Thanks for the note on xattr work.

I do understand about ideally not needing volumes outside the catalog and 
this is definitely not a common case for us. In this situation, the client 
system had a damaged filesystem for longer than we realized, and we saw 
"ERR=No such file or directory" in job logs (common here for systems with 
computational jobs using temp files) when what was really happening was I/O 
errors (eventually we did see "ERR=Input/output error"). We didn't realize 
this fully until some of the volumes were pruned.

Either way, the expectation is for a Bareos volume to be usable if it still 
exists on disk. In this case it was and I just didn't understand how to use 
bextract correctly. Whew. :-D

Thanks for your help!

Josh

On Wednesday, May 14, 2025 at 8:22:34 AM UTC-4 Bruno Friedmann 
(bruno-at-bareos) wrote:

> Bextract being a kinda last resort tool, I don't think it will get a lot 
> of effort to support all special case the normal FD support, especially 
> version under maintenance only like 22.
> We have some work in progress about xattr, like replacing error message by 
> warning in future versions.
>
> Usually a needed volume shouldn't get out of the catalog, the catalog can 
> support several billions of record in file table with according 
> configuration and hardware.
> So there's normally no needs for purging those volumes too early.
>
> Regards.
>
> On Wednesday, 14 May 2025 at 14:17:19 UTC+2 Joshua Myles wrote:
>
>> Ah...restoring locally appears to work. I was trying to restore to an NFS 
>> share.
>>
>> Strangely, I'm doing a separate 24 TB restore (from the catalog) for the 
>> same client to an NFS share mounted on another client and it's working 
>> fine. Might bareos-fd be doing something differently than bextract when it 
>> comes to writing attributes?
>>
>> Also, could there be better error handling for this by bextract?
>>
>> Josh
>>
>> On Wed, May 14, 2025 at 8:08 AM Bruno Friedmann (bruno-at-bareos) <
>> bruno.f...@bareos.com> wrote:
>>
>>> Caution: The sender of this email could not be verified, which may 
>>> indicate an impersonation attempt. Verify the email's authenticity with the 
>>> sender using your organization's trusted contact list before replying or 
>>> taking further action. 
>>> Secured by Check Point 
>>> <https://www.checkpoint.com/harmony/email-security/email-office?friew> 
>>
>>
>>> The crash is more about xattrs do you know if your restore location is 
>>> able to handle the same way the source was doing xattrs ?
>>>
>>> What happen if you restore those 2 files locally first.
>>>
>>> On Wednesday, 14 May 2025 at 14:00:04 UTC+2 Joshua Myles wrote:
>>>
>>>> Repeating this and trying to just extract all files in the volume was 
>>>> even less successful.
>>>>
>>>> [root@bareos-sd-pub-test ~]# bextract -p -V 
>>>> pauling-AI-Consolidated-4324  /var/lib/bareos/storage /mnt/pauling_restore
>>>>
>>>> bextract: stored/butil.cc:304-0 Using device: "/var/lib/bareos/storage" 
>>>> for reading.
>>>> 14-May 07:55 bextract JobId 0: Ready to read from volume 
>>>> "pauling-AI-Consolidated-4324" on device "FileStorage" 
>>>> (/var/lib/bareos/storage).
>>>> bextract JobId 0: -rw-r--r--   1 1016     1016          290029 
>>>> 2023-09-20 22:21:36 
>>>>  /mnt/pauling_restore/data/redacted/hbond_R171A_sub_acceptor.dat
>>>> bextract JobId 0: drwxrwxr-x   4 1016     1016            4096 
>>>> 2023-09-20 22:23:53  *None*
>>>> bextract JobId 0: -rw-rw-r--   1 1016     1016         3941000 
>>>> 2023-10-22 17:54:32  /mnt/pauling_restore/data/redacted/EFE_small_fc.log
>>>>
>>>> Segmentation fault (core dumped)
>>>> [root@bareos-sd-pub-test ~]# 
>>>>
>>>>
>>>> It seems like the volume may be corrupt somehow, even though it lists 
>>>> fully with bls and was otherwise fully functional as far as we knew.
>>>>
>>>> Josh
>>>>
>>>> On Wednesday, May 14, 2025 at 7:42:20 AM UTC-4 Joshua Myles wrote:
>>>>
>>>>> Here's another run inside gdb.
>>>>>
>>>>> (gdb) run
>>>>> Starting program: /usr/sbin/bextract -i file.list -V 
>>>>> pauling-AI-Consolidated-4324 /var/lib/bareos/storage /mnt/pauling_restore
>>>>> [Thread debugging using libthread_db enabled]
>>>>> Using host libthread_db library "/lib64/libthread_db.so.1".
>>>>>
>>>>> bextract: stored/butil.cc:304-0 Using device: 
>>>>> "/var/lib/bareos/storage" for reading.
>>>>> 14-May 07:34 bextract JobId 0: Ready to read from volume 
>>>>> "pauling-AI-Consolidated-4324" on device "FileStorage" 
>>>>> (/var/lib/bareos/storage).
>>>>>
>>>>> bextract JobId 0: -rw-rw-r--   1 1016     1016             107 
>>>>> 2023-07-20 10:36:55  /mnt/pauling_restore/data/redacted/CONTROL
>>>>> bextract JobId 0: -rw-rw-r--   1 1016     1016        11789547 
>>>>> 2023-07-20 10:36:55  /mnt/pauling_restore/data/redacted/beta
>>>>>
>>>>> Program received signal SIGSEGV, Segmentation fault.
>>>>> 0x00007ffff79468e6 in ParseXattrStreams (jcr=0x665300, 
>>>>> xattr_data=xattr_data@entry=0x640580 <xattr_data>,
>>>>>     stream=stream@entry=1998, content=0x69cb30 "", content_length=65) 
>>>>> at ../../../../core/src/findlib/xattr.cc:3463
>>>>> 3463    ../../../../core/src/findlib/xattr.cc: No such file or 
>>>>> directory.
>>>>> (gdb) 
>>>>>
>>>>> The file names were copied directly from bls output. The files in 
>>>>> file.list appeared only on volume pauling-AI-Consolidated-4324.
>>>>>
>>>>> Josh
>>>>>
>>>>> On Wednesday, May 14, 2025 at 5:36:15 AM UTC-4 Bruno Friedmann 
>>>>> (bruno-at-bareos) wrote:
>>>>>
>>>>>> Hi Joshua,
>>>>>>
>>>>>> I'm a bit surprized by your result. I've just redone a test on EL9 
>>>>>> with bareos 22.1.7 and it works fine
>>>>>>
>>>>>> su bareos -s /usr/bin/bash -c "/usr/sbin/bextract -i /tmp/file.list 
>>>>>> -V Full-0001 /var/lib/bareos/storage /var/tmp/bareos_restore"
>>>>>>
>>>>>> bextract: stored/butil.cc:304-0 Using device: 
>>>>>> "/var/lib/bareos/storage" for reading.
>>>>>> 14-May 09:28 bextract JobId 0: Ready to read from volume "Full-0001" 
>>>>>> on device "FileStorage" (/var/lib/bareos/storage).
>>>>>> bextract JobId 0: -rw-r--r--   1 bareos   bareos         83452 
>>>>>> 2025-05-14 09:09:17  /var/tmp/bareos_restore/var/lib/bareos/bareos.sql
>>>>>> 14-May 09:28 bextract JobId 0: End of Volume at file 0 on device 
>>>>>> "FileStorage" (/var/lib/bareos/storage), Volume "Full-0001"
>>>>>> 14-May 09:28 bextract JobId 0: End of all volumes.
>>>>>> 14-May 09:28 bextract JobId 0: Releasing device "FileStorage" 
>>>>>> (/var/lib/bareos/storage).
>>>>>> 1 files restored.
>>>>>>
>>>>>> So what might happen, be sure all the files you want to restore are 
>>>>>> exactly on this volume (-V can be a list of volumes), maybe you have a 
>>>>>> file 
>>>>>> that overlaps on a second volume ?
>>>>>>
>>>>>> On Tuesday, 13 May 2025 at 19:34:48 UTC+2 Joshua Myles wrote:
>>>>>>
>>>>>>> I'm trying to use bextract to pull a few files out of a Bareos 
>>>>>>> volume that is no longer in the catalog. bls on this volume works fine, 
>>>>>>> but 
>>>>>>> bextract fails a bit into the second restored file.
>>>>>>>
>>>>>>> [root@bareos-sd-pub-test ~]# bextract -i file.list -V 
>>>>>>> pauling-AI-Consolidated-4324  /var/lib/bareos/storage 
>>>>>>> /mnt/pauling_restore
>>>>>>> bextract: stored/butil.cc:304-0 Using device: 
>>>>>>> "/var/lib/bareos/storage" for reading.
>>>>>>> 13-May 13:27 bextract JobId 0: Ready to read from volume 
>>>>>>> "pauling-AI-Consolidated-4324" on device "FileStorage" 
>>>>>>> (/var/lib/bareos/storage).
>>>>>>> bextract JobId 0: -rw-rw-r--   1 1016     1016             107 
>>>>>>> 2023-07-20 10:36:55  /mnt/pauling_restore/data/redacted/CONTROL
>>>>>>> bextract JobId 0: -rw-rw-r--   1 1016     1016        11789547 
>>>>>>> 2023-07-20 10:36:55  /mnt/pauling_restore/data/redacted/beta
>>>>>>> Segmentation fault (core dumped)
>>>>>>> [root@bareos-sd-pub-test ~]#
>>>>>>>
>>>>>>> dmesg says this:
>>>>>>>
>>>>>>> [Tue May 13 13:31:03 2025] bextract[20209]: segfault at 0 ip 
>>>>>>> 00007f29758528e6 sp 00007ffd49524e00 error 6 in 
>>>>>>> libbareosfind.so.22.1.7[7f2975842000+15000]
>>>>>>> [Tue May 13 13:31:03 2025] Code: 5b 5d 41 5c 41 5d 41 5e 41 5f c3 66 
>>>>>>> 0f 1f 84 00 00 00 00 00 8b 53 0c 48 39 c2 75 99 f6 43 08 02 75 a1 f3 0f 
>>>>>>> 1e 
>>>>>>> fa 48 8b 43 18 <83> 00 01 b8 03 00 00 00 eb ae 48 8b 1b 48 8d 3d 36 24 
>>>>>>> 00 
>>>>>>> 00 e8 b1
>>>>>>>
>>>>>>> Any thoughts here? Same on Bareos 22.1.6 and 22.1.7 subscription, 
>>>>>>> RHEL 8 and 9. Not sure how to debug bextract specifically.
>>>>>>>
>>>>>>> Josh
>>>>>>>
>>>>>> -- 
>>> You received this message because you are subscribed to a topic in the 
>>> Google Groups "bareos-users" group.
>>> To unsubscribe from this topic, visit 
>>> https://groups.google.com/d/topic/bareos-users/wgiQc12yZsI/unsubscribe.
>>> To unsubscribe from this group and all its topics, send an email to 
>>> bareos-users...@googlegroups.com.
>>> To view this discussion visit 
>>> https://groups.google.com/d/msgid/bareos-users/c7d2a0bd-fde8-411e-a469-502dae8d795cn%40googlegroups.com
>>>  
>>> <https://groups.google.com/d/msgid/bareos-users/c7d2a0bd-fde8-411e-a469-502dae8d795cn%40googlegroups.com?utm_medium=email&utm_source=footer>
>>> .
>>>
>>
>>
>> -- 
>> Joshua Myles
>> he/him
>> Senior Storage Administrator
>> Michigan Tech IT
>>
>> We can help.
>> mtu.edu/it
>> 906-369-1870 <(906)%20369-1870>
>>
>> [image: 
>> https://web.archive.org/web/20250214195913/https://www.mtu.edu/safeplace/about/program/]
>>  
>> <https://web.archive.org/web/20250214195913/https://www.mtu.edu/safeplace/about/program/>
>>
>

-- 
You received this message because you are subscribed to the Google Groups 
"bareos-users" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to bareos-users+unsubscr...@googlegroups.com.
To view this discussion visit 
https://groups.google.com/d/msgid/bareos-users/6f4a79c3-f507-4340-af82-97457340ee2fn%40googlegroups.com.

Reply via email to