ZFS: Invalid SEND/RECV stream still

[Ian Lepore]

On Fri, 2013-10-25 at 12:07 -0500, Larry Rosenman wrote:
> between 10.0-BETA1 and 11.0-CURRENT.
> I've been fighting this battle for a LONG time.  I had hoped(!) that it 
> would be solved by the systems being
> closer in rev but that didn't happen.
> 
> I'd LOVE someone to look at it.
> 
> I can provide ssh / root access to both machines.
> 
> 
> Error Message:
> received 320KB stream in 1 seconds (320KB/sec)
> receiving incremental stream of vault/var at 2013-10-25 into 
> zroot/backups/TBH/var at 2013-10-25
> cannot receive incremental stream: invalid backup stream
> $
> 
> Script:
> $ cat backup-TBH-ZFS.sh
> #!/bin/sh
> DATE=`date "+%Y-%m-%d"`
> #DATE2=2013-03-24
> DATE2=`date -v "-1d" "+%Y-%m-%d"`
> # snap the source
> ssh root at tbh.lerctr.org zfs snapshot -r vault@${DATE}
> # zfs copy the source to here.
> ssh root at tbh.lerctr.org "zfs send  -R -D  -I vault@${DATE2} 
> vault@${DATE} | \
>       ssh home.lerctr.org \"zfs recv -F -u -v -d zroot/backups/TBH\""
> # make sure we NEVER allow the backup stuff to automount.
> /sbin/zfs list -H -t filesystem -r zroot/backups/TBH| \
>      awk '{printf "/sbin/zfs set canmount=noauto %s\n",$1}' | sh
> $
> 
> Uname's:
> $ uname -a
> FreeBSD borg.lerctr.org 11.0-CURRENT FreeBSD 11.0-CURRENT #80 r257016: 
> Wed Oct 23 17:36:15 CDT 2013     
> root at borg.lerctr.org:/usr/obj/usr/src/sys/BORG-DTRACE  amd64
> $ ssh tbh uname -a
> FreeBSD thebighonker.lerctr.org 10.0-BETA1 FreeBSD 10.0-BETA1 #1 
> r256791: Sun Oct 20 12:28:55 CDT 2013     
> root at thebighonker.lerctr.org:/usr/obj/usr/src/sys/THEBIGHONKER  amd64
> $
> 
> What else do y'all need?
> 
> 
> 

I notice you're using ssh and a pipe -- does your shell logon script
echo anything to stdout when you connect?  I've had that interfere with
piped ssh stuff.  Most shells provide a way for the logon script to
determine "is this an interactive session?" and you can use that to
avoid echoing anything that would interfere with non-interactive
automation.

-- Ian