摘要:
A processor includes a plurality of processing sections, each of which executes a predetermined process. A plurality of fault detecting circuits are respectively provided for the plurality of processing sections, to detect a fault in one of the plurality of processing sections as a fault processing section to generate a fault detection signal. A fault monitoring and control section controls a normal processing section as at least one of the plurality of processing sections other than the fault processing section to execute a relieving process in response to the fault detection signal. The relieving process is determined based on a process load of the fault processing section, a process load of the normal processing section, and priority levels of processes to be executed by the fault processing section and the normal processing section.
摘要:
The present application is directed to systems and methods for providing failover connection mirroring between two or more multi-core devices intermediary between a client and a server. A first multi-core device may receive a hash key of a second multi-core device for mapping packets to cores of the second multi-core device. The first device may identify a core of the second device using (i) the hash key of the second device and (ii) tuple information corresponding to a connection between the client and the server via the first device. The first device may determine that the identified core is not a desired core for providing a failover connection. The first device may modify the tuple information so as to identify the desired core when used with the hash key of the second device. The first device may use the modified tuple information to establish the failover connection.
摘要:
A system, method, and computer readable medium for asynchronous live migration of applications between two or more servers. The computer readable medium includes computer-executable instructions for execution by a processing system. Primary applications runs on primary hosts and one or more replicated instances of each primary application run on one or more backup hosts. Asynchronous live migration is provided through a combination of process replication, logging, barrier synchronization, checkpointing, reliable messaging and message playback. The live migration is transparent to the application and requires no modification to the application, operating system, networking stack or libraries.
摘要:
A packet processor provides for rule matching of packets in a network architecture. The packet processor includes a lookup cluster complex having a number of lookup engines and respective on-chip memory units. The on-chip memory stores rules for matching against packet data. Each of the lookup engines receives a key request associated with a packet and determines a subset of the rules to match against the packet data. As a result of the rule matching, the lookup engine returns a response message indicating whether a match is found.
摘要:
Methods and systems for quickly serving documents are provided. Documents may be served to users, for example, in response to search query inputs. Documents may be individually communicated to a document server individually prior to batching the documents. In such a real-time serving system, serving components may fail. To ensure real-time serving despite the failure, spares are utilized to replace the failing serving components such that the spare can immediately begin receiving documents. The spare can also be synchronized with other serving components to obtain the memory of the failing serving component prior to the failure.
摘要:
A computer-implemented method for disaster recovery of multi-tier applications may include 1) identifying a multi-tier application that is provisioned with a plurality of production clusters at a production site, 2) identifying a disaster recovery site including a plurality of recovery clusters, 3) identifying, at the disaster recovery site, a failure of the multi-tier application at the production site, and 4) initiating, from the disaster recovery site, a migration of the multi-tier application from the production site to the disaster recovery site. Various other methods, systems, and computer-readable media are also disclosed.
摘要:
Provided is a cluster system including a first physical server having registered therein an active virtual machine; and a plurality of physical servers, wherein the plurality of physical servers comprises a second physical server having registered therein a standby virtual machine corresponding to the active virtual machine, the active virtual machine failing over to the standby virtual machine when a failure occurs in the first physical server, wherein each of the plurality of physical servers stores post-failure registration information when the failure occurs, wherein the post-failure registration information associates the active virtual machine with a physical server among the plurality of physical servers, and wherein the physical server is different from the second physical server.
摘要:
A disaster recovery appliance is described herein. The disaster recovery appliance is coupled to one or more servers. The disaster recovery appliance continuously receives backup data for each of the one or more servers. When a server fails, the disaster recovery appliance, replaces the failed server. While the failed server is inaccessible, the disaster recovery appliance is able to mimic the functionality of the failed server. In some embodiments, the disaster recovery appliance is able to act as a server in addition to a backup device for the other servers.
摘要:
Systems and methods for automatic failover in modular chassis systems. In some embodiments, a modular chassis includes a chassis management controller and a plurality of server blades. A first of the plurality of server blades may be configured to detect an internal fault to and to transmit a corresponding alert message to the chassis management controller via a midplane connection. Moreover, the chassis management controller may be configured to initiate a migration procedure to transfer one or more workloads from the first server blade to a second of the plurality of server blades.
摘要:
According to an example embodiment, a processor is provided including an integrated on-chip memory device component. The on-chip memory device component includes a plurality of memory banks, and multiple logical ports, each logical port coupled to one or more of the plurality of memory banks, enabling access to multiple memory banks, among the plurality of memory banks, per clock cycle, each memory bank accessible by a single logical port per clock cycle and each logical port accessing a single memory bank per clock cycle.