| Line 176: | Line 176: | ||
machines and a web-based virtual machine management console." | machines and a web-based virtual machine management console." | ||
<references /> | <references /> | ||
Revision as of 00:45, 29 March 2009
Virtualization
In this section, we cover discussion on the @et-mgmnt-tools-list, @fedora-xen-list, @libvirt-list and @ovirt-devel-list of Fedora virtualization technologies.
Contributing Writer: Dale Bewley
Fedora Virtualization List
This section contains the discussion happening on the fedora-virt list.
KVM and QEMU Merge Feature Stays in Fedora 11
After missing the previous
round (FWN #165[1])
and some development delay, the KVM and QEMU package merge
feature[2]
of Fedora 11 has been marked as
accepted by the Fedora Engineering Steering Committee[3].
"Currently, there is both a 
qemuKVM package's source is a fork of the QEMU source, but KVM regularily re-bases to the latest QEMU source and merging of KVM support into the QEMU code base is actively under-way."
Fedora Virtualization Status Report
After a few weeks off, Mark McLoughlin reached back into the future and produced an exhaustive status report[1] covering all the developments in fedora Virtualization for the last month. Grab a bowl of popcorn and dig in!
Fedora Xen List
This section contains the discussion happening on the fedora-xen list.
Success with Experimental Fedora 10 pv_ops dom0
Users are continuing to build experimental kernels with pv_ops dom0[1] support.
Pasi Kärkkäinen
was happy to
report[2]
success getting a
"custom Xen pv_ops dom0 kernel working with
virt-install and/or
"I was able to run the following on Fedora 10 32bit PAE pv_ops dom0:"
- CentOS 5.3 32bit PAE PV domU
- Fedora 10 32bit PAE PV domU (using
virt-installand custom kickstart to force PAE kernel installation to avoid the anaconda BUG[3])
Pasi was successful by using:
- pv_ops dom0 kernel (2.6.29-rc8 or newer) "Compile with
CONFIG_HIGHPTE=nsince it seems to be broken still" 
libvirt- LVM volumes for domU disks (
tap:aiois not yet supported bypv_opsdom0 kernel)
Yum Repository for Experimental Dom0 Kernels
Since Koji removes scratch builds after some time,
Michael Young
created[1]
a repository[2]
for the experimental Dom0 capable[3] kernels he's experimenting with.
Libvirt List
This section contains the discussion happening on the libvir-list.
More Formal libvirt Release Scheduling
After
Daniel Veillard
proposed a
- Monthly releases aiming for the 1st of the month.
- Any non-trivial new feature for release must be reviewed, approved and committed at least 1 week before the release.
Daniel Berrange is also "working on an integration test suite, which will enable us to run automated tests against individual hypervisor drivers. This will help us detect regressions in hypervisor drivers, and more importantly let us ensure that all drivers are implementing consistent semantics for their APIs."
Daniel Veillard tended[3] "to agree on the approximate rule of one release every months [sic] but I would like to keep this flexible" and offered this schedule for the next 2 releases:
- 0.6.2:
- commit feature freeze: Tuesday 31 Mar
- expected release date: Friday 3 Apr
- 0.6.3:
- commit feature freeze: Friday 17 Apr
- expected release date: Friday 24 Apr
New Release perl-Sys-Virt 0.2.0
Daniel Berrange
announced[1]
an update of the Perl binding for libvirt,
New features:
- Fix network create API, and UUID lookups
- Implement storage pool, storage vol, node device, security model, domain events and event loop APIs
- Improve way constants are exposed to Perl layer
- Fix horrible memory leak in methods returning a hash
- Fix integer overflow in APIs using 64-bit ints (aka 'long long')
- Minimum required libvirt C library for building is 0.6.1
SCSI Host Pools Patch
David Allan has been working[1] on a reworked SCSI host storage pool[2] patch for some time, and appears to be close to ironing out all the bugs.
API for Host Interface Configuration
The Shared Network Interface
feature[1]
was deferred to Fedora 12 while
David Lutterkort
continues to work on netcf[2]
(FWN #164[3]).
Now Laine Stump
has posted[4]
"a first attempt at the public API that will hook up to libnetcf on the libvirtd side."
Web Based libvirt Management
Radek Hladik is
developing[1]
"a simple web application in PHP to monitor and control VMs using libvirt."
The stateless nature of the web presents efficiency problems when each action
must call out to the virsh command. Radik sought advice on
picking from a list of approaches.
Daniel Berrange picked[2] door number two, which is to create a libvirt-aware Zend extension in C. "A few people have expressed interest in this idea in the past, but unforatuntely I'm not aware of anyone having written any code for this yet. We'd very much like to see a PHP binding for libvirt developed & happy to give advice/support to anyone attempting this."
Russell Haering
mentioned[3]
a Django (python) WebApp he's working on, called virtadmin[4]. To bridge the stateless to stateful gap, the
"system consists of a python daemon used for actual libvirt
interaction and a separate django web interface that interacts with the
daemon via AMF over https."
Although more of an appliance, it is also worth mentioning oVirt[5]. "oVirt is a small host image that provides libvirt service and hosts virtual machines and a web-based virtual machine management console."