In this changeset, I use https://review.openstack.org/#/c/362730/
as an example to make the existing ModelRoot fully graph-based.
Change-Id: I3a1ec8674b885d75221035459233722c18972f67
Implements: blueprint graph-based-cluster-model
As instance migration cost is petty compared to the cost of
compute node release, I update the way to compute the global
efficacy for a server consolidation goal. The new formula is simplest
and it's only based on compute node.
Change-Id: Ibcce31a85af70429f412c96c584a761d681366a2
In the optimize solution stage when launching audit
based vm_workload_consolidation strategy.
The instance map in node should change when migration
action was removed. Otherwise a KeyError exception
will be thrown.
Change-Id: I054b6b12922892a02d155b4ddc001b19890d32c5
Closes-Bug: #1656157
In this changeset, I implemented a Helper class to deal with
Monasca requests.
Change-Id: I14cfab2c45451b8bb2ea5f1f48254b41fa5abae8
Partially-Implements: blueprint monasca-support
add_migration(self, instance_uuid, source_node,
destination_node, model)
param source_node: node object
param destination_node: node object
but in optimize_solution(), The incoming parameters are
source_node_uuid and destination_node_uuid.
This causes an exception:
AttributeError: 'unicode' object has no attribute 'state'
Change-Id: Ia27f219caa007f2b49ff9efc2544d5b4d894fe65
Closes-Bug: #1649441
Specific exception should be thrown when cluster state
is stale. Current usage is to raise this exception if
compute_model.state is True.
Bug was describeid by Jean-Emile DARTOIS.
Change-Id: Iaddb4cc8007c51bb14759c9da829751e834499d0
Closes-Bug: #1621855
This patch adds documentation on requirements for
vm_workload_consolidation strategy.
Change-Id: I304644138b34658b09f7cd8f29eb089757807b61
Closes-bug: #1640820
In this changeset, I added debug logs to dump the cluster data model
copy structure (as XML) before and after the execution of the strategy.
By doing so, we can see the cluster data model structure that is
expected after the execution of the corresponding action plan.
Change-Id: I81c23e148a78d9b176154f7620087a322a5bce28
Due to the recent code refactor in the cluster data model
compute model is failing to 'get_latest_cluster_data_model'
attribute
Change-Id: Iba848db6d03cf1b682c4000ca48cf846b0ffa79b
Closes-Bug: #1614296
In this changeset, I refactored the whole Watcher codebase to
adopt a naming convention about the various elements of the
Compute model so that it reflects the same naming convention
adopted by Nova.
Change-Id: I28adba5e1f27175f025330417b072686134d5f51
Partially-Implements: blueprint cluster-model-objects-wrapper
In this changeset, I merged the metrics_engine package into
the decision_engine one alongside the required changes to make
the tests pass.
Change-Id: Iac1cd266a854212bf4fa8b21c744b076c3b834a8
Partially-Implements: blueprint cluster-model-objects-wrapper
In this changeset, I implemented a background scheduler service
for Watcher and more particularly for the Decision Engine where
I made it create 2 types of job per cluster data model collector
plugin:
- An initial job that is asynchronously executed upon starting the
Decision Engine
- A periodical job that gets triggered every configurable interval
of time
Change-Id: I3f5442f81933a19565217b894bd86c186e339762
Partially-Implements: bluprint cluster-model-objects-wrapper
In this changeset, I made BaseClusterDataModelCollector instances
pluggable. This corresponds to "part 1" of the work items detailed
in the specifications.
Change-Id: Iab1c7e264add9e2cbbbb767e3fd6e99a0c22c691
Partially-Implements: blueprint cluster-model-objects-wrapper
This patch fixes various typos and other nits in the strategies. It
also updates some of the log messages to be a little more operator
friendly.
Change-Id: Ic9268c6d7376dad215a1a40798485b1d836ba7ae
Closes-Bug: #1604248
The VM workload consolidation strategy sends 'down' instead
of 'disabled' to change nova-compute service state. This patch
will correct it. The same applies for enabling nova-compute service.
Change-Id: I257411ef711b215bd9b56d0bf0479c79a9ef61d8
Closes-Bug: #1591901
This patch updates VM workload consolidation strategy adding a new
condition to check whether nova-compute service is disabled before
creating the action.
Change-Id: I1accbc7bbd62684dce14ca3b35c92121e923a73a
Closes-Bug: #1591927
I this changeset, I added the efficacy indicators both at the DB
and at the API level alongside the associated logic.
Partially Implements: blueprint efficacy-indicator
Change-Id: I824553637621da67966103c1b0c01348b09bd836
In this changeset, I broke down the execute() method to sequentially
call 3 methods:
- pre_execute()
- do_execute()
- post_execute()
This changeset also removes the cluster model parameter from the
execute() method to now become a `model` property of a strategy which
is lazy loaded whenever needed.
Partially Implements: blueprint efficacy-indicator
Change-Id: I2f697938db693acfa95b2c2fbecfdc1b733c93fd
In this changeset, I added the possibility for all plugins to define
configuration parameters for themselves.
Partially Implements: blueprint plugins-parameters
Change-Id: I676b2583b3b4841c64c862b2b0c234b4eb5fd0fd
In this changeset, I updated the Watcher documentation to reflect
the changes that are introduced by this blueprint.
Partially Implements: blueprint get-goal-from-strategy
Change-Id: I40be39624097365220bf7d94cbe177bbf5bbe0ed
In this changeset, I changed the Strategy base class to add new
abstract class methods. I also added an abstract strategy class
per Goal type (dummy, server consolidation, thermal optimization).
This changeset also includes an update of the /goals Watcher API
endpoint to now use the new Goal model (DB entries) instead of
reading from the configuration file.
Partially Implements: blueprint get-goal-from-strategy
Change-Id: Iecfed58c72f3f9df4e9d27e50a3a274a1fc0a75f
Unicode type resource state is now handled in the same fashion as resource state specified by general string.
Change-Id: I35ffa09015283b51c935515436735aecbe83a9d6
Closes-Bug: #1565764
This patch adds a new load consolidation strategy based on a heuristic
algorithm which focuses on measured CPU utilization and tries to
minimize hosts which have too much or too little load.
A new goal "vm_workload_consolidation" was added which executes
the strategy "VM_WORKLOAD_CONSOLIDATION".
This work depends on the implemetation of the bug:
https://bugs.launchpad.net/watcher/+bug/1553124
Change-Id: Ide05bddb5c85a3df05b94658ee5bd98f32e554b0
Implements: blueprint basic-cloud-consolidation-integration
