[pve-devel] applied: [PATCH v2 qemu-server] resume: bump timeout for query-status

[Thomas Lamprecht <t.lamprecht@proxmox.com>]

Am 25/07/2024 um 14:32 schrieb Fiona Ebner:
> As reported in the community forum [0], after migration, the VM might
> not immediately be able to respond to QMP commands, which means the VM
> could fail to resume and stay in paused state on the target.
> 
> The reason is that activating the block drives in QEMU can take a bit
> of time. For example, it might be necessary to invalidate the caches
> (where for raw devices a flush might be needed) and the request
> alignment and size of the block device needs to be queried.
> 
> In [0], an external Ceph cluster with krbd is used, and the initial
> read to the block device after migration, for probing the request
> alignment, takes a bit over 10 seconds[1]. Use 60 seconds as the new
> timeout to be on the safe side for the future.
> 
> All callers are inside workers or via the 'qm' CLI command, so bumping
> beyond 30 seconds is fine.
> 
> [0]: https://forum.proxmox.com/threads/149610/
> 
> Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
> ---
> 
> Changes in v2:
> * improve commit message with new findings from the forum thread
> 
>  PVE/QemuServer.pm | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
>

applied, thanks!


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