moosefs-users

[Moosefs-users] MooseFS space allocation

[Boris E. <bor...@gm...>]

Hello listmates,

I've got a MooseFS disk space pool residing on a chunk server in a file
system that is about 22TB. Yet, the MooseFS reports that file system as
being only about 17 TB in size. Why would that be?

Thanks.

Boris.

[Moosefs-users] restoring from mfsmetalogger server

[Karol P. <kar...@ar...>]

Hi all,

I have problem with restoring metadata.mfs from mfsmetalloger.

# mfsmetarestore -m metadata_ml.mfs.back -o /tmp/metadata.mfs changelog_ml*
loading objects (files,directories,etc.) ... ok
loading names ... ok
loading deletion timestamps ... ok
loading chunks data ... ok
checking filesystem consistency ... ok
connecting files and chunks ... ok
found garbage at the end of file: changelog_ml_back.0.mfs (last correct 
id: 66424694)
hole in change files (entries from changelog_ml_back.1.mfs:66475886 to 
changelog_ml.0.mfs:67436656 are missing) - add more files

Anybody had similar problem? How to solve it?

Some days ago I also observed that mfsmaster can't save metadata to file 
metadata.mfs.back, also when is runned as root.

br.
Karol

Re: [Moosefs-users] restoring from mfsmetalogger server

[Karol P. <kar...@ar...>]

based on documentation, metadata.mfs.back should be saved every hour, 
but it isn't.
Opposite to metadata.mfs.back, changelogs are saved correctly.

On 05/14/2012 02:45 PM, Karol Pasternak wrote:
> Hi all,
>
> I have problem with restoring metadata.mfs from mfsmetalloger.
>
> # mfsmetarestore -m metadata_ml.mfs.back -o /tmp/metadata.mfs changelog_ml*
> loading objects (files,directories,etc.) ... ok
> loading names ... ok
> loading deletion timestamps ... ok
> loading chunks data ... ok
> checking filesystem consistency ... ok
> connecting files and chunks ... ok
> found garbage at the end of file: changelog_ml_back.0.mfs (last correct
> id: 66424694)
> hole in change files (entries from changelog_ml_back.1.mfs:66475886 to
> changelog_ml.0.mfs:67436656 are missing) - add more files
>
> Anybody had similar problem? How to solve it?
>
> Some days ago I also observed that mfsmaster can't save metadata to file
> metadata.mfs.back, also when is runned as root.
>
> br.
> Karol
>
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-- 

Pozdrawiam/Best Regards

*Karol Pasternak
**Linux Administrator | ARBOmedia*

*_ka...@ar..._***
T +48 22 592 49 95 | M +48 785 555 184
*
ARBOmedia Polska | *Altowa 2 | 02-386 Warszawa*
www.arbomedia.pl* <http://www.arbomedia.pl/>** | T +48 22 592 45 00 | F 
22 448 71 63

ARBOmedia Polska Sp. z o.o., zarejestrowana w Sa;dzie Rejonowym dla 
m.st. Warszawy
w Warszawie, XII Wydzia? Gospodarczy Krajowego Rejestru Sa;dowego, pod 
numerem
KRS: 0000181362, kapita? zak?adowy wynosi 600 000 z?, NIP: 527-23-12-331

Re: [Moosefs-users] restoring from mfsmetalogger server

[Adam O. <bl...@bl...>]

W dniu 12-05-14 14:45, Karol Pasternak pisze:
> Hi all,
>
> I have problem with restoring metadata.mfs from mfsmetalloger.
>
> # mfsmetarestore -m metadata_ml.mfs.back -o /tmp/metadata.mfs changelog_ml*
> loading objects (files,directories,etc.) ... ok
> loading names ... ok
> loading deletion timestamps ... ok
> loading chunks data ... ok
> checking filesystem consistency ... ok
> connecting files and chunks ... ok
> found garbage at the end of file: changelog_ml_back.0.mfs (last correct
> id: 66424694)
> hole in change files (entries from changelog_ml_back.1.mfs:66475886 to
> changelog_ml.0.mfs:67436656 are missing) - add more files
>
> Anybody had similar problem? How to solve it?
>

Hi,
use all changelog from metalogger and master, then do restore. Should help.

blink

Re: [Moosefs-users] restoring from mfsmetalogger server

[Karol P. <kar...@ar...>]

Thanks for hint,

but I have still problem with mfsmaster and metadata.mfs.back file which 
isn't saved.
I'm afraid if I stop mfsmaster I will still have the same old file;/
Do you have any idea how to force mfsmaster (whitout stoping it) to save 
fresh metadata.mfs.back?

br.
Karol

On 05/14/2012 04:46 PM, Adam Ochmanski wrote:
> W dniu 12-05-14 14:45, Karol Pasternak pisze:
>> Hi all,
>>
>> I have problem with restoring metadata.mfs from mfsmetalloger.
>>
>> # mfsmetarestore -m metadata_ml.mfs.back -o /tmp/metadata.mfs 
>> changelog_ml*
>> loading objects (files,directories,etc.) ... ok
>> loading names ... ok
>> loading deletion timestamps ... ok
>> loading chunks data ... ok
>> checking filesystem consistency ... ok
>> connecting files and chunks ... ok
>> found garbage at the end of file: changelog_ml_back.0.mfs (last correct
>> id: 66424694)
>> hole in change files (entries from changelog_ml_back.1.mfs:66475886 to
>> changelog_ml.0.mfs:67436656 are missing) - add more files
>>
>> Anybody had similar problem? How to solve it?
>>
>
> Hi,
> use all changelog from metalogger and master, then do restore. Should 
> help.
>
> blink
>


-- 

Pozdrawiam/Best Regards

*Karol Pasternak
**Linux Administrator | ARBOmedia*

*_ka...@ar..._***
T +48 22 592 49 95 | M +48 785 555 184
*
ARBOmedia Polska | *Altowa 2 | 02-386 Warszawa*
www.arbomedia.pl* <http://www.arbomedia.pl/>** | T +48 22 592 45 00 | F 
22 448 71 63

ARBOmedia Polska Sp. z o.o., zarejestrowana w Sa;dzie Rejonowym dla 
m.st. Warszawy
w Warszawie, XII Wydzia? Gospodarczy Krajowego Rejestru Sa;dowego, pod 
numerem
KRS: 0000181362, kapita? zak?adowy wynosi 600 000 z?, NIP: 527-23-12-331

Re: [Moosefs-users] restoring from mfsmetalogger server

[Adam O. <bl...@bl...>]

W dniu 12-05-14 17:29, Karol Pasternak pisze:
> Thanks for hint,
>
> but I have still problem with mfsmaster and metadata.mfs.back file which
> isn't saved.
> I'm afraid if I stop mfsmaster I will still have the same old file;/
> Do you have any idea how to force mfsmaster (whitout stoping it) to save
> fresh metadata.mfs.back?

Do You have a free space on mfsmaster ?
Which version of mfs do You use ?
Any hints from syslog ?

blink

Re: [Moosefs-users] restoring from mfsmetalogger server

[Alexander A. <akh...@ri...>]

Hi!
You can start one more metalogger. When it starts it downloads all metadata from master.
So you can get metadata on metalogger than stop metalogger and try to start master on metalogger host
to check if your metadata is consistent. Than if yes - copy metadata from metalogger to real master.

Or you can force already running mfsmetalogger to download fresh metadata by
kill -HUP <mfsmetalogger PID>

wbr
Alexander

======================================================

Thanks for hint, 

but I have still problem with mfsmaster and metadata.mfs.back file which isn't saved.
I'm afraid if I stop mfsmaster I will still have the same old file;/
Do you have any idea how to force mfsmaster (whitout stoping it) to save fresh metadata.mfs.back?

br.
Karol

On 05/14/2012 04:46 PM, Adam Ochmanski wrote: 
W dniu 12-05-14 14:45, Karol Pasternak pisze: 
Hi all, 

I have problem with restoring metadata.mfs from mfsmetalloger. 

# mfsmetarestore -m metadata_ml.mfs.back -o /tmp/metadata.mfs changelog_ml* 
loading objects (files,directories,etc.) ... ok 
loading names ... ok 
loading deletion timestamps ... ok 
loading chunks data ... ok 
checking filesystem consistency ... ok 
connecting files and chunks ... ok 
found garbage at the end of file: changelog_ml_back.0.mfs (last correct 
id: 66424694) 
hole in change files (entries from changelog_ml_back.1.mfs:66475886 to 
changelog_ml.0.mfs:67436656 are missing) - add more files 

Anybody had similar problem? How to solve it? 


Hi, 
use all changelog from metalogger and master, then do restore. Should help. 

blink 



-- 


Pozdrawiam/Best Regards 
Karol Pasternak
Linux Administrator | ARBOmedia
kar...@ar... 
T +48 22 592 49 95 | M +48 785 555 184
 
ARBOmedia Polska | Altowa 2 | 02-386 Warszawa
www.arbomedia.pl  | T +48 22 592 45 00 | F 22 448 71 63
ARBOmedia Polska Sp. z o.o., zarejestrowana w Sadzie Rejonowym dla m.st. Warszawy
w Warszawie, XII Wydzial Gospodarczy Krajowego Rejestru Sadowego, pod numerem
KRS: 0000181362, kapital zakladowy wynosi 600 000 zl, NIP: 527-23-12-331