[gpfsug-discuss] Mmapplypolicy: Can I compress lists on the fly, before write to disk?

[scale]

Hi Heinrich,

Mmapplypolicy does not compress the listfile that contains meta information of all selected files.

Regards

From: gpfsug-discuss <gpfsug-discuss-bounces at gpfsug.org> on behalf of Billich Heinrich Rainer (ID) <heinrich.billich at id.ethz.ch>
Date: Tuesday, December 5, 2023 at 12:11 PM
To: gpfsug-discuss at gpfsug.org <gpfsug-discuss at gpfsug.org>
Subject: [EXTERNAL] [gpfsug-discuss] Mmapplypolicy: Can I compress lists on the fly, before write to disk?
Hello,

Can I compress file-lists generated by mmapplypolicy on-the-fly, i.e. before they get written to disk? I write lists with extra Metadata for each file, which tend to get large.

I use this rule and run it with "-I defer"

RULE 'allFiles'
   LIST 'lst'
   SHOW('! '||
        vc(FILE_SIZE)        ||';'||
        MODE                 ||';'||
        vc(MODIFICATION_TIME)||';'||
        ... some more ...
        vc(MODIFICATION_SNAPID)
        ||' !')
   DIRECTORIES_PLUS


Thank you,

Heiner
--
ETH Zürich
Heinrich Billich
Informatikdienste
Tel.: +41 44 632 72 56
heinrich.billich at id.ethz.ch
https://www.id.ethz.ch




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