Re: [Duplicity-talk] Out of space error while restoring a file

[Laurynas Biveinis]

2012/9/4  <address@hidden>:
> On 04.09.2012 20:04, Laurynas Biveinis wrote:
>>> On 04.09.2012 16:03, Laurynas Biveinis wrote:
>>>> 2012/9/4  <address@hidden>:
>>>>> On 04.09.2012 10:00, Laurynas Biveinis wrote:
>>>>>> Hi -
>>>>>>
>>>>>>>>>>>>>> I'm trying to restore a ~30GB file from backups. The free space 
>>>>>>>>>>>>>> on the
>>>>>>>>>>>>>> drive is about 80GB. Yet on restore I get the error below. What 
>>>>>>>>>>>>>> would
>>>>>>>>>>>>>> be causing this and how much free space do I actually need to 
>>>>>>>>>>>>>> restore?
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> $ duplicity -t2D --file-to-restore "path/to/file"
>>>>>>>>>>>>>> --s3-european-buckets --s3-use-new-style s3+http://foo $HOME/file
>>>>>>>>>>>>>> Local and Remote metadata are synchronized, no sync needed.
>>>>>>>>>>>>>> Warning, found the following orphaned backup file:
>>>>>>>>>>>>>> [duplicity-inc.20120319T102409Z.to.20120320T010946Z.manifest.part]
>>>>>>>>>>>>>> Last full backup date: Thu Aug 16 00:00:27 2012
>>>>>>>>>>>>>> Traceback (most recent call last):
>>>>>>>>>>>>>>   File "/usr/bin/duplicity", line 1403, in <module>
>>>>>>>>>>>>>>     with_tempdir(main)
>>>>>>>>>>>>>>   File "/usr/bin/duplicity", line 1396, in with_tempdir
>>>>>>>>>>>>>>     fn()
>>>>>>>>>>>>>>   File "/usr/bin/duplicity", line 1330, in main
>>>>>>>>>>>>>>     restore(col_stats)
>>>>>>>>>>>>>>   File "/usr/bin/duplicity", line 623, in restore
>>>>>>>>>>>>>>     restore_get_patched_rop_iter(col_stats)):
>>>>>>>>>>>>>>   File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", 
>>>>>>>>>>>>>> line
>>>>>>>>>>>>>> 522, in Write_ROPaths
>>>>>>>>>>>>>>     for ropath in rop_iter:
>>>>>>>>>>>>>>   File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", 
>>>>>>>>>>>>>> line
>>>>>>>>>>>>>> 495, in integrate_patch_iters
>>>>>>>>>>>>>>     final_ropath = patch_seq2ropath( normalize_ps( patch_seq ) )
>>>>>>>>>>>>>>   File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", 
>>>>>>>>>>>>>> line
>>>>>>>>>>>>>> 475, in patch_seq2ropath
>>>>>>>>>>>>>>     misc.copyfileobj( current_file, tempfp )
>>>>>>>>>>>>>>   File "/usr/lib/python2.7/dist-packages/duplicity/misc.py", 
>>>>>>>>>>>>>> line 170,
>>>>>>>>>>>>>> in copyfileobj
>>>>>>>>>>>>>>     outfp.write(buf)
>>>>>>>>>>>>>> IOError: [Errno 28] No space left on device
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> The backup chain looks as follows
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Chain start time: Thu Aug 16 00:00:27 2012
>>>>>>>>>>>>>> Chain end time: Thu Aug 30 00:00:23 2012
>>>>>>>>>>>>>> Number of contained backup sets: 12
>>>>>>>>>>>>>> Total number of contained volumes: 3477
>>>>>>>>>>>>>>  Type of backup set:                            Time:      Num 
>>>>>>>>>>>>>> volumes:
>>>>>>>>>>>>>>                 Full         Thu Aug 16 00:00:27 2012            
>>>>>>>>>>>>>>   2916
>>>>>>>>>>>>>>          Incremental         Sun Aug 19 00:00:25 2012            
>>>>>>>>>>>>>>     96
>>>>>>>>>>>>>>          Incremental         Mon Aug 20 00:00:28 2012            
>>>>>>>>>>>>>>     33
>>>>>>>>>>>>>>          Incremental         Tue Aug 21 00:00:30 2012            
>>>>>>>>>>>>>>     37
>>>>>>>>>>>>>>          Incremental         Wed Aug 22 00:00:25 2012            
>>>>>>>>>>>>>>     58
>>>>>>>>>>>>>>          Incremental         Thu Aug 23 00:00:30 2012            
>>>>>>>>>>>>>>     62
>>>>>>>>>>>>>>          Incremental         Fri Aug 24 00:00:31 2012            
>>>>>>>>>>>>>>     32
>>>>>>>>>>>>>>          Incremental         Sat Aug 25 00:00:26 2012            
>>>>>>>>>>>>>>     81
>>>>>>>>>>>>>>          Incremental         Sun Aug 26 00:00:28 2012            
>>>>>>>>>>>>>>     75
>>>>>>>>>>>>>>          Incremental         Mon Aug 27 00:00:21 2012            
>>>>>>>>>>>>>>      8
>>>>>>>>>>>>>>          Incremental         Tue Aug 28 00:00:18 2012            
>>>>>>>>>>>>>>     21
>>>>>>>>>>>>>>          Incremental         Thu Aug 30 00:00:23 2012            
>>>>>>>>>>>>>>     58
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Duplicity is 0.6.18.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Thanks in advance,
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> you need 30GB (size of file to restore) plus the size of one 
>>>>>>>>>>>>> volume in wherever TMP points to.
>>>>>>>>>>>>
>>>>>>>>>>>> Thanks. But I have only one partition, TMP is unset (if I 
>>>>>>>>>>>> understand
>>>>>>>>>>>> correctly, then it defaults to /tmp), the volume size is default, 
>>>>>>>>>>>> so
>>>>>>>>>>>> I'd need 30GB + 25MB, and I have 80GB free, but apparently that's 
>>>>>>>>>>>> not
>>>>>>>>>>>> enough?
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> should be... runthe restore with maximum verbosity '-v9' and post 
>>>>>>>>>>> the complete output to pastebin (obfuscate private info in it) and 
>>>>>>>>>>> send the link. maybe i'll see something.
>>>>>>>>>>
>>>>>>>>>> I'm attaching the compressed log. It's 2.5MB uncompressed, that's too
>>>>>>>>>> big for pastebin. Please let me know if I should it send it in some
>>>>>>>>>> other way.
>>>>>>>>>>
>>>>>>>>>>> you might want to monitor the disk usage during the restore. my 
>>>>>>>>>>> guess would be that the final copy of 30GB fails. maybe duplicity 
>>>>>>>>>>> keeps downloaded volumes in temp until finished?
>>>>>>>>>>
>>>>>>>>>> I got the "low disk space, 200MB remaining" warning on the volume
>>>>>>>>>> which had 80GB free initially. Looking at the log file, I guess it's
>>>>>>>>>> the initial downloading that fails. But why does it have to download
>>>>>>>>>> so much?
>>>>>>>>>>
>>>>>>>>>> I will attach a volume with some 200GB free, point TMP to it, and
>>>>>>>>>> restart the restore now.
>>>>>>>>>
>>>>>>>>> I have retried with TMP pointing to a volume with 244GB and the
>>>>>>>>> restore sill fails, although slightly differently. I have attached the
>>>>>>>>> compressed log.
>>>>>>>>>
>>>>>>>>
>>>>>>>> can you verify that during the course of the restore
>>>>>>>>  /media/Sandelys/tmp/duplicity-*-tempdir/
>>>>>>>> fills up the containing file system?
>>>>>>>>
>>>>>>>> this is suggested by the debug output. trying to pinpoint your issue 
>>>>>>>> here.
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>> unlikely but possible.. could you check that
>>>>>>>
>>>>>>> - you have enough inodes free (df -i) also during the course of the 
>>>>>>> restore
>>>>>>> - the file systems are sane by fsck'ing them as a precaution action
>>>>>>
>>>>>> Thanks for your help and suggestions.
>>>>>>
>>>>>> The big volume is formatted with NTFS. It was probably never mounted
>>>>>> in its native environment, so I fired a Windows VM to check it. And
>>>>>> indeed there were a few errors, involving the restore process. The
>>>>>> "lost+found" contained some downloaded volumes after the check:
>>>>>>
>>>>>> $ ls found.000/dir0000.chk/
>>>>>> duplicity-inc.20110830T210003Z.to.20110831T210003Z.vol4.difftar.gpg
>>>>>> duplicity-inc.20110830T210003Z.to.20110831T210003Z.vol7.difftar.gpg
>>>>>> duplicity-inc.20110830T210003Z.to.20110831T210003Z.vol5.difftar.gpg
>>>>>> duplicity-new-signatures.20110830T210003Z.to.20110831T210003Z.sigtar.gpg
>>>>>> duplicity-inc.20110830T210003Z.to.20110831T210003Z.vol6.difftar.gpg
>>>>>>
>>>>>> After fixing the volume I repeated the restore, monitoring the free
>>>>>> space and inodes by a script that does df -h df -i every 15 seconds.
>>>>>>
>>>>>> The restore failed in the same way as before, the log is attached
>>>>>> again. What's interesting is that according to the df the free space
>>>>>> did not change at all: http://pastebin.com/PhanxQUX (it contains two
>>>>>> partitions, originally it had only $TMP, I couldn't believe its
>>>>>> result, so I added $HOME (same as /) too and retried).
>>>>>>
>>>>>
>>>>> recheck your outputs, see below. around 09:16:58 /home/laurynas/.Private 
>>>>> overflows. my guess is that duplicity TMP is located there. use the other 
>>>>> partition as 80GB is obviously not enough.
>>>>
>>>> Thanks. Something does not add up here. The restore script does
>>>> export TMPDIR=/media/Sandėlys/tmp
>>>>
>>>> and the output of duplicity has
>>>>
>>>> Using temporary directory /media/Sandėlys/tmp/duplicity-qD6e4q-tempdir
>>>> Registering (mkstemp) temporary file
>>>> /media/Sandėlys/tmp/duplicity-qD6e4q-tempdir/mkstemp-HzlUlf-1
>>>> Temp has 261955923968 available, backup will use approx 34078720.
>>>>
>>>> Could it be that TMPDIR is ignored somewhere?
>>>>
>>
>>> find out which data on /home/laurynas fills it up. you are right the output 
>>> above suggests it uses the big partition (/media/Sande.lys) but obviously 
>>> the other one fills up.
>>
>> So I might have found something useful: I started duplicity with
>> strace. Then I did lsof while it's in progress and got one open handle
>> outside the /media/Sandėlys:
>>
>> duplicity 31759 laurynas   44u   REG     8,1 529465344 15467022
>> /tmp/tmpfxLhqjk (deleted)
>>
>> It is deleted and ever-growing. I looked for it in strace:
>>
>> 31759 stat("/tmp", {st_mode=S_IFDIR|S_ISVTX|0777, st_size=45056, ...}) = 0
>> 31759 open("/tmp/tmpfxLhqjk", O_RDWR|O_CREAT|O_EXCL, 0600) = 44
>> 31759 unlink("/tmp/tmpfxLhqjk")         = 0
>> 31759 fcntl(44, F_GETFL)                = 0x8002 (flags O_RDWR|O_LARGEFILE)
>> 31759 fstat(44, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0
>>
>> First write contents suggests that this is going to be the final file:
>>
>> 31759 write(44, "<<< Oracle VM VirtualBox Disk Im"..., 65536 <unfinished ...>
>>
>> Any idea or pointers?
>>
>
>
> try setting all 3 env vars..
> http://duplicity.nongnu.org/duplicity.1.html#sect7
> maybe it's a bug deep down, not respecting TMPDIR only

export TEMP=/media/Sandėlys/tmp
export TMP=/media/Sandėlys/tmp
export TMPDIR=/media/Sandėlys/tmp

Does not seem to help:

duplicity 32278 laurynas   44u   REG     8,1 282394624 15467022
/tmp/tmpf7oQNmc (deleted)

> still i wonder what's up with /media/Sandėlys versus /media/Sande.lys .. can 
> you explain?

I am not sure what you mean by "Sande.lys"?.. It's "/media/Sandėlys".
I have a diacritic letter in the path, seems to work OK. I did check
/media while the restore was running that there were no "Sandelys" (no
diacritic) or "Sande.lys" or anything else similar there being
created.

Thanks again,
-- 
Laurynas