摘要:
According to one aspect of the present disclosure, a method and technique for hierarchical network failure handling in a clustered node environment is disclosed. The method includes: detecting a network failure by a node in a cluster, the cluster having plural nodes arranged in a hierarchy, wherein the network failure is associated with a subordinate node in the hierarchy to the detecting node; communicating the network failure from the detecting node to a superior node in the hierarchy; determining whether the network failure affects nodes higher than the detecting node in the hierarchy; and responsive to determining that the network failure does not affect nodes higher than the detecting node in the hierarchy, the detecting node initiating a protocol to expel the subordinate node from the cluster.
摘要:
According to one aspect of the present disclosure, a method and technique for hierarchical network failure handling in a clustered node environment is disclosed. The method includes: detecting a network failure by a node in a cluster, the cluster having plural nodes arranged in a hierarchy, wherein the network failure is associated with a subordinate node in the hierarchy to the detecting node; communicating the network failure from the detecting node to a superior node in the hierarchy; determining whether the network failure affects nodes higher than the detecting node in the hierarchy; and responsive to determining that the network failure does not affect nodes higher than the detecting node in the hierarchy, the detecting node initiating a protocol to expel the subordinate node from the cluster.
摘要:
A computer implemented method, apparatus, and computer usable program code for preserving a virtual file system. Data for a virtual file system is received. The data include file handle information, vnode information, and gnode information. The data is saved to a storage device. The saved data can be used to reconstruct the virtual file system upon changeover between a primary data processing system and a backup data processing system.
摘要:
A method, system, and computer-usable medium for implementing a file directory in a server. An application including a buffer for retrieving and storing at least one entry is interfaced with the file directory. Utilizing a determined average filename length, an estimate of a number of entries among the collection of entries that can be stored by the buffer is determined. In response to determining at least one attribute data field has been requested, the number of entries that can be stored by the buffer is recalculated. Recalculating the number of entries includes determining an amount of data required for storing the collection of filenames, a collection of fixed-length attribute data fields, and a collection of variable-length attribute data fields. The recalculated number of entries is then requested from the file directory, and the buffer is loaded, with the recalculated number of entries.
摘要:
A random access audio/video processor having multiple outputs is disclosed. The random access audio/video processor includes a main control unit having an analog video back panel, an analog audio back panel, an analog input/output (I/O) board. An audio processing board, a video processing board, a video effects board, a syncronization board, and a system board (containing the main CPU). The video processing board includes a compressor for compressing input video signals, and a triple transfer buffer, for intermediate storage of digital video path. The video processing board further includes decompression circuits coupled to each of two triple transfer buffers for decompressing compressed stored video, and providing the decompressed video channels to an effects board for the addition of special effects. The audio processing board contains four digital signal processors for audio compression, decompression, and effects processor. It also contains triple transfer buffers for intermediate storage of digital audio data. The system board contains the main CPU, DMA controllers and SCSI interfaces required to perform high speed audio-video data transfers to/from disk. The triple transfer buffers of the present invention include a present buffer, a past buffer and a future buffer, the purpose of which is to ensure that there is sufficient video and audio material in the present buffers to minimize any discontinuities in either the audio or the video channel outputs. The invention provides an E to C mode to allow the user to view video which has been compressed and decompressed to verify that no unwanted system artifacts exist or are being created by the compression process. The viewing of the compressed and decompressed material is done in real-time while the material is being compressed and stored. Under software control, a user may bypass the compression circuit and capture uncompressed still frames directly in the triple transfer buffer, and store the uncompressed still frames, thereby permitting the independent display of still and motion video in each respective output channel.
摘要:
A random access audio/video processor having multiple outputs is disclosed. The processor includes a main control unit with analog video and audio back panels, an analog input/output board, audio and video processing boards, video effects board, synchronization board, and a system board (containing the main CPU). The video processing board includes a compressor for compressing input video signals, and triple transfer buffers for intermediate storage of digital video path. The video processing board further includes decompression circuits coupled to each of two triple transfer buffers for decompressing compressed stored video, and providing the decompressed video channels to an effects board for the addition of special effects. The audio processing board contains processors for compression, decompression, and effects, as well as triple transfer buffers. The triple transfer buffers include present, past, and future buffers which jointly operate to minimize discontinuities in the output channels. The invention provides an E to C mode to allow the user to preview video which has been compressed and decompressed to verify that no unwanted system artifacts exist, or are created by the compression process. This previewing is done in real-time while the material is being compressed and stored. A user may also bypass the compression circuit and capture uncompressed still frames directly in the triple transfer buffer, and store the uncompressed still frames, thereby permitting the independent display of still and motion video in each output channel.
摘要:
Automotive vehicle has a parking brake which is lockable in the brake-on position. In addition, the parking brake interacts with the service brake system of the vehicle to lock the service brake when the parking brake is locked.
摘要:
First and second stop bodies are arranged to clamp around the lever of a pedal which operates an apparatus. When the stop bodies are locked in place, the pedal cannot be operated and, thus, the apparatus is restrained.
摘要:
In accordance with a preferred embodiment of this invention, a decorative and protective coating is electrodeposited on a negatively charged metallic substrate from an acidic aqueous dispersion. The dispersed particles contain a film forming addition polymer, copolymer or mixtures thereof. This addition polymerization reaction product has occasional but randomly distributed pendent aminimide and pendent hydroxyl functionalities. The hydroxyl and the aminimide functionalities are present in about equal amounts. Once deposited, the coating is cured at a temperature of about 120.degree. C. or above.
摘要:
Systems that maintain objects created and modified within designated directories on a per-client basis in a network filesystem include a file server having a local processor, memory operably connected to the local processor, a filesystem including main directories loaded into the memory, and a list of operations loaded into the memory; at least one client operably connected to the server having a remote processor and memory operably connected to the remote processor; wherein the file server has designated at least one of the main directories as a per-client writable directory; and wherein the file server has exported the filesystem read-only to at least one client.