[lustre-discuss] lfs find

[Vitaly Fertman]

I think it concerns all the fp_exclude_* ones which are not using find_value_cmp,
those already have +/- functionality. 

so just a quick grep without deep analysis of each:
				 fp_exclude_pattern:1,
				 fp_exclude_type:1,
				 fp_exclude_obd:1,
				 fp_exclude_mdt:1,
				 fp_exclude_gid:1,
				 fp_exclude_uid:1,
				 fp_exclude_pool:1,
				 fp_exclude_layout:1,
				 fp_exclude_projid:1,
				 fp_exclude_comp_id:1,
				 fp_exclude_hash_type:1,


> On 26 Apr 2019, at 18:39, Patrick Farrell <pfarrell at whamcloud.com> wrote:
> 
> Would you mind listing current lfs find options to help kickstart discussion?
> 
> It seems like I might want it for lots of them, maybe close to all - For example, stripe size seems at first (to me) it wouldn't be useful, but what if I want to check to see if anyone is using a weird stripe size?  I expect stripe size to be 1 MiB, and if I can search for ! that, then I can find users who set weird stripe sizes and help them fix it.
> 
> - Patrick
> From: lustre-discuss <lustre-discuss-bounces at lists.lustre.org> on behalf of Vitaly Fertman <c17818 at cray.com>
> Sent: Friday, April 26, 2019 10:35:54 AM
> To: lustre-discuss at lists.lustre.org
> Subject: [lustre-discuss] lfs find
>  
> Hi
> 
> during a discussion of a bug in lfs find, an improvement idea appeared, it is well
> described by Andreas below, and this thread is to discuss which options may need this
> functionality.
> 
> 
> > On 26 Apr 2019, at 03:41, Andreas Dilger <adilger at whamcloud.com> wrote:
> > 
> >  lfs find ! --pool HDD ...
> > 
> > should IMHO find files that do not have any instantiated components in pool HDD, rather than files that have any component not on HDD. 
> > 
> > That said, I could imagine that we may need to make some parameters more flexible, like adding "--pool =<poolname>"  to allow specifying all components on the specified pool, and possibly + to specify "at least one component" (which would be the same as without "+" but may be more clear to some users)?  
> > 
> > A similar situation arose with "-mode" for regular find (any vs. all bits) that took a while to sort out, so we should learn from what they did and get it right. 
> 
> —
> Vitaly Fertman
> _______________________________________________
> lustre-discuss mailing list
> lustre-discuss at lists.lustre.org
> http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org

—
Vitaly Fertman