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Like we did for conductor, this makes the scheduler lazy-load the
placement client instead of only doing it during __init__. This avoids
a startup crash if keystone or placement are not available, but
retains startup failures for other problems and errors likely to be
a result of misconfigurations.
Closes-Bug: #2012530
Change-Id: I42ed876b84d80536e83d9ae01696b0a64299c9f7
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When offloading a shelved instance, the compute needs to remove the
binding so the port will appear as "unbound" in neutron.
Closes-Bug: 1983471
Change-Id: Ia49271b126870c7936c84527a4c39ab96b6c5ea7
Signed-off-by: Arnaud Morin <arnaud.morin@ovhcloud.com>
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Emptying the cpu init file and directly calling the submodule API.
Relates to blueprint libvirt-cpu-state-mgmt
Change-Id: I1299ca4b49743f58bec6f541785dd9fbee0ae9e2
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This reverts commit 1778a9c589cf24e17b44f556680b17af9577df11.
Reason for revert: We said we wouldn't have it in RC1.
Change-Id: Idf0c9a8adeac231f099b312fc24b9cf9726687e0
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Currently Nova produces ambigous error when volume-backed instance
is started using flavor with hw:mem_encryption extra_specs flag:
ImageMeta doesn't contain name if it represents Cinder volume.
This fix sligtly changes steps to get image_meta.name for
some MemEncryption-related checks where it could make any
difference.
Closes-bug: #2006952
Change-Id: Ia69e7cb18cd862f01ecfdbdc358c87af1ab8fbf6
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The nova.utils.spawn and spawn_n methods transport
the context (and profiling information) to the
newly created threads. But the same isn't done
when submitting work to thread-pools in the
ComputeManager.
The code doing that for spawn and spawn_n
is extracted to a new function
and called to submit the work to the thread-pools.
Closes-Bug: #1962574
Change-Id: I9085deaa8cf0b167d87db68e4afc4a463c00569c
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By this patch, we now automatically power down or up cores
when an instance is either stopped or started.
Also, by default, we now powersave or offline dedicated cores when
starting the compute service.
Implements: blueprint libvirt-cpu-state-mgmt
Change-Id: Id645fd1ba909683af903f3b8f11c7f06db3401cb
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Before going further, we need to somehow return the list of CPUs even offline
if they are power managed by Nova.
Co-Authored-By: Sean Mooney <smooney@redhat.com>
Partially-Implements: blueprint libvirt-cpu-state-mgmt
Change-Id: I5dca10acde0eff554ed139587aefaf2f5fad2ca5
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This patch adds the following SPICE-related options to the 'spice'
configuration group of a Nova configuration:
- image_compression
- jpeg_compression
- zlib_compression
- playback_compression
- streaming_mode
These configuration options can be used to enable and set the SPICE
compression settings for libvirt (QEMU/KVM) provisioned instances.
Each configuration option is optional and can be set explictly to
configure the associated SPICE compression setting for libvirt. If all
configuration options are not set, then none of the SPICE compression
settings will be configured for libvirt, which corresponds to the
behavior before this change. In this case, the built-in defaults from
the libvirt backend (e.g. QEMU) are used.
Note that those options are only taken into account if SPICE support is
enabled (and the VNC support is disabled).
Implements: blueprint nova-support-spice-compression-algorithm
Change-Id: Ia7efeb1b1a04504721e1a5bdd1b5fa7a87cdb810
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This is the first stage of the power management series.
In order to be able to switch the CPU state or change the
governor, we need a framework to access sysfs.
As some bits can be reused, let's create a nova.filesystem helper module
that will define read-write mechanisms for accessing sysfs-specific commands.
Partially-Implements: blueprint libvirt-cpu-state-mgmt
Change-Id: Icb913ed9be8d508de35e755a9c650ba25e45aca2
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We see functional test failures due to leaked libvirt event handling
thread weaking up after its original test finished and importing
libvirt. If it happens when the libvirt package import is poisoned then
the currently executing test will fail. This patch logs the name of the
test case that leaked the libvirt event handling thread.
We will revert his before RC1.
Change-Id: I3146e9afb411056d004fc118ccfa31126a3c6b15
Related-Bug: #1946339
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This adds a number of functional test cases for the stable-compute-uuid
error cases. Specifically around checks and aborted startups to make
sure we're catching what we expect, and failing in the appropriate
ways.
Related to blueprint stable-compute-uuid
Change-Id: I8bcb93a6887ed06dbd4b7c28c93a20a3705a6077
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We do run update_available_resource() synchronously during service
startup, but we only allow certain exceptions to abort startup. This
makes us abort for InvalidConfiguration, and makes the resource
tracker raise that for the case where the compute node create failed
due to a duplicate entry.
This also modifies the object to raise a nova-specific error for that
condition to avoid the compute node needing to import oslo_db stuff
just to be able to catch it.
Change-Id: I5de98e6fe52e45996bc2e1014fa8a09a2de53682
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If we are starting up for the first time, we expect to generate and
write a node_uuid file if one does not exist. If we are upgrading,
we expect to do the same. However, if we are starting up not after an
upgrade and not for the first time, a missing compute_id file is an
error, and we should abort.
Because of the additional check that this adds, which is called from
a variety of places that don't have the stable compute node singleton
stubbed to make it happy, this mocks the check for any test that does
not specifically aim to exercise it.
Related to blueprint stable-compute-uuid
Change-Id: If83ce14b96e7d84ae38eba9d798754557d5abdfd
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When we are loading our ComputeNode objects by UUID according to what
the virt driver reported, we can sanity check the DB records against
the virt driver's hostname. This covers the case where our CONF.host
has not changed but the hostname reported by the virt driver has,
assuming we can find the ComputeNode object(s) that match our
persistent node uuid.
Related to blueprint stable-compute-uuid
Change-Id: I41635210d7d6f46b437b06d2570a26a80ed8676a
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Start to v2.95 any evacuated instances will be stopped a destination
Implements: bp/allowing-target-state-for-evacuate
Signed-off-by: Sahid Orentino Ferdjaoui <sahid.ferdjaoui@industrialdiscipline.com>
Change-Id: I141b6f057cc4eb9c541c2bc6eddae27270ede08d
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Related to the bp/allowing-target-state-for-evacuate. This change
is extending compute API to accept a new argument targetState.
The targetState argument when set will force state of an evacuated
instance to the destination host.
Signed-off-by: Sahid Orentino Ferdjaoui <sahid.ferdjaoui@industrialdiscipline.com>
Change-Id: I9660d42937ad62d647afc6be965f166cc5631392
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Except on ironic, if we are able to determine that our locally-
configured node has a hostname other than what we expect, we should
abort startup. Since we currently depend on the loose name-based
association of nodes, services, and instances, we need to make sure
we do not startup in an inconsistent configuration.
Related to blueprint stable-compute-uuid
Change-Id: I595b27a57516cffe1f172cf2fb736e1b11373a1d
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In some cases on Arista VXLAN fabrics, VMs are inaccessible via network
after live migration, despite garps being observed on the fabric itself.
This patch builds on the feature
``[workarounds]/enable_qemu_monitor_announce_self`` feature as reported
in `bug 1815989 <https://bugs.launchpad.net/nova/+bug/1815989>`
This patch adds the ability to config the number of times the QEMU
announce_self monitor command is called, and add a new configuration option to
specify a delay between calling the announce_self command multiple times,
as in some cases, multiple announce_self monitor commands are required for
the fabric to honor the garp packets and the VM to become accessible via
the network after live migration.
Closes-Bug: #1996995
Change-Id: I2f5bf7c9de621bb1dc7fae5b3374629a4fcc1f46
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Minor cleanups from feedback on earlier patches.
Related to blueprint stable-compute-uuid
Change-Id: I00505f1df47b46ed36645c781354258e255f0dcc
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This makes the resource tracker look up and create ComputeNode objects
by uuid instead of nodename. For drivers like ironic that already
provide 'uuid' in the resources dict, we can use that. For those
that do not, we force the uuid to be the locally-persisted node
uuid, and use that to find/create the ComputeNode object.
A (happy) side-effect of this is that if we find a deleted compute
node object that matches that of our hypervisor, we undelete it
instead of re-creating one with a new uuid, which may clash with our
old one. This means we remove some of the special-casing of ironic
rebalance, although the tests for that still largely stay the same.
Change-Id: I6a582a38c302fd1554a49abc38cfeda7c324d911
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If we start up from an older service version, we need to look at the
database to determine what our node is and write it locally. This
leap of faith will be the last time we need to look up our node based
on our hostname. Instead of relying on this, operators can (ideally)
pre-populate the compute node identities for maximum safety.
Change-Id: I178700bf5ba172603593b1c9972520d05face849
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As of now, when attempting to rescue a volume-based instance
using an image without the hw_rescue_device and/or hw_rescue_bus
properties set, the rescue api call fails (as non-stable rescue
for volume-based instances are not supported) leaving the instance
in error state.
This change checks for hw_rescue_device/hw_rescue_bus image
properties before attempting to rescue and if the property
is not set, then fail with proper error message, without changing
instance state.
Related-Bug: #1978958
Closes-Bug: #1926601
Change-Id: Id4c8c5f3b32985ac7d3d7c833b82e0876f7367c1
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This adds a get_available_node_uuids() method to the virt driver
interface. This aims to eventually replace the nodename-based
interface, but currently provides an implementation that will work
for most drivers. Any driver that does not override this method
will get the locally-persistent UUID from nova.virt.node.
Ironic obviously needs to override this (which is easy), as well as
the fake driver because it supports multiple nodes for testing. The
libvirt driver overrides it only because we test multiple libvirt
driver instances on a single host and we need each instantiation
of it to "capture" the UUID we have mocked out at the time it is
started.
Change-Id: Ibe14d2b223c737d82c217a74bc94e41603271a9d
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This just adds the service ref to init_host() so that we can pass it
(if it exists) at startup. On the first run, this will be None, so
we know that we don't have an existing service record and thus do not
need to do any migration.
Related to blueprint stable-compute-uuid
Change-Id: I1491c9b234ef0c262b5ed01d4c138eba8dedff77
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Related to blueprint stable-compute-uuid
Change-Id: Ie8897a843fadf325c696b411923f075e237a7342
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The older libvirt API compareCPU() does not take into account the
capabilities of the "host hypervisor" (KVM, QEMU and the details libvirt
knows about the host) when comparing CPUs. This is causing unwanted
failures during CPU compatibility checks. To fix this and other related
problems, libvirt has introduced (in v4.4.0) a newer API,
compareHypervisorCPU(), which _does_ take into account the host
hypervisor's capabilities before comparing CPUs. This will help fix a
range of problems, such as[1][2].
So let's switch to the newer API, which is largely a drop-in
replacement.
In this patch:
- Introduce a wrapper method, compare_hypervisor_cpu() for libvirt's
compareHypervisorCPU() API.
- Update the _compare_cpu() method to use the wrapper method,
compare_hypervisor_cpu().
- Update the unit tests to use the newer API, compareHypervisorCPU().
[1] https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1978064
[2] https://bugzilla.redhat.com/show_bug.cgi?id=2138381
Change-Id: Ib523753f52993cfe72e35e0309e429ca879c125c
Signed-off-by: Kashyap Chamarthy <kchamart@redhat.com>
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In this patch:
- Remove the first compareCPU() call (called via the wrapper
_compare_cpu()) in _check_cpu_compatibility(), and let libvirt
handle it. (QEMU >=2.9 and libvirt >= 4.4.0 are the mininum
required versions, and upstream Nova satisfies them by a good
margin.)
- Validate the user-configured CPU models from
_get_cpu_model_mapping(). And take into account all the CPU flags
before calling _compare_cpu().
(Suggested-by: Sean Mooney -- thanks!)
- Add a workaround to allow skipping the remaining compareCPU() call
in _check_cpu_compatibility() as a potential future-proof (because
we cannot test all possible CPU models and hardware). Unlike the
removed first call, this call takes into account the extra CPU flags
provided by the user into account when evaluating guest CPU model
compatibility.
As a follow up comes the patch[1] that replaces the older libvirt CPU
API with the newer one.
[1] https://review.opendev.org/c/openstack/nova/+/869950 -- libvirt:
Replace usage of compareCPU() with compareHypervisorCPU()
Change-Id: I8ef9db851b37c5249d2efbe09a15a1ddbae8205d
Signed-off-by: Kashyap Chamarthy <kchamart@redhat.com>
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