- Users - libvirt List Archives

[libvirt-users] libvirtd using 11GB
by Alex Leonhardt 20 May '13

20 May '13

Hi All, Am new to this list, and have asked in #ovirt / ovirt-users list and they pointed me to here ... I've seen libvirtd using ~11 GB of resident memory after the host has been running for about 60+ days with about 40 VMs running on it. The versions I'm currently running are : libvirt.x86_64 0.9.10-21.el6_3.7 libvirt-client.x86_64 0.9.10-21.el6_3.7 libvirt-lock-sanlock.x86_64 libvirt-python.x86_64 0.9.10-21.el6_3.7 I know I can just restart libvirtd and "all should be fine" (and hopefully I'll regain the 11GB of memory) - however, is there an updated version that maybe fixes a memory leak ?? Thanks in advance, Alex -- | RHCE | Sen Sys Engineer / Platform Architect | www.vcore.co | www.vsearchcloud.com |

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[libvirt-users] How to see the console output of an EXE session?
by Jon Taylor 20 May '13

20 May '13

Hi, I am having trouble with a libvirt lxc EXE container which is starting another EXE container itself, and I need to see the console output of (hopefully) both containers. How do I do this? I have searched the net a lot, but the answers I found were either out of date, wrong or didn't work. Has anyone else here done this? Jon

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[libvirt-users] nova compute libvirt driver and libvirt compatibility
by arvind viswanathan 17 May '13

17 May '13

Hi, >From my reading about nova interface to libvirt, I came to know it uses a libvirt driver module to communicate with host libvirt. I was wondering if there are any compatibility matrix available between the nova libvirt driver and the libvirt installed in the host ? Thanks Arvind

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[libvirt-users] connect to esx: Could not find HostSystem with name '(null)'
by Dimitri Nilsen 16 May '13

16 May '13

Hi all, I am trying to connect to esx vi libvirt 0.10.2. virsh # connect esx://hostname?no_verify=1&auto_answer=1 error: Failed to connect to the hypervisor error: internal error Could not find HostSystem with name '(null)' could you give me a hint, what could be a reason for that problem in a debug log of libvirt I see: 14447: debug : virAuthGetConfigFilePath:77 : Checking for readability of '/root/.libvirt/auth.conf' 14447: debug : virAuthGetConfigFilePath:86 : Checking for readability of '/etc/libvirt/auth.conf' 14447: debug : virAuthGetConfigFilePath:95 : Using auth file '(null)' 14447: error : esxVI_LookupManagedObjectHelper:4854 : internal error Could not find HostSystem with name '(null)' 14447: debug : do_open:1180 : driver 1 ESX returned ERROR Regards Dimitri

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[libvirt-users] Getting libvirt Error when setting IO tune read_bytes_sec value using libvirt API virDomainSetBlockIotune
by vikrant verma 16 May '13

16 May '13

Hi All, I am setting the value for "read_bytes_sec" using the following API code virDomainSetBlockIoTune(dom, "/mnt/tmpsdb/FileVM1", parainfoPtr, nparams, 2); I am succesfully able to set this value and i can read it back using the API virDomainGetBlockIoTune(dom,"/mnt/tmpsdb/FileVM1",parainfoPtr,&nparams,2); But after setting this value when i shutdown my VM and start it again I am getting following error - ibvirtError: internal error Process exited while reading console log output: qemu-system-x86_64: -drive file=/mnt/tmpsdb/FileVM1,if=none,id=drive-ide0-1-1,format=raw,bps_rd=1048576: Invalid parameter 'bps_rd' Note - when i see dumpxml of the VM following lines are got added after setting the iotunes for read_bytes_sec <iotune> <read_bytes_sec>1048576</read_bytes_sec> </iotune> Please help me. Also i wanted to know whether we can set block IO tune for a VM using the above API. Is it same as the IO throttling provided by cgroup?

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[libvirt-users] libvir: QEMU Driver error : internal error Cannot find suitable emulator for armv7l
by Clark Laughlin 15 May '13

15 May '13

Hello, I am trying to run OpenStack (via devstack) on an Arndale board using Linaro's 13.04 release. I am getting a libvirt error that I was hoping someone could provide some more detail about: libvir: QEMU Driver error : internal error Cannot find suitable emulator for armv7l If this is coming from libvirt, what is it looking for for a suitable emulator? Or, is this something I need to search starting with QEMU? Thank you in advance, Clark L

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[libvirt-users] Pre-requisites to use Java bindings with QEMU
by Lior Vernia 15 May '13

15 May '13

Hello everyone, I've been reading through the articles on the website trying to understand what's needed to use the libvirt Java bindings with a QEMU hypervisor, but still have some uncertainties/questions: 1. It is my understanding that libvirtd has to be running on the machine hosting the hypervisor. Correct? 2. For libvirtd to communicate with QEMU, QEMU has to be installed on the machine hosting the hypervisor. Correct? I guess what I'm really asking is whether the libvirt QEMU "driver" includes the QEMU source code, or rather communicates with pre-installed executables. 3. Assuming the answer to the two former questions is "yes", is there a way to bypass libvirtd if the machine hosting the hypervisor is the same as the one running the Java code? I'm asking because running libvirtd would require privileged permissions, whereas QEMU itself can run with normal user permissions. Is that a price I have to pay for the uniform interface that libvirt presents? Yours, Lior.

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[libvirt-users] Designing libvirt client
by arvind viswanathan 15 May '13

15 May '13

Hi, I have a VMM application using a homegrown client for communicating with hypervisor. I am planning to migrate to libvirt because of the blocking nature of the calls. After going over the architecture, I would like to have a few doubts clarified 1) Should my application be necessarily multi-threaded in order to make use of the non-blocking calls in libvirt. [Are overlapping methods mainly used by multithreaded clients]. 2) I was wondering if there was any way to provide a callback along with the methods to achieve non-blocking.[My application has event library so it can receive events] 3) Is the libvirt RPC client multi-threaded. [i.e., does it internally use multiple threads to dispatch requests to server and return response to the application] I can provide more information, if its not helpful. Thanks Arvind

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[libvirt-users] convert only partition instead of whole disk (virt-p2v)
by hamelj＠web.de 15 May '13

15 May '13

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[libvirt-users] Error while compiling libvirt-1.0.5
by Javi Legido 14 May '13

14 May '13

Hi all. I'm trying to compile libvirt-1.0.5 on a Debian 6.0, but I get an error after "./configure" and then "make". Info: ... CCLD libvirt_parthelper libvirt_parthelper-parthelper.o: In function `main': /usr/local/src/libvirt-1.0.5/src/storage/parthelper.c:102: undefined reference to `ped_device_get' /usr/local/src/libvirt-1.0.5/src/storage/parthelper.c:116: undefined reference to `ped_disk_new' /usr/local/src/libvirt-1.0.5/src/storage/parthelper.c:122: undefined reference to `ped_disk_next_partition' /usr/local/src/libvirt-1.0.5/src/storage/parthelper.c:174: undefined reference to `ped_disk_next_partition' collect2: ld returned 1 exit status make[3]: *** [libvirt_parthelper] Error 1 make[3]: Leaving directory `/usr/local/src/libvirt-1.0.5/src' make[2]: *** [all] Error 2 make[2]: Leaving directory `/usr/local/src/libvirt-1.0.5/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/usr/local/src/libvirt-1.0.5' make: *** [all] Error 2 ---- $ sudo dpkg -l | grep parted ii libparted0-dev 2.3-5 The GNU Parted disk partitioning library development files ii libparted0debian1 2.3-5 The GNU Parted disk partitioning shared library ii libparted0debian1-dbg 2.3-5 The GNU Parted disk partitioning library debug development files ii parted 2.3-5 The GNU Parted disk partition resizing program Can somebody please help? Thanks

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