GitHub user weizhouapache added a comment to the discussion: Error deleting VM.
ACS 4.22.0.0 KVM Ceph
> @sptest232 , can you add the vm xml def from the host? (with `virsh dumpxml
> <id>`>?
>
> When looking at that the disk-cache the value should be one of `NONE("none"),
> WRITEBACK("writeback"), WRITETHROUGH("writethrough"),
> HYPERVISOR_DEFAULT("default”)`.
>
> What java versions are you running on the Host and MS?
according to the libvirt doc
https://libvirt.org/formatdomain.html
`The optional cache attribute controls the cache mechanism, possible values are
"default", "none", "writethrough", "writeback", "directsync" (since 0.9.5; like
"writethrough", but it bypasses the host page cache) and "unsafe" (since 0.9.7;
host may cache all disk io, and sync requests from guest are ignored). Since
0.6.0`
I think we could add `directsync` and `unsafe`, although I never saw them before
cc @DaanHoogland
GitHub link:
https://github.com/apache/cloudstack/discussions/12226#discussioncomment-15233770
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