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<p class="MsoNormal">Hi folks,</p>
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<p class="MsoNormal">We’re currently investigating a way to check for stale file handles on the nodes across our cluster in a way that minimizes impact to the filesystem and performance.</p>
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<p class="MsoNormal">Has anyone found a direct way of doing so? We considered a few methods, including simply attempting to ls a GPFS filesystem from each node, but that might have false positives, (detecting slowdowns as stale file handles), and could negatively
impact performance with hundreds of nodes doing this simultaneously.</p>
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<p class="MsoNormal">Thanks,</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Alex</p>
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<p class="MsoNormal">Senior Systems Administrator<br>
<br>
Research Computing Infrastructure<br>
Northwestern University Information Technology (NUIT)<br>
<br>
2020 Ridge Ave<br>
Evanston, IL 60208-4311<br>
<br>
O: (847) 491-2219<br>
M: (312) 887-1881<br>
www.it.northwestern.edu</p>
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