[libvirt-users] libvirt slow responding after define poool with existing VG with some other lv

[Cole Robinson]

On 04/16/2012 03:20 AM, Anton Gorlov wrote:
> If I add  VG with some other lv-s to  libvirt pool   then libvirt slow
> responding. How to fix it?
> 

Which distro and version of libvirt are you using? There is a fix that may
help, but it's only in 0.9.10 or newer:

http://libvirt.org/git/?p=libvirt.git;a=commit;h=275155f664614fd32bcf5e963488e6f97b66dae4

- Cole

> 
> <pool type='logical'>
>   <name>LVM_MAIN</name>
>   <uuid>a2713bed-ad4a-fb79-83b5-65a9e8f1094e</uuid>
>   <capacity>0</capacity>
>   <allocation>0</allocation>
>   <available>0</available>
>   <source>
>     <name>LVM_MAIN</name>
>     <format type='unknown'/>
>   </source>
>   <target>
>     <path>/dev/LVM_MAIN</path>
>     <permissions>
>       <mode>0700</mode>
>       <owner>-1</owner>
>       <group>-1</group>
>     </permissions>
>   </target>
> </pool>
> 
>  vgdisplay
> File descriptor 7 (pipe:[37858]) leaked on vgdisplay invocation. Parent PID
> 12554: bash
>   --- Volume group ---
>   VG Name               LVM_MAIN
>   System ID
>   Format                lvm2
>   Metadata Areas        1
>   Metadata Sequence No  9
>   VG Access             read/write
>   VG Status             resizable
>   MAX LV                0
>   Cur LV                4
>   Open LV               1
>   Max PV                0
>   Cur PV                1
>   Act PV                1
>   VG Size               1.82 TiB
>   PE Size               4.00 MiB
>   Total PE              476931
>   Alloc PE / Size       139520 / 545.00 GiB
>   Free  PE / Size       337411 / 1.29 TiB
>   VG UUID               ymYQtb-Xjnd-OBNv-xnUQ-w9gi-5uxm-kjzo
> 
> not created  libvirt
> 
> /dev/LVM_MAIN/os_mirror
>   VG Name                LVM_MAIN
>   LV UUID                iPfekp-PN1C-rPHP-Bo3K-TljL-cffi-NdDvpi
>   LV Write Access        read/write
>   LV Status              available
>   # open                 1
>   LV Size                500.00 GiB
>   Current LE             128000
>   Segments               1
>   Allocation             inherit
>   Read ahead sectors     auto
>   - currently set to     256
>   Block device           253:0
> 
> 
> created by libvirt-install
> 
>   --- Logical volume ---
>   LV Name                /dev/LVM_MAIN/debian6.0-1.img
>   VG Name                LVM_MAIN
>   LV UUID                23ncRV-yimL-2OTZ-K4ck-YKNo-s6x6-Bjh3cl
>   LV Write Access        read/write
>   LV Status              available
>   # open                 0
>   LV Size                15.00 GiB
>   Current LE             3840
>   Segments               1
>   Allocation             inherit
>   Read ahead sectors     auto
>   - currently set to     256
>   Block device           253:1
> 
>   --- Logical volume ---
>   LV Name                /dev/LVM_MAIN/debian6.0-bacula.img
>   VG Name                LVM_MAIN
>   LV UUID                BFANbb-fFpC-k0wZ-ue5e-Y6bF-Rnbg-tmelt0
>   LV Write Access        read/write
>   LV Status              available
>   # open                 0
>   LV Size                15.00 GiB
>   Current LE             3840
>   Segments               1
>   Allocation             inherit
>   Read ahead sectors     auto
>   - currently set to     256
>   Block device           253:2
> 
>   --- Logical volume ---
>   LV Name                /dev/LVM_MAIN/debian6.0-bacula-1.img
>   VG Name                LVM_MAIN
>   LV UUID                nTOAaH-3B50-QtQ7-Xf9k-9Q0H-mftQ-p0zdO6
>   LV Write Access        read/write
>   LV Status              available
>   # open                 0
>   LV Size                15.00 GiB
>   Current LE             3840
>   Segments               1
>   Allocation             inherit
>   Read ahead sectors     auto
>   - currently set to     256
>   Block device           253:3
> 
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