[Libguestfs] [PATCH] v2v: rhv-upload-plugin - improve wait logic after finalize (RHBZ#1680361)

[Pino Toscano]

On Monday, 9 September 2019 18:00:35 CEST Richard W.M. Jones wrote:
> From: Daniel Erez <derez at redhat.com>
> 
> After invoking transfer_service.finalize, check operation status by
> examining DiskStatus.  This is done instead of failing after a
> predefined timeout regardless the status.
> 
> Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1680361
> Signed-off-by: Richard W.M. Jones <rjones at redhat.com>
> Tested-by: Ilanit Stein <istein at redhat.com>
> ---
>  v2v/rhv-upload-plugin.py | 19 +++++++++++++------
>  1 file changed, 13 insertions(+), 6 deletions(-)
> 
> diff --git a/v2v/rhv-upload-plugin.py b/v2v/rhv-upload-plugin.py
> index 9e71021..8f13ce1 100644
> --- a/v2v/rhv-upload-plugin.py
> +++ b/v2v/rhv-upload-plugin.py
> @@ -549,16 +549,23 @@ def close(h):
>          # waiting for the transfer object to cease to exist, which
>          # falls through to the exception case and then we can
>          # continue.
> -        endt = time.time() + timeout
> +        disk_id = disk.id
> +        start = time.time()
>          try:
>              while True:
>                  time.sleep(1)
> -                tmp = transfer_service.get()
> -                if time.time() > endt:
> -                    raise RuntimeError("timed out waiting for transfer "
> -                                       "to finalize")
> +                disk_service = h['disk_service']
> +                disk = disk_service.get()
> +                if disk.status == types.DiskStatus.LOCKED:
> +                    if time.time() > start + timeout:
> +                        raise RuntimeError("timed out waiting for transfer "
> +                                           "to finalize")
> +                    continue
> +                if disk.status == types.DiskStatus.OK:
> +                    debug("finalized after %s seconds" % (time.time() - start))
> +                    break
>          except sdk.NotFoundError:
> -            pass
> +            raise RuntimeError("transfer failed: disk %s not found" % disk_id)

Seems to be OK (although I did not test it).

-- 
Pino Toscano
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