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

[Jan-Frode Myklebust]

No, but you can reduce to one replica, if it’s a replicated file system. I
think that’s the only space saving feature available.



 -jf

tir. 5. des. 2023 kl. 18:10 skrev Billich Heinrich Rainer (ID) <
heinrich.billich at id.ethz.ch>:

> 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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