摘要:
A computerized method, computer system, and a computer program product for processing an execution request within different computing environments. Execution requests and generated reference information are forwarded to the different computing environments, where the requests are processed using the reference information. Results of the processed execution requests are collected from the different computing environments. The results are compared to find any discrepancy, possibly giving indication of a software or hardware error.
摘要:
A method and computer system are provided for distributing a plurality of data portions from a server system to one or more client systems. The method includes receiving one or more first requests at the server, each first request being submitted by a client system and including a portion identifier, wherein a portion identifier is assigned to each data portion; in response to receiving the first request(s), transmitting a list of chunk identifiers to the requesting client systems, wherein the list of chunk identifiers specifies the data chunks whose meta-data includes the portion identifier contained in the first request; and transmitting some or all data chunks of a data chunk library to each of the requesting client systems. At the requesting client system, the client specifically selects the data chunks of the transmitted data chunks which are specified by the received list of chunk identifiers.
摘要:
Aspects of the invention provide a solution for determining a storage location for a data item from among a set of persistent storage locations having varying access speeds. Each data item is associated with a score that is based on the frequency with which the data item has been accessed, as well as possible other factors such as open time and/or close time of the data item, the amount of data in the data item, the period from the last time the data item was closed to the next time that the data item is opened and/or the total amount of data in the data item. Data items with high scores relative to other data items are assigned to faster access storage location while data items with lower scores are assigned to slower access storage locations.
摘要:
Operating a node cluster system with a plurality of nodes in a network, wherein the cluster system appears to be a single node with only one specific network address to its network environment. Providing a shared socket database for linking network connection port identifications of a common set of network connection port identifications to the individual nodes, assigning a master function to one of the nodes, sending incoming traffic to all nodes of the cluster system wherein each node verifies its responsibility for this traffic individually, exclusive assignment of a network connection port to the responsible node for the duration of a connection of the corresponding application process by means of the corresponding network connection port identification and the link established by the shared socket database and processing of the traffic by the responsible node or otherwise by the node having the master function.
摘要:
Efficiently determining identical pieces of memory within a computer memory area, which is occupied by a virtual machine manager hosting multiple guests and the computer memory area being logically separated into memory pages of a unique size. Each guest is inspected for its structural characteristics by the virtual machine manager. The structural characteristics of each guest are compared by the virtual machine manager, wherein memory regions of guests having a similar structure are identified; and the identical memory pages are identified by the virtual machine manager by comparing hash values of memory pages located within memory regions of guests having a similar structure, wherein identical memory pages are determined by comparing hash values calculated over the contents of the memory pages.
摘要:
Aspects of the invention provide a solution for determining a storage location for a data item from among a set of persistent storage locations having varying access speeds. Each data item is associated with a score that is based on the frequency with which the data item has been accessed, as well as possible other factors such as open time and/or close time of the data item, the amount of data in the data item, the period from the last time the data item was closed to the next time that the data item is opened and/or the total amount of data in the data item. Data items with high scores relative to other data items are assigned to faster access storage location while data items with lower scores are assigned to slower access storage locations.
摘要:
A system and associated method for shifting workloads across platform in a hybrid system. A first kernel governing a first platform of the hybrid system starts a process that is executable in a second platform of the hybrid system. The first kernel requests a second kernel governing the second platform to create a duplicate process of the process such that the process is executed in the second platform. The process represents the duplicate process in the first platform without consuming clock cycles of the first platform. During an execution of the duplicate process in the second platform, the first kernel services an I/O request of the duplicate process that is transferred from the second kernel to the first kernel. When the duplicate process is terminated, the process in the first platform is removed first before the duplicate process releases resources.
摘要:
A method for enabling file system tagging by an application includes creating tag associations for the file system by associating a tag with a file object. The association includes allocating a file association structure (FAS) in the storage device, which FAS has attributes including a pointer to a file handle of the file object and a list of names of tags associated with the file object. Associating the tag with a file object also includes allocating a tag structure for each tag in the file system. The tag structure includes a tag name and file associations for the tag. In response to a request for a read directory operation, the method includes retrieving the tag associations to identify the file object, dynamically assembling a directory entry structure that includes a hierarchical view of tags identified from the tag associations and corresponding file object, and returning the directory entry structure to the application.
摘要:
An improved PCI Express multiplier device is disclosed. The PCI Express multiplier device comprises two or more device attachers to attach at least two identical PCI Express devices; a root complex attacher to attach a PCI Express root complex; a copier to copy and forward PCI Express data packets from the root complex to all of the attached identical devices; a collector to collect PCI Express data packets sent from the attached identical devices to the root complex; a selector responsive to the collector to select and forward PCI Express data packets from the collected PCI Express data packets to the root complex.
摘要:
The present invention provides a system and method for the execution of jobs in a distributed computing architecture that uses worker clients which are characterized by a checkpointing mechanism component for generating checkpointing information being assigned to at least one worker client, at least one failover system being assigned to the worker client, a component (failover system selection component) for automatically assigning at least one existing or newly created failover system to the failure system being assigned to a worker client in the case said worker clients fails, wherein the assigned failover system provides all function components in order to take over the execution of the job when said assigned worker client fails, wherein the assigned failover system further includes at least a failover monitor component for detecting failover situations of said assigned worker client.