摘要:
A method and apparatus for realizing application high availability. The application is installed on both a first node and a second node, the first node being used as an active node, and the second node being used as a passive node. The method includes: monitoring access operations to files by an application during its execution on the active node; replicating the monitored updates to the file by the application from the active node to a storage device accessible to the passive node if the application performs updates to a file during the access operations; sniffing the execution of the application on the active node; and switching the active node to the second node and initiating the application on the second node in response to sniffing a failure in the execution of the application on the active node.
摘要:
A method and apparatus for realizing application high availability. The application is installed on both a first node and a second node, the first node being used as an active node, and the second node being used as a passive node. The method includes: monitoring access operations to files by an application during its execution on the active node; replicating the monitored updates to the file by the application from the active node to a storage device accessible to the passive node if the application performs updates to a file during the access operations; sniffing the execution of the application on the active node; and switching the active node to the second node and initiating the application on the second node in response to sniffing a failure in the execution of the application on the active node.
摘要:
A method, apparatus, and computer program product for realizing application high availability are provided. The application is installed on both a first node and a second node, the first node being used as an active node, and the second node being used as a passive node. The method includes: monitoring access operations to files by an application during its execution on the active node; replicating the monitored updates to the file by the application from the active node to a storage device accessible to the passive node if the application performs updates to a file during the access operations; sniffing the execution of the application on the active node; and switching the active node to the second node and initiating the application on the second node in response to sniffing a failure in the execution of the application on the active node.
摘要:
A method, apparatus, and computer program product for realizing application high availability are provided. The application is installed on both a first node and a second node, the first node being used as an active node, and the second node being used as a passive node. The method includes: monitoring access operations to files by an application during its execution on the active node; replicating the monitored updates to the file by the application from the active node to a storage device accessible to the passive node if the application performs updates to a file during the access operations; sniffing the execution of the application on the active node; and switching the active node to the second node and initiating the application on the second node in response to sniffing a failure in the execution of the application on the active node.
摘要:
A computer-implemented methods and systems for a running virtual machine image in a host machine. One method includes: receiving a virtual machine image provisioning request; sending to a storage server a request to copy a virtual machine image related to the virtual machine image provisioning request; receiving a portion of the virtual machine image; starting a virtual machine in the host machine by running the received portion of the virtual machine image; intercepting a file operation request of a program running in the virtual machine; and acquiring a file related to the file operation request.
摘要:
A method for dynamically adjusting resources among a plurality of co-existing applications comprises the steps of: building a relation model between a request number and resource consumption of said plurality of applications; obtaining at multiple sampling moments a request number and resource consumption of each of said plurality of applications; calculating resource consumption ratio of each of said plurality of applications; and analyzing resource consumption of a plurality of currently co-existing applications.
摘要:
The present invention provides a method for managing a database connection, comprising the steps of: in responsive to a connection request of a first application, allocating an available connection for the first application; if there is no available connection, selecting a held connection being used by a second application; backing up connection context of the held connection; releasing the held connection; and allocating the held connection for the first application. Since connection context of the application has been restorably backed up, a connection of the application can be cut off and the connection re-scheduled when necessary. As a result, the connection utilization rate is enhanced. The present invention further provides a device and system that can manage a database connection based on the technology of connection pools. (FIG. 5)
摘要:
A method and navigation helper for generating constraint language codes for navigation in a constraint language editor. The constraint language editor generates model/instance-related constraint expressions according to the loaded model/instance and related constraints. The navigation is a path implementing the constraints. The method includes parsing the loaded model/instance; calculating a possible association related to the element through the type of the navigation-related element in the model/instance; and calculating a possible navigation path according to the association. A method for generating constraint language codes in a constraint language editor and the constraint language editor includes loading the model/instance; loading constraint patterns for storing parameters and a constraint code template; invoking corresponding helpers, according to the types of parameters stored in the constraint patterns; and generating constraint codes according to the generated parameters and the constraint code template.
摘要:
A system and method for facilitating installing software includes steps and means for identifying whether the phase of a software installing process changes and, responsive to the identifying a change in the phase of the software installing process, executing an additional task of the current phase of the software installing process.
摘要:
A method and navigation helper for generating constraint language codes for navigation in a constraint language editor. The constraint language editor generates model/instance-related constraint expressions according to the loaded model/instance and related constraints. The navigation is a path implementing the constraints. The method includes parsing the loaded model/instance; calculating a possible association related to the element through the type of the navigation-related element in the model/instance; and calculating a possible navigation path according to the association. A method for generating constraint language codes in a constraint language editor and the constraint language editor includes loading the model/instance; loading constraint patterns for storing parameters and a constraint code template; invoking corresponding helpers, according to the types of parameters stored in the constraint patterns; and generating constraint codes according to the generated parameters and the constraint code template.