[Lustre-discuss] flock/lockf support

[Brian J. Murrell]

On Thu, 2008-02-14 at 11:16 -0800, Joe Little wrote:
> The roadmap (links to that on google fail, but found a PDF) reports
> that 1.6 release marks lockf/flock support as possible/untested. I see
> from the changelogs that it should be there. I have setup a lustre
> filesystem for use in the CAD space for simulations. ModelSim, for
> whatever reason, is failing to lock files in the its chain of
> attempted lock mechanisms, and in the end tries and fails to use NFS
> style locks, or so the CAD guys tell me. I'm curious if this _should_
> work on 1.6, and if not, is there a relatively accessible 1.8 build
> with this currently?

Hi Joe,

Yes, the support is better and better the more recent the release.  But
even as of a number of releases ago, localflock should be working.  If
you don't need cluster coherent locks, just applications on a single
single not failing because of missing flock semantics, localflock is the
better option to use.

If you really do need cluster coherent flock, you should use a recent
(i.e. 1.6.4.2) a release as you can.

b.

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