Abstract: A method of eliminating false positives when testing a device management platform for controlling endpoints. The method includes sending, by a computing device, a request to a cloud controller to create an entity. The request causes operations including i) creating, by an endpoint responsive to a receipt of an interface request from the cloud controller, the entity, ii) receiving, by the cloud controller from the endpoint, response data generated by the entity, the response data indicating the creation of the entity, and iii) generating, by the cloud controller, control data based on the response data. The method includes receiving the control data from the cloud controller; sending, responsive to the receipt of the control data, a call to the endpoint for entity data; receiving entity data from the endpoint; comparing, the response data to the entity data to validate the response data; and generating a test status.

Abstract: A system and method can include requesting, by a network agent in a virtual machine in a hypervisor-attached infrastructure, a first identifier of a first resource device. The method can include comparing the first identifier to a plurality of known identifiers. The method can include determining a first location of the first resource device in response to matching the first identifier to one of the plurality of known identifiers. The method can include requesting a second identifier of a second resource device. The method can include determining a second location of the second resource device in response to the second identifier being different from each of the plurality of known identifiers. The second location can be different than the first location.

Abstract: Dynamic erasure coding for computing and data storage systems. A method embodiment commences upon accessing a set of fault tolerance policy attributes associated with the computing and data storage system. The topology of the system is analyzed to form mappings between the computing nodes of the system and the availability domains of the system. Based on the fault tolerance policy attributes, the topology, and the generated mapping, a plurality of feasible erasure coding configurations are generated. The feasible erasure coding configurations are scored. One or more high-scoring feasible erasure coding configurations are selected and deployed to the computing and data storage system. The method is repeated when there is a change in the fault tolerance policy attributes or in the topology. Depending on the topology and/or the nature of a change in the topology, more than one erasure coding configurations can be deployed onto the computing and data storage system.

Abstract: An illustrative embodiment disclosed herein is an apparatus including a processor having programmed instructions to determine that a first packet, received from a first VM on a first host, has a destination address associated with a second VM on the first host, send the first packet to a service-focused bridge, generate a rule to redirect the first packet to the second VM based on the destination address, and generate execute the rule in response to receiving the first packet from the service-focused bridge.

Abstract: Systems for managing a distributed computing system. A method embodiment commences upon receiving user-provided specification parameters that describe a target state of a computing entity. After generating a set of resource management commands to achieve the specified target state of a computing entity, the resource management commands are scheduled for execution. As execution of the resource management commands is being carried out, the execution status of the resource management commands is continuously monitored. If performance of the resource management commands raises an error and/or the resource entity state is different than predicted, a set of remediation actions are determined, and an additional set of processing operations are invoked to accomplish the remediation actions. When all resource management commands and/or any remediation actions have completed successfully, the target resource entity state has been achieved.

Abstract: The system can include a cache and cluster manager. The cache can store a plurality clusters, each of a plurality of clusters including a plurality of cache entries, each of the plurality of cache entries including a plurality of first metadata feature values. The cluster manager can assign a first cache entry corresponding to a data record located in memory to a first cluster based on determining a lowest distance. The lowest distance is determined by operations. The operations can include calculating a plurality of intra cluster feature means. The operations can include receiving a plurality of second metadata feature values of the first cache entry. The operations can include calculating a plurality of distances based on the plurality of intra cluster feature means and the plurality of second metadata feature values. The operations can include determining the first entry having a lowest distance of the plurality of distances.

Abstract: Systems and methods for iterative, high-performance, low-latency data replication. A method embodiment commences upon identifying one or more replica target nodes to receive replicas of working data. Steps of the method then compose at least one replication message. The replication message includes the location or contents of working data as well as a listing of downstream replica target nodes. The replication capacity is measured at the subject node. Based on the measured replication capacity, the subject node sends instructions in the replication message to one or more downstream replica target nodes. Any one or more of the downstream replica target nodes receives the instructions and iterates the steps of measuring its own capacity and determining the instructions, if any, to send to further downstream replica target nodes. Each replica target node replicates the working data. In some cases, the measured replication capacity is enough to perform all replications in parallel.

Abstract: A system and method for dynamically adjusting the amount of memory allocated to a virtual machine includes generating, by a memory resizing system, a current memory usage profile for the virtual machine. The memory resizing system and the virtual machine are part of a virtual computing system and the current memory usage profile is generated by mapping, as a function of time, memory usage information from the virtual machine. The system and method also include computing an upper baseline based upon a peak memory usage in the current memory profile, updating an initial memory allocation of the virtual machine based upon the upper baseline and a predetermined threshold for obtaining an initial revised memory allocation, determining a moving average of memory usage from a historical memory usage profile, and updating the initial revised memory allocation based upon the moving average of memory usage for obtaining a final revised memory allocation.

Abstract: Systems for multi-cluster virtualized computing system management. A method for performing virtual entity replication between source computing clusters and target computing clusters commences upon establishing a virtual entity naming convention that is observed by both the source computing clusters and the target computing clusters. A snapshot from a source cluster is associated with a global snapshot ID before being transmitted to a target computing cluster. At some point in time, the source cluster will initiate acts to replicate a virtual entity to a particular data state that is associated with a particular named snapshot. A second replication protocol then commences. The second replication protocol includes exchanges that serve to determine whether or not the target computing cluster has a copy of a particular named snapshot as named by the global snapshot ID, and if so, to then initiate virtual entity replication at the target computing cluster using the named snapshot.

Abstract: Systems and methods for batching operations in a virtualization environment. A method embodiment operates over a plurality of virtual machines in the virtualization environment. A user interface is used to select two or more virtual machines that are to be subjected to the same batch actions. A method step then generates at least one batch request to be performed over the two or more selected virtual machines. In forming the batch request, the states of the individual virtual machines are analyzed to determine one or more entity-specific operations that apply to the virtual machines and/or to constituent entities of the virtual machines. Once the state-specific and entity-specific operations have been determined, an entity management protocol initiates execution of the one or more entity-specific operations over the individual ones of the two or more selected virtual machines.

Abstract: A system may include a service deployment system configured to receive user indicators, map the user indicators to a plurality of services, determine an order of deployment associated with the plurality of services, and determine deployment locations associated with the plurality of services. The service deployment system may be configured to generate a plurality of actions, responsive to the plurality of services, the order of deployment, and the deployment locations.

Abstract: Systems and methods for demand-based remote direct memory access buffer management. A method embodiment commences upon initially partitioning a memory pool at a computer that is to receive memory contents from a sender. The memory pool is partitioned into memory areas that comprise a plurality of different sized buffers that serve as target buffers for one or more direct memory access data transfer operations from the data sources. An initial first set of buffer apportionments are associated with each one of the one or more data sources and those initial sets are advertised to the corresponding data sources. Over time, based on messages that have been loaded into the receiver's memory, the payload sizes of the messages are observed. Based on the observed the demand for buffers that are used for the message payload, the constituency of the advertised buffers can grow or shrink elastically as compared to previous advertisements.

Abstract: Disclosed is an improved approach to implement testing for distributed computing systems. A switchboard framework is provided that allows tests to be dynamically generated and executed against a system under test.

Abstract: An improved architecture is provided which enables significant convergence of the components of a system to implement virtualization. The infrastructure is VM-aware, and permits scaled out converged storage provisioning to allow storage on a per-VM basis, while identifying I/O coming from each VM. The current approach can scale out from a few nodes to a large number of nodes. In addition, the inventive approach has ground-up integration with all types of storage, including solid-state drives. The architecture of the invention provides high availability against any type of failure, including disk or node failures. In addition, the invention provides high performance by making I/O access local, leveraging solid-state drives and employing a series of patent-pending performance optimizations.

Abstract: Managing power consumption of multiple computing node clusters of a computing rack system is described. An example system may include a plurality of computing node clusters each comprising a respective plurality of computing nodes, and a power management system. The power management system is configured to determine respective power budget rules associated with each of the plurality of computing node clusters based on a maximum power consumption limit, and to provide the respective power budget rules to an associated one of the plurality of computing node clusters. The power management system is further configured to receive respective power consumption data from each of the plurality of computing node clusters and to adjust the respective power budget rules associated with at least one of the plurality of computing node clusters based on the respective power consumption data associated with each of the plurality of computing node clusters.

Abstract: A system and method for reserving resources for a virtual machine to use during failure of an underlying node are disclosed. The system and method include a scheduling module that is configured to reserve resources for the virtual machine on at least one candidate node. To reserve the resources, the scheduling module is configured to identify a list of candidate nodes based upon a qualifier function, rank the candidate nodes based upon a priority function, and determine the candidate nodes that satisfy a high availability threshold. The scheduling module is also configured to select a highest-ranked candidate node that satisfies the high availability threshold and reserve the resources on the highest-ranked candidate node.

Abstract: A method for performing lockless modifications during a rolling upgrade of a column family from an old column family version to a new column family version in a NoSQL database.

Abstract: In particular embodiments, a system for managing a virtualization environment includes host machines, each of the host machines including a hypervisor, user virtual machines (UVMs) and a virtual machine controller. The virtualization environment also includes virtual disks comprising a plurality of storage devices, and being accessible by the virtual machine controllers. The virtual machine controllers conduct I/O transactions with the virtual disks. The system stores an entity-relationship graph representing elements in the virtualization environment. Each of the elements is represented by an entity-type node in the entity-relationship graph, and relationships between the elements are represented by edges between the nodes.

Abstract: A system and method include initiating a live migration of a virtual machine from a first host machine to a second host machine. The system and method include copying an initial copy of data stored in a memory of the first host machine to a memory of the second host machine, determining a set of modified data, determining that transferring the set of modified data exceeds a downtime limit, calculating an increased throttling amount based on a rate of data copying and a rate of data change using from the set of modified data, determining the increased throttling amount does not exceed a throttling limit, applying the increased throttling to the virtual machine executing on the first host machine, and copying the set of modified data while the increased throttling is applied to the virtual machine executing on the first host machine.