[OpenIndiana-discuss] zfs recv problem
rdparker at gmail.com
Fri Nov 4 00:51:23 UTC 2011
I wasn't sure where to report this, so I thought I'd start here.
I got the scare of my life today when I was doing a "zfs recv -v -F -d
tank < stream" and got the message:
receiving incremental stream of tank/vms at zfs-auto-snap_daily-... into
tank/vms at zfs-auto-snap_daily-...
cannot receive incremental stream: invalid backup stream
This is on OI151a and that particular file system was all of my
virtual machine images.
After googling and finding a report of this from zfsforlinux that
mentioned it had been fixed upstream, I determined it wasn't exactly
the same issue. It also reminded me that this had happened before
(with 147/8) and I had read the exact same posts back then before
figuring out a way around the problem, but hadn't taken the time to
report it anywhere.
So, what's the issue?
If timeslider kicks in while a "zfs recv" is running. It may create or
at least attempt to create a snapshot which interferes with the
The "solution" is to temporarily turn off timeslider. Do your receive
and then turn it back on.
Now that you're done laughing, should it be considered a bug? Where
should this be reported? Is there a better way to handle it?
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