zfs send/recv invalid data

Larry Rosenman ler at lerctr.org
Wed Mar 6 02:54:04 UTC 2013


On Tue, 5 Mar 2013, Larry Rosenman wrote:

> On 2013-03-05 20:35, Steven Hartland wrote:
>> ----- Original Message ----- From: "Larry Rosenman" <ler at lerctr.org>
>> To: "Ronald Klop" <ronald-freebsd8 at klop.yi.org>
>> Cc: <freebsd-fs at freebsd.org>
>> Sent: Wednesday, March 06, 2013 12:13 AM
>> Subject: Re: zfs send/recv invalid data
>> 
>> 
>>> On 2013-03-05 14:52, Larry Rosenman wrote:
>>>> On 2013-03-05 14:45, Ronald Klop wrote:
>>>>> On Tue, 05 Mar 2013 21:12:40 +0100, Larry Rosenman <ler at lerctr.org> 
>>>>> wrote:
>>>>> 
>>>>>> I received an "invalid data" in a zfs send (from 8.3) / zfs recv (to 
>>>>>> 10.0) of a -R -I stream.
>>>>>> What data do I need to gather to figure out what side and what's wrong?
>>>>>> I've already started zpool scrubs on both sides.
>>>>>> I can insert a tee to grab the stream on either/both sides if that 
>>>>>> would  help.
>>>>>> 
>>>>>> 
>>>>>> 
>>>>> Is the problem repeatable or is it just a network glitch?
>>>>> Ronald.
>>>> Repeatable.......
>>> 
>>> Here is the exact error message:
>>> receiving incremental stream of vault/home/ctr at 2013-03-05-test3 into 
>>> zroot/backups/TBH/home/ctr at 2013-03-05-test3
>>> cannot receive incremental stream: invalid backup stream
>>> this is the script I'm running:
>>> #!/bin/sh
>>> DATE=`date "+%Y-%m-%d-BUG-REPRO"`
>>> 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@${DATE} 
>>> | \
>>>      tee /tmp/backup.stream.send.${DATE} | \
>>>      ssh home.lerctr.org \"tee /tmp/backup.stream.receive.${DATE} | zfs 
>>> recv  -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
>>> both streams are in http://www.lerctr.org/~ler/ZFS_RECV
>> 
>> Your send and receive sides differ, which indicates your ssh
>> shell my not be clean.
>> 
>> Looking at the receive side its got what looks like a mail
>> message appended.
>> 
>> I suspect if you manually copy the receive copy to the 10 machine and
>> the receive it will work fine.
>
> we're copying mail files........
>
> and it still fails....
>
I've put more example send/recv files in that directory.

we're copying home dirs, which include lots of mail.

(this one is my wife's)

Ideas?

I *CAN* give access to both sides via ssh.....


-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 512-248-2683                 E-Mail: ler at lerctr.org
US Mail: 430 Valona Loop, Round Rock, TX 78681-3893


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