Am 22.10.2010 um 14:09 schrieb Vasiliy G Tolstov: > On Fri, 2010-10-22 at 14:07 +0200, Reuti wrote: >> Hi, >> >> Am 22.10.2010 um 10:58 schrieb Vasiliy G Tolstov: >> >>> Hello. May be this question already answered, but i can't see it in list >>> archive. >>> >>> I'm running about 60 Xen nodes with about 7-20 virtual machines under >>> it. I want to gather disk,cpu,memory,network utilisation from virtual >>> machines and get it into database for later processing. >>> >>> As i see, my architecture like this - One or two master servers with mpi >>> process with rank 0, that can insert data into database. This master >>> servers spawns on each Xen node mpi process, that gather statistics from >>> virtual machines on that node and send it to masters (may be with >>> multicast request). On each virtual machine i have process (mpi) that >>> can get and send data to mpi process on each Xen node. Virtual machine >>> have ability to migrate on other Xen node.... >> >> do you want just to monitor the physical and virtual machines by an >> application running under MPI? It sounds like it could be done by Ganglia or >> Nagios then. > > No.. I want to get realtime data to decide what virtual machine i need > to migrate to other Xen, becouse it need more resources.
This is indeed an interesting field, as it was a couple of times also on the SGE Gridengine mailing list: how to handle jobs with varying resource requests over their lifetime, and how should they signal it (or provide it already in the `qsub` command) to the queuing system, that they now have to move to another bigger node (or could be moved to a smaller node with less resources). -- Reuti
