[gpfsug-discuss] mmfind -ls and so forth

[Marc A Kaplan]

(John Hearns, et. al.)

Some minor script hacking would be the easiest way add test(s) for other 
MISC_ATTRIBUTES

Notice mmfind concentrates on providing the most popular classic(POSIX) 
and Linux predicates, BUT also adds a few gpfs specific predicates
(mmfind --help show you these)  -ea -eaWithValue -gpfsImmut -gpfsAppOnly

Look at the implementation of  -gpfsImmut in  tr_findToPol.pl ...

sub tr_gpfsImmut{
  return "( /* -gpfsImmut */ MISC_ATTRIBUTES LIKE '%X%')";
}


So easy to extend this for any or all the others....  True it's perl, but 
you don't have to be a perl expert to cut-paste-hack another predicate 
into the script.

Let us know how you make out with this...
Perhaps we shall add  a general predicate -gpfsMiscAttrLike '...'   to the 
next version...

-- Marc K of GPFS



From:   John Hearns <john.hearns at asml.com>
To:     gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Date:   03/08/2018 04:59 AM
Subject:        Re: [gpfsug-discuss] mmfind -ls and so forth
Sent by:        gpfsug-discuss-bounces at spectrumscale.org



On the subject of mmfind,
I would like to find files which have the misc attributes relevant to AFM.
For instance files which have the attribute ‘v’ The file is newly created, 
not yet copied to home
I can write a policy to do this, and I have a relevant policy written.
 
However I would like to do this using mmfind, which seems a nice general 
utility.
This syntax does not work:
 
mmfind /hpc -eaWithValue MISC_ATTRIBUTES===v
 
Before anyone says it, I am mixing up MISC_ATTRIBUTES and extended 
attributes!
My question really is – has anyone done this sort of serch using mmfind?
 
Thankyou
 
 
 
From: gpfsug-discuss-bounces at spectrumscale.org [
mailto:gpfsug-discuss-bounces at spectrumscale.org] On Behalf Of Marc A 
Kaplan
Sent: Wednesday, March 07, 2018 8:16 PM
To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Subject: Re: [gpfsug-discuss] mmfind -ls and so forth
 
As always when dealing with computers and potentially long running jobs, 
run a test on a handful of files first, so you can rapidly debug.
Did you read the mmfind.README ?

It mentions...that this sample utility "some user assembly required..." 
... 

mmfindUtil_processOutputFile.c
  A utility to parse the "list file" produced by mmapplypolicy and to 
print
    it in a find-compatible format
  mmfind invokes it once mmapplypolicy begins to populate the "list file"

mmfindUtil_processOutputFile.sampleMakefile
  copy to 'makefile', modify as needed, and run 'make' to compile 
mmfindUtil_processOutputFile.c
  This should produce a binary called mmfindUtil_processOutputFile
  mmfind will not be able to run until this utility has been compiled
  on the node from which you launch mmfind.

Works for me...
[root at n2 ilm]# ./mmfind /goo/zdbig -ls
2463649  256 drwxr-xr-x   2 root     root       262144 Feb  9 11:41 
/goo/zdbig
6804497    0 -rw-r--r--   1 root     root            0 Feb  9 11:41 
/goo/zdbig/xy
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