[gpfsug-discuss] Mmapplypolicy: Can I compress lists on the fly, before write to disk?
Jan-Frode Myklebust
janfrode at tanso.net
Thu Dec 7 20:25:48 GMT 2023
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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