[Gluster-users] gluster over vdo, problem with gfapi

[dm]

Some more info, really we have lvm over lvm here:

lvm-vdo-lvm...

Thank you!


12.08.2020 11:00, Dmitry Melekhov пишет:
> Hello!
>
>
> We are testing gluster 8 on centos 8.2 and we try to use volume 
> created over vdo.
>
> This is 2 nodes setup.
>
> There is lvm created over vdo, and xfs filesystem.
>
>
> Test vm runs just fine if  we run vm over fuse:
>
>
>   <disk type='file' device='disk'>
>      <driver name='qemu' type='raw' cache='directsync'/>
>      <source file='/root/pool/stewjon.img'/>
>      <target dev='vda' bus='virtio'/>
>
>
> /root/pool/ is fuse mount.
>
>
> but if we try to run:
>
>
>   <disk type='network' device='disk'>
>      <driver name='qemu' type='raw' cache='directsync'/>
>      <source protocol='gluster' name='pool/stewjon.img'>
>        <host name='127.0.0.1'/>
>      </source>
>      <target dev='vda' bus='virtio'/>
>    </disk>
>
>
> then vm boot dies, qemu says- no bootable device.
>
>
> It works without cache='directsync' though.
>
> But live migration does not work.
>
>
> btw, everything work OK if we run VM on gluster volume without vdo...
>
> Any ideas what can cause this and how it can be fixed?
>
>
> Thank you!
>