Abstract:
Systems and methods for enhancing the availability of multi-tier applications on cloud computing platforms are disclosed. An example method comprises identifying, using a processor, dependencies among application components in a multi-tier application; generating, using the processor, an application blueprint defining the multi-tier application based on the identified dependencies; generating a remediation policy based on the identified dependencies in the application blueprint, the remediation policy comprising instructions to restore availability of the multi-tier application; detecting unavailability of the multi-tier application; identifying, using the processor, one of the application components as being responsible for the unavailability of the multi-tier application; and restarting, using the processor, the identified one of the application components based on the remediation policy to restore availability of the multi-tier application.
Abstract:
Methods and systems to limit the duration of a service interruption caused by a failed middleware application server are disclosed. One example method and system includes monitoring the operational status of a first virtual machine operating as a primary server and the operational status of a second virtual machine operating as a stand-by server and, based on the monitored operational status of the first and second virtual machines, performing a hot-swap to cause the second virtual machine to operate as the primary server and the first virtual machine to operate as the stand-by server. The first and second virtual machines are implemented on a same host processing system. After the hot-swap, the first virtual machine is restarted. In some examples, the first virtual machine and the second virtual machine are implemented on a same host processing system. Performing the hot-swap can include causing the first virtual machine to be uncoupled from a network and causing the second virtual machine to be coupled to the network. In some examples, the method also includes causing copy of a first file system used by the primary server to be stored as a second file system for use by the stand-by server.
Abstract:
Systems and methods are described for packaging and deploying applications using minimal and maximal component sets. A minimal set of application components that includes at least the necessary components for launching the application is first downloaded to an endpoint device from a central server. The application is launched on the endpoint from the minimal set. If the application requests a missing component that is not available on the endpoint, the missing component is requested and delivered on-demand from a maximal set located on the server, where the maximal set contains all possible application components. The application is suspended during the download of the missing component. After the missing component is downloaded, the application is resumed, having access to the missing component on the endpoint.
Abstract:
A management agent operates transparently in the background on each endpoint computing device that needs to be managed. The agent sets up a sandboxed environment on the endpoint computing device on which it is operating in order to capture applications that have been installed on the endpoint device. The application capture is performed after the applications have been installed on the endpoint device and therefore does not require installing the application on any dedicated staging machine, nor any recording of the pre-installation state. The application capture process involves running the application from an isolated sandboxed environment on the computing device in order to identify all necessary components of the application by monitoring accesses by the application to components located outside of the sandbox. The identified components can then be packaged together and managed as individual application packages.
Abstract:
Systems and methods are described for packaging and deploying applications using minimal and maximal component sets. A minimal set of application components that includes at least the necessary components for launching the application is first downloaded to an endpoint device from a central server. The application is launched on the endpoint from the minimal set. If the application requests a missing component that is not available on the endpoint, the missing component is requested and delivered on-demand from a maximal set located on the server, where the maximal set contains all possible application components. The application is suspended during the download of the missing component. After the missing component is downloaded, the application is resumed, having access to the missing component on the endpoint.
Abstract:
Methods and apparatus to generate a customized application blueprint are disclosed. An example method includes determining a first virtual machine within an application definition, automatically identifying a property for the first virtual machine, and generating an application blueprint based on the identified property of the virtual machine.