Add check for sufficient free space in the host
resolves: rhbz#2051394
Update documentation of -ip for conversions from VMware over HTTPS
related: rhbz#1960087
-o rhv-upload: Keep connections alive (2032324)
-o rhv-upload: Improve conversion performance (2039255)
These two patches fix potential issues. Best to get them tested over
Christmas and New Year.
v2v: Swap over the output and conversion stages
In old virt-v2v, we did (approximately, since the steps were not as
clear):
Input -> Convert -> Output -> Copy -> Finalize
After modularizing virt-v2v we changed this to:
Input -> Output -> Convert -> Copy -> Finalize
However this has a (sort of) problem. For -o rhv-upload when we start
the nbdkit rhv-upload-plugin machinery, it obtains a time-limited
ticket from imageio. This ticket could expire if the conversion step
takes longer than a certain time (60 seconds by default, may be
increased in a future version of oVirt).
I believe this is really a problem in imageio or that the
rhv-upload-plugin should really renew this ticket automatically, but
it does not, instead failing. (The ticket *is* renewed automatically
whenever a request is sent to imageio, but in this case no requests
are being sent).
Anyway the easiest thing is to switch the ordering back to how it was
in old virt-v2v (at top). It doesn't make a difference for any other
output modes.
Reported-by: Nir Soffer
and:
v2v: Remove nbdcopy --request-size=4M flag
This was added when we were setting the cow-block-size to 1M. However
since commit 351d61f768 ("input: -it vddk: Reduce cow-block-size to 4K")
we stopped doing that so this is no longer needed.
Reverts: commit 08e764959ec9dadd71a95d22d3d88d647a18d165
Related: rhbz#2011713
