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Thank you.<br>
<br>
Is there any documentation for the values?<br>
Client-side means only statistics for the file remaining in the
client cache? Not lifetime statistics?<br>
Are there any plans to work further on this feature?<br>
<br>
I think of several use cases when knowing these stats.<br>
Cold data could be moved to archive like slow tape without relying
on access time.<br>
Hot blocks could be replicated or moved to faster caches and lot
more optimizations.<br>
<br>
Best regards<br>
Anna<br>
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<div class="moz-cite-prefix">Am 18.02.2023 um 21:57 schrieb Andreas
Dilger:<br>
</div>
<blockquote type="cite"
cite="mid:F62444B8-0995-4FD6-A4EE-4BDFEEB00442@whamcloud.com">
<pre class="moz-quote-pre" wrap="">Anna, there was a client-side file heat mechanism added a few years ago, but I don't know if it is fully functional today.
lctl get_param llite.*.*heat*
llite.myth-ffff979380fc1800.file_heat=1
llite.myth-ffff979380fc1800.heat_decay_percentage=80
llite.myth-ffff979380fc1800.heat_period_second=60
And then "lfs heat_get <file>" to dump the file heat, it there haven't been any good tools developed yet to list top heat files.
Cheers, Andreas
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<blockquote type="cite">
<pre class="moz-quote-pre" wrap="">On Feb 7, 2023, at 08:56, Anna Fuchs via lustre-discuss <a class="moz-txt-link-rfc2396E" href="mailto:lustre-discuss@lists.lustre.org"><lustre-discuss@lists.lustre.org></a> wrote:
Hello,
is there a way to see how many times a file has been accessed ever (like a heat map)?
Thanks
Anna
--
Anna Fuchs
Universität Hamburg
<a class="moz-txt-link-freetext" href="https://wr.informatik.uni-hamburg.de">https://wr.informatik.uni-hamburg.de</a>
<a class="moz-txt-link-abbreviated" href="mailto:anna.fuchs@informatik.uni-hamburg.de">anna.fuchs@informatik.uni-hamburg.de</a>
<a class="moz-txt-link-freetext" href="https://wr.informatik.uni-hamburg.de/people/anna_fuchs">https://wr.informatik.uni-hamburg.de/people/anna_fuchs</a>
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</pre>
</blockquote>
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<br>
<pre class="moz-signature" cols="72">--
Anna Fuchs
Universität Hamburg
<a class="moz-txt-link-freetext" href="https://wr.informatik.uni-hamburg.de">https://wr.informatik.uni-hamburg.de</a>
<a class="moz-txt-link-abbreviated" href="mailto:anna.fuchs@informatik.uni-hamburg.de">anna.fuchs@informatik.uni-hamburg.de</a>
<a class="moz-txt-link-freetext" href="https://wr.informatik.uni-hamburg.de/people/anna_fuchs">https://wr.informatik.uni-hamburg.de/people/anna_fuchs</a></pre>
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