[ale] lsof and a hung system

[Ed Cashin]

On Mon, Oct 19, 2015 at 10:58 PM, Jim Kinney <jim.kinney at gmail.com> wrote:
...

> Other system with same nfs mounted storage is fine. Storage server is
> connected to both number crunchers by dedicated, unswitched 10Gbps fiber
> ethernet.
> >
>

You mean with direct connections?  In that case, the other number
cruncher's connection could be fine, while the affected system could not be
able to do networking to the NFS server (for some as yet undetermined
reason), which could result in the behavior you describe if the NFS mount
is "hard".

-- 
  Ed Cashin <ecashin at noserose.net>
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