search for: disk_005fimage_005flocking

Hi list, I would like to ask a clarification about how locking works. My test system is CentOS 7.7 with libvirt-4.5.0-23.el7_7.1.x86_64 Is was understanding that, by default, libvirt does not use any locks. From here [1]: "The out of the box configuration, however, currently uses the nop lock manager plugin". As "lock_manager" is commented in my qemu.conf file, I was

...orruption from processes outside libvirt scope (ie: manually issues "qemu-img" commands). Do you suggest relying on Qemu own locks or using virtlockd (in addition to Qemu locks)? Whatever the answer is, can you explain why? Thanks. [1] https://qemu.weilnetz.de/doc/2.12/qemu-doc.html#disk_005fimage_005flocking [2] https://bugzilla.redhat.com/show_bug.cgi?id=1378241 -- Danti Gionatan Supporto Tecnico Assyoma S.r.l. - www.assyoma.it email: g.danti@assyoma.it - info@assyoma.it GPG public key ID: FF5F32A8