[Lustre-discuss] Swap over lustre

Phil Sharfstein psharfstein at vrinc.com
Thu Aug 18 11:37:36 PDT 2011

Since you are considering other options, I would recommend NBD swap for this type of minimal swapping application.  Look at the Linux Terminal Server Project (LTSP) implementation using nbdswapd, a simple inetd-driven script that creates and exports NBD swap spaces.  We have been using this successfully on our diskless nodes for several years.

You can grab the nbdswapd script for the server-side and the ltsp-init-common script for an example client setup from any of the latest LTSP binary distributions.


-----Original Message-----
From: lustre-discuss-bounces at lists.lustre.org on behalf of John Hanks
Sent: Thu 8/18/2011 7:30 AM
To: Temple Jason
Cc: lustre-discuss at lists.lustre.org
Subject: Re: [Lustre-discuss] Swap over lustre
On Thu, Aug 18, 2011 at 12:36 AM, Temple  Jason <jtemple at cscs.ch> wrote:
> Hello,
> I experimented with swap on lustre in as many ways as possible (without touching the code), and had the shortest path possible to no avail.  The code is not able to handle it at all, and the system always hung.
> Without serious code rewrites, this isn't going to work for you.
> -Jason

Lacking the skills and time for what Andreas suggested, I think my
approach will be to abandon this direction for the moment. Thanks to
everyone for your responses. If I find time to learn how to provide
useful debugging and feedback, the list will be the first to know :)

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