests hosted by the host where this code runs. I noticed that depending on the O.S. running on the host , these counters are not found at the same location : CentOS 7 : ls /sys/fs/cgroup/cpuacct/machine.slice/machine-qemu\\x2drhel6.0.scope/vcpu0 cgroup.clone_children

Hi, As told in "Control Groups Resource Management" libvirt page : Legacy cgroups layout Prior to libvirt 1.0.5, the cgroups layout created by libvirt was different from that described above, and did not allow for administrator customization. Libvirt used a fixed, 3-level hierarchy libvirt/{qemu,lxc}/$VMNAME which was rooted at the point in the hierarchy where libvirtd itself was

Hello, Simple question, I'd like to know whether it's possible to disable IPv6 with NetworkManager only (over command line)? I am aware of: * echo "net.ipv6.conf.all.disable_ipv6 = 1" > /etc/sysctl.d/disableipv6.conf * sysctl -p But doing it with NM would be way easier to remember. Thanks! -- Sander Kuusemets University of Tartu, High Performance Computing, IT

Thanks, first, to everyone who''s asked and answered questions on this list, and to the creators of RSpec - it is all very helpful. I''ve searched the mailing list, and had a couple 2hr googling sessions that didn''t help me find an answer. I''ve run into a problem getting my first non-trivial view spec to run. I get an error when trying to generate a link_to()

I can boot from DVD. I deleted kernel. Thought it will fix the problem. Now I can see rescue menu only. Kernel source is there. How to get back kernel. On Friday, November 20, 2015, Arun Khan <knura9 at gmail.com> wrote: > On Fri, Nov 20, 2015 at 2:18 PM, Siva Prasad Nath > <shivaprasadnath21 at gmail.com <javascript:;>> wrote: > > Hi, > > My server not able

Hello, I'm trying to use libvirt as a non-root user to obtain statistics on the CPU usage by VMs using the Python API. I'm performing basically the following steps: import libvirt conn = libvirt.openReadOnly(None) dom = conn.lookupByUUIDString('268e38ea-1bc7-41e4-c19e-8eff682e58e4') dom.getCPUStats(True, 0) However, they result in the following error: libvir: QEMU Driver

Adding Mohit who is experimenting with cgroups has found some way to restrict glustershd's CPU usage using cgroups. Mohit maybe you want to share the steps we need to follow to apply cgroups only to glustershd. Thanks. Ravi On 08/01/2017 03:46 PM, Alexey Zakurin wrote: > Hi, community > > I have a large distributed-replicated Glusterfs volume, that contains > few hundreds

Hi, community I have a large distributed-replicated Glusterfs volume, that contains few hundreds VM's images. Between servers 20Gb/sec link. When I start some operations like healing or removing, storage performance becomes too low for a few days and server load becomes like this: 13:06:32 up 13 days, 20:02, 3 users, load average: 43.62, 31.75, 23.53. Is it possible to set limit on

I did not do pvresize because neither "pvs" or "pvdisplay" reported to have free space. After reboot they did, after which doing pvresize worked successfully. Sander Kuusemets University of Tartu, High Performance Computing, IT Specialist Skype: sander.kuusemets1 +372 737 5694 On 24/12/15 09:17, Gordon Messmer wrote: > On 12/21/2015 11:15 AM, Sander Kuusemets wrote:

I have a RHEL6 that hosts many kvm virtual machines. It has been working fine for a couple years. I apply errata updates about once a week. In the last couple weeks, I've ran into a bug where the virtual machines start failing to start with a cgroup error message. If I reboot the host (very disruptive) then things start working normaly for a few days. Can I configure qemu/libvirt not to use

Hi, My server not able to boot up. It is hanging after few times. How to repair boot system? I am trying to use grub2-install. Is it necessary to install grub2 on boot device? Please help. Thanks in advance. -- Shiva Prasad Nath 92981134

Am 05.06.2015 um 00:23 schrieb Dennis Jacobfeuerborn: > If I'd have to venture a guess then I'd say there are memory pages that > are never touched by any processes and as a result the algorithm has > decided that it's more effective to swap out these pages to disk and use > the freed ram for the page-cache. That's my guess too. [...] > impact. If however these

Dear list, I am building a Arch server on my Arch box. My tools are QEMU/KVM and libvirt to manage the guest, systemd as system manager. I am looking at implementing the Linux Control Groups facilities for resource management. Even after long hours of reading, I am not quite sure about how to deal with the cgroups facilities. First, do I really need to care about all that, or libvirt and

Thanks. How to create a live boot disk? On Friday, November 20, 2015, Sander Kuusemets <sander.kuusemets at ut.ee> wrote: > You have to boot from a live boot disk, chroot into your old system's > filesystem, mount all partitions properly and then download and rebuild the > kernel and grub config. You can try just "yum install kernel" aswell, but > I'm not sure

How about disabling network manager and using the static ip addresses? Eero 17.3.2016 9.05 ip. "Sander Kuusemets" <sander.kuusemets at ut.ee> kirjoitti: > Hello, > > Why is it so, that NetworkManager allows, and in several cases I've had, > defaults to setting default route to several interfaces at the same time? > > Had my fair share of problems with how

Hi , I was previously using xen and currently moved to KVM. I am using libvirt to manage these VMs. In den's credit scheduler , I had the ability to set a cap on the cpu usage for a VM. But I was not able to find a similar substitute in KVM. I find that we can use cgroups to provide shares for VM but that will be more like weight based and it doesn't set a hard cap for that VM. I tried

Hello! A problem: Samba (2.0) can log in to a Win31 share (I get a prompt), but after that I obtain smb: \> ls Error: Looping in FIND_NEXT?? ERRSRV - ERRerror (Non-specific error code.) listing \* 51250 blocks of size 8192. 26860 blocks available If I try to get some file that exists, I obtain smb: \> get Anu.doc Error opening local file Anu.doc What could be the