[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

[libvirt] Announcement of a companion project the "UnifiedSessionsManager"



Hello,
I would like to announce the unifiedSessionsManager(GPL3, including the claimed inventions), which is based for Xen on the virsh-tool, but basically uses a different approach. I guess it could be a quite usable companion of libvirt for advanced usage and enhanced customizabelity of the handling of huge amounts of virtual and physical machines in a distributed environment. It is targeting on test, development and productive
environments.

This requirement will particularly arise, when "bulk-core-CPUs" enter the market, providing for independently executed bulks of virtual machines, which may be logically designed as stacked and nested VMs, founding a
tree like multi-layered structure of VM clusters.

The design-preview as estimated by the unifiedSessionsManager is here the v-component, what could be seen as the extensin of the slogan/concept of a so called virtual appliance, where a full scale VM including it's inherent GuestOS is handeled as a virtual software component. V-Compoents are foreseen to be grouped into clusters of VMs, arranged within a nested VMSTACK and managed - e.g. suspended - as a group of services, founding a
combined service by their self.

In case this preview becomes reality, this may have an impact on the basic design, particularly the interface design of each of it's components to be stack-aware, thus for libvirt too. For example providing the shutdown of a stack of VMs, including the suspension of machines containing upper VMs, might require some kind of
communications and propagation..

The usage of multilayered VMSTACKs is already supported by the unifiedSessionsManager. Particularly MACRO and GROUP features support for handling of the number of entities required to be handled for a VMSTACK. Whereas much of the required functionality from the VMs is simulated, particularly by utilizing a recursive Stack-Propagation based on native access to GuestOSs with SSO-accounts.

The concrete supported products of current version 01_07_001b02 are:
- GuestOS and HostOS on physical machines: CentOS, Fedora, debian, OpenSUSE, Ubuntu,
  OpenBSD, Solaris10(limited)
- Hypervisors/Emulators: QEMU, Xn, VMware(workstation,server,player)

Future Plans are, mostly for the next version already:
-Planned-OS: FreeBSD, NetBSD, Solaris10(complete), OpenSolaris, ScientificLinux
-Planned-OS: eCos(?), uCLinux(several ARCH), SkyEye, ...
-Planned-VM: VirtualBOX(evaluation first), OpenVZ(evaluation first)

.Introduction of a LDAP based nameservice for VMs.

-Evaluation of:Cygwin

The Idea was the easy to adapt utilization of a minimalistic-bash-scripts only implementation for setting up a unified wrapper interface customizable for almost any kind of user sessions by almost anyone. Even though I would prefer now at least Perl or for specific parts full scale C/C++ code and Java/JavaScript
for some administrative parts.

The managed user environment comprises sessions to VMs which could be allocated in a nested multilayered VMSTACK as well as within a PM, which are physical machines - layer-0 entities. Also HOSTs sessions as
native access to GuestOSs are integrated.

Additionally a simple implemented but with sophisticated functionally equipped cache database is introduced in order to support for hundreds and thousands of virtual machines to be managed, with an average query-response-time for single-level-filters of less than 1second. Results are measured with an average of 0.3-0.8seconds in the ref.-env., even though bash and awk is mainly used only with an Office-Compatible
record format.

Information could be found within the User-Manual, which has more than 600pages, and within the sources
of more than 110.000LinesOfCode.

The following sites provide downloads:

http://www.heise.de/software/download/unified_sessions_manager_ctys/51630
http://www.unifiedsessionsmanager.org
http://www.unifiedsessionsmanager.eu
http://sourceforge.net/projects/ctys (sourceforge not yet complete)
(berlios follows)


There are basically three reasons for sending this Mail:

1. Announcing a new supplemental project focusing on usage of distributed and stacked VMs 2. Getting some feedback and ideas for the future direction of the development of libvirt and the
   unifiedSessionsManager.
3. Probably initiation of setting up a common overall concept for the future vision of an IT environment
   and it's integrated handling of VMs.

And of course, I would appreciate, if the current version already is of some benefit for the OpenSource
community.

Yours Sincerely
Arno-Can Uestuensoez

--
----------------------------------------------------------------------------

                  Arno-Can Uestuensoez

               www.i4p.de  / www.i4p.com


[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]