Re: [Moosefs-users] Strange chunk of goal 0, 1 copy

[Michal B. <mic...@ge...>]

Please go to the web monitor and on the "Master Charts" check the "chunk deletions (per minute)" chart. Is there any information about deleted chunks? You can also send to me a screenshot of them.


Kind regards
Michal


-----Original Message-----
From: leo...@ar... [mailto:leo...@ar...] 
Sent: Wednesday, December 29, 2010 11:02 AM
To: Michal Borychowski
Cc: moo...@li...
Subject: RE: [Moosefs-users] Strange chunk of goal 0, 1 copy

Interesting, ... 
More than a day have passed, there should be plenty of idle time, 
the filesystem is almost not written to or read from. The discussed chunk
is still there.
And is it normal in this situation that ...

---------------------------------
%sudo find /mnt/mfs_meta/
/mnt/mfs_meta/
/mnt/mfs_meta/trash
/mnt/mfs_meta/trash/undel
/mnt/mfs_meta/reserved
%
---------------------------------

shows no deleted files?...



On Wed, 29 Dec 2010 09:30:50 +0100, "Michal Borychowski"
<mic...@ge...> wrote:
> Hi Leonid!
> 
> This is normal. This is a way to mark chunks belonging to the
non-existing
> files (i.e. deleted ones). Deleting of files is done asynchronously in
> MooseFS. First a file is removed from metadata and its chunks are marked
as
> unnecessary (goal=0). Later the chunks are removed in an "idle" time.
This
> is much more effective than to erase everything in the moment of
deleting
> the file.
> 
> 
> Regards
> Michal
> 
> 
> 
> -----Original Message-----
> From: Leonid Satanovsky [mailto:leo...@ar...] 
> Sent: Tuesday, December 28, 2010 2:31 PM
> To: moo...@li...
> Subject: [Moosefs-users] Strange chunk of goal 0, 1 copy
> 
> Greetings, everyone!
> Recently while experementing with MooseFS 1.6.19 on FreeBSD 7.2 I came
to
> the following strange state:
> Web interface shows me that there is 1 copy of a chunk of goal 0.
> What is the chunk?...
> I have only files in the root directory of the MooseFS.
> 
> % sudo mfsfileinfo /mnt/mfs_test/* | grep chunk | wc -l
>       16
> So, these are 16 chunks of goal 2 which web interface correctly shows
me.
> Where the strage "17th chunk" comes from (All FS objects = 17)? Why has
it
> goal 0?...
> How can I figure it out?...
> -------------------------------------
> Gzipped metadata.mfs.back is in attachments.
> I'w greatly appreciate any help on the subject.
> Best regards, Leonid.