Abstract: A first message from a first state transition queue is obtained by a first task executor of a virtual machine (VM) pooling service node. The operation to be performed on the VM is triggered. Whether the operation to be performed on the VM is successfully performed is determined. If it is determined that the operation to be performed on the VM is successfully performed, a second message is placed into a second state transition queue, and the second message represents the VM that is in a transitional state, the second message is obtained by a second task executor of the VM pooling service node, and whether the VM reaches a target state is determined by performing a check on the VM. Otherwise, the first message is returned to the first state transitional queue.

Abstract: Various embodiments of systems and methods for providing extended file storage for cloud applications are described herein. The method involves receiving a deployment request from a cloud application for file storage service, at the time of deployment. The deployment request includes information identifying a local folder and a mode of storage. The metadata relating to the information in the deployment request is stored in a persistent storage. Further, in response to receiving a start request to run the cloud application an application virtual machine is allocated and a block level storage volume is identified and attached to the application virtual machine. Further, the identified block level storage volume is mapped to the local folder identified in the stored metadata and the application virtual machine running the cloud application is started. The block level storage volume mapped to the local folder is accessed by application processes for performing read/write operations.

Abstract: A first message from a first state transition queue is obtained by a first task executor of a virtual machine (VM) pooling service node. The operation to be performed on the VM is triggered. Whether the operation to be performed on the VM is successfully performed is determined. If it is determined that the operation to be performed on the VM is successfully performed, a second message is placed into a second state transition queue, and the second message represents the VM that is in a transitional state, the second message is obtained by a second task executor of the VM pooling service node, and whether the VM reaches a target state is determined by performing a check on the VM. Otherwise, the first message is returned to the first state transitional queue.

Abstract: Various embodiments of systems and methods for providing extended file storage for cloud applications are described herein. The method involves receiving a deployment request from a cloud application for file storage service, at the time of deployment. The deployment request includes information identifying a local folder and a mode of storage. The metadata relating to the information in the deployment request is stored in a persistent storage. Further, in response to receiving a start request to run the cloud application an application virtual machine is allocated and a block level storage volume is identified and attached to the application virtual machine. Further, the identified block level storage volume is mapped to the local folder identified in the stored metadata and the application virtual machine running the cloud application is started. The block level storage volume mapped to the local folder is accessed by application processes for performing read/write operations.