Re: Nilfs features

[Dave <dave-/hCUnnzDXf0AvxtiuMwx3w@public.gmane.org>]

On 05/31/09 20:20, Ryusuke Konishi wrote:
> Hi,
> On Tue, 26 May 2009 08:20:51 +0900 (JST), Ryusuke Konishi wrote:
>> Hi,
>> On Mon, 25 May 2009 13:46:14 +0400, Dave wrote:
>>> In addition to this there doesn't seem to be a way to delete a range of 
>>> checkpoints. When i did my restore from my archive, i generated 700+ 
>>> useless checkpoints which i had to delete one by one (in a script). It 
>>> would be nice to have a 'rmcp 1-100' or 'rmcp -100' or 'rmcp 100-' to 
>>> delete a checkpoint range, a start to end.
>> Okay, I'll take in this in some form.
> 
> For the moment, I've added this feature and pushed it into the git
> tree.
> 
> (Instead of '1-100', '-100', or '10..', I took notation like '1..100',
>  '..100', or '10..' respectively, according to the git tool)
> 
> If you would like to try it soon, please see
> 
>  http://www.nilfs.org/git/
> 
> for download/build information.
> 
> I'll include it in the next release of the utility package.
> 

Hi Ryusuke,

I've tried this and it seems to work perfectly. Thanks for the quick 
feature addition.

It seems that i still have to wait for cleanerd to kick in to reclaim 
the space even though i clearly cannot get to a checkpoint i've just 
deleted. I believe we should reclaim immediately (but perhaps this is 
harder to implement)...


bash-3.2# df -h .
Filesystem            Size  Used Avail Use% Mounted on
/dev/sdb2              39G  9.0G   28G  25% /home
bash-3.2# cp /shared/1gb .
bash-3.2# df -h .
Filesystem            Size  Used Avail Use% Mounted on
/dev/sdb2              39G   10G   27G  28% /home
bash-3.2# lscp | tail
               155133  2009-06-02 12:12:27   cp    i       6662     253255
               155134  2009-06-02 12:12:29   cp    -         35     253255
               155135  2009-06-02 12:12:32   cp    i       6622     253255
               155136  2009-06-02 12:12:37   cp    i       6587     253255
               155137  2009-06-02 12:12:42   cp    i       6654     253255
               155138  2009-06-02 12:12:47   cp    i       6744     253255
               155139  2009-06-02 12:12:52   cp    i       6524     253255
               155140  2009-06-02 12:12:57   cp    i       6762     253255
               155141  2009-06-02 12:13:02   cp    i       6670     253255
               155142  2009-06-02 12:13:07   cp    -       6748     253255
bash-3.2# rm 1gb
bash-3.2# df -h .
Filesystem            Size  Used Avail Use% Mounted on
/dev/sdb2              39G   10G   27G  28% /home
bash-3.2# lscp|tail
               155151  2009-06-02 12:13:29   cp    -         35     253188
               155152  2009-06-02 12:13:35   cp    -        237     253229
               155153  2009-06-02 12:13:37   cp    -       6334     253238
               155154  2009-06-02 12:13:42   cp    -       8380     253255
               155155  2009-06-02 12:13:47   cp    i       7987     253255
               155156  2009-06-02 12:13:52   cp    i       3743     253255
               155157  2009-06-02 12:13:57   cp    i       8092     253255
               155158  2009-06-02 12:14:02   cp    i       7991     253255
               155159  2009-06-02 12:14:07   cp    i       7986     253255
               155160  2009-06-02 12:14:12   cp    -       9129     253254
bash-3.2# rmcp ..155160
bash-3.2# lscp|tail
                  CNO        DATE     TIME  MODE  FLG   NBLKINC       ICNT
               155161  2009-06-02 12:14:17   cp    i       6839     253254
               155162  2009-06-02 12:14:22   cp    i       7012     253254
               155163  2009-06-02 12:14:27   cp    -       6886     253255
               155164  2009-06-02 12:14:29   cp    -         51     253254
               155165  2009-06-02 12:14:32   cp    i       6737     253254
               155166  2009-06-02 12:14:37   cp    i       2618     253254
bash-3.2# df -h .
Filesystem            Size  Used Avail Use% Mounted on
/dev/sdb2              39G   10G   27G  28% /home



much appreciated.
Dave