Vmware, Inc.

Ventsyslav Raikov

Boris Savov

Rostislav Georgiev

Rosen Spasov

George P Dimitrov

Lazarin Lazarov

Ivanka Baneva

Petar Mitrov

Zahari Ivanov

Kristiyan Georgiev

Kiril Angelov Stefanov

Anna Delcheva

Ivan Nushev

Atanas Todorov

Mihail Mihaylov

An example method of executing a periodic task of a service having service instances replicated across hosts in a cluster of a virtualized computing system, the service instances executing in pods implemented by virtual machines (VMs) on the hosts, the method including: persisting, by ping tasks of the service instances, records in a pod information table of a database, the records including pod identifiers of the pods and leader indicators; determining, by a first ping task, a leaderless condition in that the leader indicator in each of the records is false; setting to true, by the first ping task in response to the leaderless condition, the leader indicator in a first record having a first pod identifier for a first pod in which the first ping task executes; and executing the periodic task in the first pod to the exclusion of each other of the pods.

Cluster leader selection via ping tasks of service instances

The disclosure provides an approach for database query management. Embodiments include receiving, by a service operating on a server, a request for data stored in a database. Embodiments also include determining, by the service, whether to handle the request as an internal request or an external request. Embodiments include, in response to determining to handle the request as an internal request: sending, by the service, a query for at least a portion of the data to the database; receiving, by the service, the at least the portion of the data, and storing query metadata of the request in local memory of the server and not in the database, the query metadata comprising parameters of the request.

Context-aware data requests for a service in a distributed environment

Methods and apparatus to scale in and/or scale out arbitrary resources managed by a cloud automation system are disclosed. An example apparatus includes processor circuitry; and a non-transitory computer readable medium comprising instructions which, when executed, cause the processor circuitry to: in response to an indication to scale a first component of an application to be deployed: determine an execution plan to scale the first component based on a dependency graph corresponding to a dependency within a blueprint specifying a logical topology of the application; perform a custom action to scale the first component, the custom action identified in a scaling parameter associated with the application; and update operation of a second component based on scaling the first component, the second component dependent on the first component, the update to enable the second component to interact with the first component after the scaling.

Methods, systems, and apparatus to scale in and/or scale out resources managed by a cloud automation system

Methods, apparatus and articles of manufacture for custom interface specification in a cloud management system are disclosed. An example cloud management system includes: a first interface to communicate with a second interface external to the cloud management system; and a host to manage requests from the second interface and allocate resources to the second interface as a reverse proxy for the second interface with respect to a backend. The example host is to at least: add, at the request of the second interface, an endpoint with respect to the second interface; fetch, at the request of the second interface, data for the endpoint from the backend, the backend identified for the endpoint based on metadata in a component registry; and provide the data from the backend to the second interface.

Methods, systems and apparatus for custom interface specification in a cloud management system

Methods, apparatus and articles of manufacture to provide workflow subscription management in a cloud computing environment are disclosed. Examples disclosed herein cause a graphical user interface associated with a virtual appliance to present a template to create a first workflow subscription, the template including (1) a first input element to specify a workflow to be performed, and (2) a second input element to specify an event topic that is to trigger operation of the workflow, the second input element including a field to specify at least one of (i) whether other workflow subscriptions are to be blocked from an event notification associated with the event topic until the first workflow subscription has acted upon the event notification, or (ii) whether a reply notification is to be sent to a service associated with the event notification after the workflow has completed in response to being triggered based on the event notification.

Methods, systems and apparatus to trigger a workflow in a cloud computing environment

Methods, apparatus and articles of manufacture for dynamically extending a cloud management system by adding endpoint adapter types are disclosed. An example cloud management system includes: an interface to communicate with an external device; a host to manage requests and allocate resources through one or more virtual machines; and an endpoint registry to include an endpoint adapter and metadata defining the endpoint adapter, the endpoint adapter to specify communication between at least one of the host or the external device and an endpoint. In the example cloud management system, the host is to at least enable, via the interface, the external device to access the endpoint registry a) to register an endpoint adapter configuration with the endpoint registry and b) to retrieve the endpoint adapter configuration from the endpoint registry.

Methods, systems and apparatus for dynamically extending a cloud management system by adding endpoint adapter types

Methods, apparatus and articles of manufacture to provide client extensibility during provisioning of a composite blueprint are disclosed. An example virtual appliance in a cloud computing environment includes an orchestrator to facilitate provisioning of a virtual computing resource based on a blueprint, the provisioning associated with an event defined by the blueprint. The example virtual appliance also includes an event broker to maintain a set of subscribers to the event broker, each of the set of subscribers further subscribing to at least one event topic through the event broker, the event broker to trigger a notification of a first subscriber to a first event topic associated with the event when the event broker determines that the first subscriber is a blocking subscriber for the first event topic, the event broker to facilitate modification of the event by a blocking subscriber but not by a non-blocking subscriber.

Methods, systems and apparatus for client extensibility during provisioning of a composite blueprint

Methods and apparatus to customize deployment using approvals are disclosed. An example deployment approval manager can generate a first Approval Payload including an initial application component approval proposal of an application component that provides a logical template of an application. A deployment event broker can reply-back to the deployment approval manager with a second approval payload that includes a processed application component approval proposal.

Apparatus and methods to incorporate external system to approve deployment provisioning

Example virtual appliances disclosed herein include processor circuitry to accept a resource definition of a custom resource to be executed in a cloud computing environment. Disclosed example virtual appliances also include a lifecycle manager to manage a lifecycle of the custom resource based on a state machine. Disclosed example virtual appliances further include a database to: (i) query the lifecycle manager for a set of operations available to execute in a current lifecycle state of the custom resource; (ii) update a catalog item for the custom resource to present the set of operations available to execute in the current lifecycle state of the custom resource, the catalog item created based on the resource definition of the custom resource; and (iii) in response to selection of a first operation in the set of operations, send a message to cause the processor circuitry to execute the first operation.

Lifecycle management of custom resources in a cloud computing environment

Methods and apparatus to customize deployment using metaproperties are disclosed. An example deployment metaproperty manager can generate a first metaproperty payload including an application component metaproperty of an application component that provides a logical template of an application. A deployment event broker can reply-back to the deployment metaproperty manager with a second metaproperty payload that includes a processed application component metaproperty.

Methods and apparatus for limiting data transferred over the network by interpreting part of the data as a metaproperty

Methods, apparatus and articles of manufacture to provide client extensibility during provisioning of virtual computing resources are disclosed. An example event broker apparatus includes a subscription manager to manage subscriptions to event topics associated with provisioning of a virtual computing resource. The example apparatus includes a meta-topic subscriber to identify a subscription request by a service for an event topic and to trigger, in response to the subscription request, a meta-topic subscription to indicate a) a subscriber to the event topic and b) a type of the subscriber, the type to include at least a blocking subscriber. The example apparatus includes a topic monitor to monitor for an event corresponding to the event topic to determine whether to trigger a blocking subscriber workflow when the meta-topic subscription indicates that the type of the subscriber is a blocking subscriber or bypass the blocking subscriber workflow when the type of the subscriber is not a blocking subscriber.

Methods and apparatus for adaptive workflow adjustment during resource provisioning using meta-topics

Methods, apparatus and articles of manufacture to provide workflow subscription management in a cloud computing environment are disclosed. Example methods disclosed herein include causing display of a template corresponding to an event topic that is to trigger a workflow associated with a first workflow subscription, the first workflow subscription included in a plurality of workflow subscriptions having a hierarchy, the template to include a first field to specify whether at least one other workflow subscription associated with the event topic is to be blocked until a hierarchically dominant workflow subscription has at least one of been notified of the event topic or taken action based on the event topic. Disclosed example methods also include triggering the workflow in response to an event notification associated with the event topic.

Methods and apparatus to scale in and/or scale out arbitrary resources managed by a cloud automation system are disclosed. An example apparatus includes an execution plan determiner to determine an execution plan for a scaling operation of an application in a platform environment based on a dependency graph; a component scaler to scale a scalable component in the platform environment corresponding to the application based on the execution plan by executing custom logic associated with the scalable component specified in the execution plan; and a dependent updater to update operation of a dependent component based on the scaling of the scalable component, the dependent component operating in conjunction with the scalable component.

Growing community of inventors

Sofia, Bulgaria

Ventsyslav Raikov