I've found that even with the Protocal Error, it still works. -Jason
-----Original Message----- From: lustre-discuss-boun...@lists.lustre.org [mailto:lustre-discuss-boun...@lists.lustre.org] On Behalf Of Michael Shuey Sent: martedì, 25. gennaio 2011 14:45 To: Michael Kluge Cc: Lustre Diskussionsliste Subject: Re: [Lustre-discuss] "up" a router that is marked "down" You'll want to add the "dead_router_check_interval" lnet module parameter as soon as you are able. As near as I can tell, without that there's no automatic check to make sure the router is alive. I've had some success in getting machines to recognize that a router is alive again by doing an lctl ping of their side of a router (e.g., on a tcp0 client, `lctl ping <routerIP>@tcp0`, then `lctl ping <routerIP>@o2ib0` from an o2ib0 client). If you have a server/client version mismatch, where lctl ping returns a protocol error, you may be out of luck. -- Mike Shuey On Tue, Jan 25, 2011 at 8:38 AM, Michael Kluge <michael.kl...@tu-dresden.de> wrote: > Hi list, > > if a Lustre router is down, comes back to life and the servers do not > actively test the routers periodically: is it possible to mark a Lustre > router as "up"? Or to tell the servers to ping the router? > > Or can I enable the "router pinger" in a live system without unloading > and loading the Lustre kernel modules? > > > Regards, Michael > > -- > > Michael Kluge, M.Sc. > > Technische Universität Dresden > Center for Information Services and > High Performance Computing (ZIH) > D-01062 Dresden > Germany > > Contact: > Willersbau, Room A 208 > Phone: (+49) 351 463-34217 > Fax: (+49) 351 463-37773 > e-mail: michael.kl...@tu-dresden.de > WWW: http://www.tu-dresden.de/zih > > _______________________________________________ > Lustre-discuss mailing list > Lustre-discuss@lists.lustre.org > http://lists.lustre.org/mailman/listinfo/lustre-discuss > > _______________________________________________ Lustre-discuss mailing list Lustre-discuss@lists.lustre.org http://lists.lustre.org/mailman/listinfo/lustre-discuss _______________________________________________ Lustre-discuss mailing list Lustre-discuss@lists.lustre.org http://lists.lustre.org/mailman/listinfo/lustre-discuss