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In Python 2 the raise command can take 3 objects as arguments which
are used to specify the exception to be raise as well as detailed
information and traceback [1].
In Python 3 the sintax is changed and now the keyword "from" and
"with_traceback" keyworkds are used to specify this information. [2]
Example which has the same behaviour for both Python 2 and 3:
try:
a = 1/0
except Exception:
import sys
err = sys.exc_info()
try:
raise Exception("Test")
except:
pass
if sys.version_info[0] == 2:
exec("raise err[0], err[1], err[2]")
else:
raise
The `ipaddress` is available in Python 3.3+ [1] and backport for
Python 2 is available on PyPI [2].
The main differences between ipaddr and ipaddress are:
- ipaddress *Network classes are equivalent to the ipaddr *Network
class counterparts with the strict flag set to True.
- ipaddress *Interface classes are equivalent to the ipaddr *Network
class counterparts with the strict flag set to False.
- The factory functions in ipaddress were renamed to disambiguate them
from classes.
- A few attributes were renamed to disambiguate their purpose as well.
(eg. network -> network_address, numhosts -> num_addresses)
- A number of methods and functions which returned containers in ipaddr
now return iterators. This includes subnets, address_exclude,
summarize_address_range and collapse_address_list.
Another major difference is that in Python 2 the `ipaddress` module
must use unicode. [3]
[1] https://www.python.org/dev/peps/pep-3144/
[2] https://pypi.python.org/pypi/ipaddress
[3] https://github.com/phihag/ipaddress
Add vcpupin support to virt-install so that it can create guest
domains with statically allocated vcpu pinning towards a given cpuset.
Syntax: to pin vcpu=0 to cpuset="1,3" and vcpu=1 to cpuset=2
--cputune vcpupin0.vcpu=0,vcpupin0.cpuset=1,3,vcpupin1.vcpu=1,vcpupin1.cpuset=2
generates below XML description for the guest domain.
<cputune>
<vcpupin vcpu="0" cpuset="1,3"/>
<vcpupin vcpu="1" cpuset="2"/>
</cputune>
Signed-off-by: Wim ten Have <wim.ten.have@oracle.com>
Signed-off-by: Menno Lageman <menno.lageman@oracle.com>
Now that libvirt has support for administration of distances between NUMA cells
it would be nice to be able to set those with virt-install directly instead of
having to 'virsh edit' the domain XML manually after installation.
For example
--cpu cell0.memory=1234,cell0.cpus=0-3,cell1.memory=5678,cell1.cpus=4-7,\
cell0.distances.sibling0.id=0,cell0.distances.sibling0.value=10,\
cell0.distances.sibling1.id=1,cell0.distances.sibling1.value=21,\
cell1.distances.sibling0.id=0,cell1.distances.sibling0.value=21,\
cell1.distances.sibling1.id=1,cell1.distances.sibling1.value=10
would generate the following XML:
<cpu>
<numa>
<cell cpus="0-3" memory="1234">
<distances>
<sibling id="0" value="10"/>
<sibling id="1" value="21"/>
</distances>
</cell>
<cell cpus="4-7" memory="5678">
<distances>
<sibling id="0" value="21"/>
<sibling id="1" value="10"/>
</distances>
</cell>
</numa>
</cpu>
Signed-off-by: Menno Lageman <menno.lageman@oracle.com>
(crobinso: rework cli format, drop some validation, drop man changes)
Fix all E125:
Continuation line with same indent as next logical line
Also remove ignore options of E125
Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com>
In Python 2 comparison between int and None is allowed but in
Pyhton 3 it is not.
Example:
Pyhton 2
>>> None > 0
False
Python 3
>>> None > 0
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: '>' not supported between instances of 'NoneType' and 'int'
We cannot use os.statvfs() if the clone disk is a block device because
it gets stats about filesystem which in this case is "devtmpfs" mounted
as "/dev".
As a workaround we can seek to the end of the block device to get
the actual size.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1450908
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
If we convert to long the disk size, it may end up "0". The size is
in GiB so it can be "0.1".
Introduced by commit <fab55c128ff3f092039bb950ecfd337568d2a9a8>.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
