Patent classifications
H04L67/1095
STREAMING AND SEQUENTIAL DATA REPLICATION
Systems and methods of capturing application data locally on a source data management system and performing a high performance, bandwidth optimized replication the data from the source data management system to a remote data management system either (a) in parallel with copying data from an application to the source data management system, or (b) serially by replicating the data to the remote data management system after the data is copied to the source data management system, wherein the determination to operate in parallel or serially is based on at least one of a characteristic of the data and user specified tuning parameters.
TECHNIQUES FOR WARMING UP A NODE IN A DISTRIBUTED DATA STORE
In various embodiments, a node manager configures a “new” node as a replacement for an “unavailable” node that was previously included in a distributed data store. First, the node manager identifies a source node that stores client data that was also stored in the unavailable node. Subsequently, the node manager configures the new node to operate as a slave of the source node and streams the client data from the source node to the new node. Finally, the node manager configures the new node to operate as one of multiple masters nodes in the distributed data store. Advantageously, by configuring the node to implement a hybrid of a master-slave replication scheme and a master-master replication scheme, the node manager enables the distributed data store to process client requests without interruption while automatically restoring the previous level of redundancy provided by the distributed data store.
Distributing and synchronizing objects
The described embodiments distribute and synchronize objects in a network. More specifically, the described embodiments distribute copies of objects locally (i.e., store copies of objects in local address spaces). By storing a copy of a given object in a local address space, the object's methods may be executed locally, which can help to avoid excessive network traffic associated with remotely executing the object's methods. However, executing an object's methods locally can result in the state of the object (i.e., data associated with the object, etc.) becoming out of sync with other copies of the object in the network. To avoid issues associated with unsynchronized copies of the object in the network, the described embodiments use a policy that specifies conditions under which objects are to be synchronized.
User-input scheduling of synchronization operation on a mobile device based on user activity
Data is synchronized between a mobile device and a computing device over a wireless link. Synchronization operations are scheduled according to a synchronization schedule that is based on a current time of day. In one embodiment, the day can be divided into different time periods by the user. The user can also specify the frequency with which synchronization operations are to be performed during each specified period.
System and method for handling digital content delivery to portable devices
Systems and methods to download digital data files are provided. A particular method includes sending authentication data and a request to download a digital data file from a portable computing device to a remote network device via a first network access point. A first portion of the digital data file is received at the portable computing device. The first portion does not include a remaining portion of the digital data file. Communication is established between the portable computing device and a second network access point after communication is lost between the portable computing device and the first network access point and before the remaining portion of the digital data file is received. The remaining portion of the digital data file is received at the portable computing device without sending a second request related to downloading the digital data file.
Avoiding redundant transmissions of data during multimedia mobile phone communications
A method, apparatus, and computer product for avoiding redundant data transmissions during communication via multimedia mobile phones. In operation, a sending party inquires whether intended for transmission data already resides in a mobile phone of a receiving party Depending on a content of the response from the receiving party, the sending party transmits the data or a request for displaying the already available data.
Write access to a variable in a server
A method for optimizing repeated write access by a client to at least one variable in a server via OPC UA, wherein a call method for repeated write access is provided on the server, the call method includes notification of an access time interval and at least one variable for the repeated write access, the client calls the call method on the server, the server is notified of an access time interval and the at least one variable for the repeated write access in the process, where the server creates a data structure for the repeated write access and maintains said data structure during the access time interval, values of the at least one variable which are to be written are transmitted to the server by the client during the access time interval, and the server allocates each value transmitted by the client to the associated variable.
RESTlike API that supports a resilient and scalable distributed application
An application distributed amongst plurality of computing devices leverages an application programming interface that conforms to a representational state transfer architecture in order to provide resilient services to clients and adapt to a change in availability of devices. A proxy server routes communications between clients and servers, detects when a server becomes unavailable, and reroutes communications to a replacement server. A registration database on the proxy server records entries for clients, such that communications can be routed to active devices of a user.
Synchronizing configuration of partner objects across distributed storage systems using transformations
A configuration for a component of a primary node is synchronized with a configuration for a component of a partner node in a different cluster by replicating the primary node configuration with the partner node. A baseline configuration replication comprises a snapshot of a component configuration on the primary. The baseline configuration can be generated by traversing through the configuration objects, capturing their attributes and encapsulating them in a package. The baseline package can then be transferred to the partner node. The configuration objects can be applied on the partner node in the order in which they were captured on the primary node. Attributes of the configuration objects are identified that are to be transformed. Values for the identified attributes are transformed from a name space in the primary node to a name space in the partner node.
Semi-automatic failover
Semi-automatic failover includes automatic failover by a service provider as well as self-serviced failover by a service consumer. A signal can be afforded by a service provider based on analysis of an incident that affects the service provider. Initiation of self-serviced failover by a service consumer can be predicated on the signal. In one instance, the signal provides information that aids a decision of whether or not to failover. In another instance, the signal can grant or deny permission to perform a self-serviced failover.