[gpfsug-discuss] setxattr via policy

[Marcus Koenig]

Thanks guys - will test it now - much appreciated.

On Wed, Nov 22, 2017 at 10:20 PM, Jez Tucker <jtucker at pixitmedia.com> wrote:

> Hi Marcus,
>
>   Something like this should do you:
>
> RULE 'setxattr' LIST 'do_setxattr'
> FOR FILESET ('xattrfileset')
> WEIGHT(DIRECTORY_HASH)
> ACTION(SETXATTR('user.testflag1','projectX'))
> WHERE
>     KB_ALLOCATED >  [insert required file size limit]
>
>
> Then with one file larger and another file smaller than the limit:
>
> root at elmo:/mmfs1/policies# getfattr -n user.testflag1
> /mmfs1/data/xattrfileset/*
> getfattr: Removing leading '/' from absolute path names
> # file: mmfs1/data/xattrfileset/file.1
> user.testflag1="projectX"
>
> /mmfs1/data/xattrfileset/file.2: user.testflag1: No such attribute
>
>
> As xattrs are a superb way of automating data operations, for those of you
> with our Python API have a look over the xattr examples in the git repo:
> https://github.com/arcapix/gpfsapi-examples as an alternative Pythonic
> way to achieve this.
>
> Cheers,
>
> Jez
>
>
>
>
> On 22/11/17 03:13, Marcus Koenig wrote:
>
> Hi there,
>
> I've got a question around setting userdefined extended attributes. I have
> played around a bit with setting certain attributes via mmchattr - but now
> I want to run a policy to do this for me for certain filesets or file sizes.
>
> How would I write my policy to set an attribute like
> user.testflag1=projectX on a number of files in a fileset that are bigger
> than 1G for example?
>
> Thanks folks.
>
> Cheers,
> Marcus
>
>
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>
> --
> *Jez Tucker*
> Head of Research and Development, Pixit Media
> 07764193820 <07764%20193820> | jtucker at pixitmedia.com
> www.pixitmedia.com | Tw:@pixitmedia.com <https://twitter.com/PixitMedia>
>
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