Abstract: Consistent External Table Access maintains transactional consistency for queries that access external tables stored in a DBFS. This ability is achieved by bypassing the OS. One or more database processes executing a query that access an external table stored in a DBFS access the database-file table like other database tables in the DBMS that can be accessed to execute a query. Based on metadata stored in the DBMS regarding how an external table is stored in a DBFS, a DBMS is able to marshal database processes that access database-file tables directly to execute a query.

Abstract: Computer technology for use with a computer data storage system including a plurality of client computers and a plurality of collector nodes. A file consists of data blocks with each block resides on one of the persistent storage device. Data received at client computers are buffered and then transferred to selected collector nodes depending on which data blocks the data belong to. Location-aware collector node selection is performed by selecting collector nodes, from the plurality of collector nodes, by querying a file system allocation subsystem to determine selected collector nodes for the given data block that owns a persistent storage device on which the given block is allocated. Data for each data block is then sent to and stored in its selected collector nodes.

Abstract: Various embodiments enable versioning of data stored on a memory device, where the versioning allows the memory device to maintain different versions of data within a set of physical memory locations (e.g., a row) of the memory device. In particular, some embodiments provide for a memory device or a memory sub-system that uses versioning of stored data to facilitate a rollback operation/behavior, a checkpoint operation/behavior, or both. Additionally, some embodiments provide for a transactional memory device or a transactional memory sub-system that uses versioning of stored data to enable rollback of a memory transaction, commitment of a memory transaction, or handling of a read or write command associated with respect to a memory transaction.

Abstract: A computer comprising processors and memory may implement an application execution engine to execute an application including both managed code and unmanaged code, the managed code providing memory safety for accesses to objects in memory and the unmanaged code providing no such safety. Responsive to a request from managed code, the application execution engine allocates memory for an object in a managed pool and the object is accessible to managed code in a managed state. Responsive to a requirement for unmanaged code to access the managed object, the application execution engine transforms the object to be accessible in an unmanaged state, the transformation including allocating memory for the object in an unmanaged pool, copying data from managed memory to unmanaged memory according to a predetermined unmanaged layout, releasing the managed memory and using an address of the unmanaged memory to access the object in the unmanaged state.

Abstract: The present disclosure relates to systems, methods, and non-transitory computer readable storage media for implementing a scalable, secure, efficient, and adaptable distributed digital ledger transaction network. Indeed, the disclosed systems can reduce storage and processing requirements, improve security of implementing computing devices and underlying digital assets, accommodate a wide variety of different digital programs (or “smart contracts”), and scale to accommodate billions of users and associated digital transactions. For example, the disclosed systems can utilize a host of features that improve storage, account/address management, digital transaction execution, consensus, and synchronization processes. The disclosed systems can also utilize a new programming language that improves efficiency and security of the distributed digital ledger transaction network.

Abstract: A computer comprising a plurality of processors, each of which are configured to perform operations on data during a compute phase for the computer and, following a pre-compiled synchronisation barrier, exchange data with at least one other of the processors during an exchange phase for the computer, wherein of the processors in the computer is indexed and the data exchange operations carried out by each processor in the exchange phase depend upon its index value.

Abstract: According to one embodiment, a computer-implemented method for file handling in a hierarchical storage environment includes performing a file access notification process for determining files related to the first file based on enhanced metadata and a priority list defining a likelihood of possible access, in response to receiving a file access notification corresponding to access of a first file. The related files are placed in a highest level storage tier, and the priority list is updated.

Abstract: Various embodiments provide for systems, methods, and computer-readable storage media that improve media content search functionality and curation of media content. For instance, various embodiments described in this document provide features that can present media content items in the form of dynamic collection of media content items upon a user typing into a search bar. In another instance, various embodiments described herein improve media content search functionality by ranking user facing search features using input signals.

Abstract: The blockchain generation apparatus 1 includes: a parameter calculator 122 that identifies a parameter type to be used for linkage of the new block, based on block approval method data 114, and calculates a value for the identified parameter type based on transaction datasets which are related to an identifier of a generating party; a block generation condition checker 125 that determines whether the generating party is qualified to generate the new blockchain data, based on the value calculated by the parameter calculator 122; and a blockchain generator 126 that tries to generate the new blockchain by referring to the shared data when the block generation condition checker 125 determines that the generating party is qualified. An identifier of the blend pattern included in the block approval method data 114 specifies a combination of the plurality of parameter types that conflict with each other.

Abstract: A system for directory level atomic commits includes an interface and a processor. The interface is configured to receive an indication to provide a set of files. The processor is configured to determine whether a file in a directory has been either 1) atomically committed or 2) written by a non-atomic process and not designated as deleted and provide the file as one file of the set of files in the event that the file in the directory has been either 1) atomically committed or 2) written by a non-atomic process and not designated as deleted.

Abstract: A method and associated systems for a deduplication module of a database-management system. The database-management system, upon receiving a request to perform a transaction that will revise a stored database record, uses memory-resident logs and previously generated database-maintenance tables to: i) identify a first logical block that identifies an updated value, stored in a physical block of storage, to be used to update the database record; and ii) further identify a second logical block that stores in the database a corresponding existing value of the same record. After determining that the first and second logical blocks reside on physical storage devices within the same storage tier, the system directs the deduplication module to associate both logical blocks with the first physical block.

Abstract: A first request may be received to update a first set of values. The first set of values may be stored at a first location within a first data page of a database. The first location may be read-only. In response to the receiving of the first request, a first set of records may be inserted into a second data page. The first set of records may include the update of the first set of values. In response to the inserting, a forward pointer may be stored in the first data page that points to the first set of records on the second data page. One or more committed values may be identified on the second data page. In response to the identifying, the one or more committed values may be merged from the second data page to a third data page.

Abstract: A printing apparatus according to the present invention stores in a predetermined storage area, identification information of a print job including a print setting as a monitoring target in accordance with an extension program, for a job registration event issued according to a basic program when the print job is received. Then, for the job registration event issued according to the basic program, a job log including the identification information that has been stored in accordance with the extension program, in a dedicated file different from a normal file.

Abstract: A sparse file is stored without holes by storing a data portion of the sparse file using a parallel log-structured file system; and generating an index entry for the data portion, the index entry comprising a logical offset, physical offset and length of the data portion. The holes can be restored to the sparse file upon a reading of the sparse file. The data portion can be stored at a logical end of the sparse file. Additional storage efficiency can optionally be achieved by (i) detecting a write pattern for a plurality of the data portions and generating a single patterned index entry for the plurality of the patterned data portions; and/or (ii) storing the patterned index entries for a plurality of the sparse files in a single directory, wherein each entry in the single directory comprises an identifier of a corresponding sparse file.

Abstract: Various embodiments are provided for managing a global cache coherency in a distributed shared caching for a clustered file system (CFS). The CFS manages access permissions to an entire space of data segments by using the DSM module. In response to receiving a request to access one of the data segments, a calculation operation is performed for obtaining most recent contents of one of the data segments. The calculation operation performs one of providing the most recent contents via communication with a remote DSM module which obtains the one of the data segments from an associated external cache memory, instructing by the DSM module to read from storage the one of the data segments, and determining that any existing contents of the one of the data segments in the local external cache are the most recent contents.

Abstract: Systems. Methods, and Computer Program Products are provided for managing a global cache coherency in a distributed shared caching for a clustered file systems (CFS). The CFS manages access permissions to an entire space of data segments by using the DSM module. In response to receiving a request to access one of the data segments, a calculation operation is performed for obtaining most recent contents of one of the data segments. The calculation operation performs one of providing the most recent contents via communication with a remote DSM module which obtains the one of the data segments from an associated external cache memory, instructing by the DSM module to read from storage the one of the data segments, and determining that any existing contents of the one of the data segments in the local external cache are the most recent contents.

Abstract: Embodiments of the present invention provide a method, system and computer program product for software prioritization of concurrent transactions for embedded conflict arbitration in transactional memory management. In an embodiment of the invention, a method for software prioritization of concurrent transactions for embedded conflict arbitration in transactional memory management can include setting different hardware registers with different priority values for correspondingly different transactions in a transactional memory system configured for transactional memory management according to respective priority values specified by priority assignment logic in external software support for the system. The method also can include detecting a conflict amongst the transactions in the system. Finally, the method can include applying conflict arbitration within the system based upon the priority values specified by the priority assignment logic in the external software support for the system.

Abstract: Embodiments of systems and methods are described for instant provisioning (e.g., cloning, copying, replicating, migrating, backing up, restoring, etc.) of virtual machines, virtual machine files, or other types of files (e.g., database files). In some implementations, a cloned virtual machine file can present an illusion to multiple applications accessing the cloned file that the cloned file contains all the appropriate data (e.g., a file system volume), even while the clone file is still being filled with relevant data. In some embodiments, the systems and methods use a file system filter driver to intercept and redirect certain input/output (I/O) requests to the cloned file. The file system filter driver may use a data structure (e.g., a bitmap) to determine which logical units of the clone file have already been filled with data. In some embodiments, the systems and methods use the operating system to handle cached I/O requests, which may improve efficiency.

Abstract: A method is used in managing updating of metadata of file systems. Changes in metadata of a file of a file system are stored in a journal upon receiving an I/O request for the file of the file system. The I/O request results in update of metadata of the file of the file system. The journal includes metadata transactions upon the file system. Changes to metadata of the file are stored in a volatile memory of a data storage system upon receiving subsequent I/O requests resulting in update of metadata of the file of the file system. Metadata of the file of the file system is updated with information derived from metadata changes stored in the journal.

Abstract: A computer-implemented method for detecting malware may include 1) identifying a file represented within a file system by a file name, 2) identifying a creation of a hard link to the file that uses an additional file name, 3) updating a database with an association between the file name and the additional file name, 4) identifying a file-closing operation within the file system and determining that the target file name of the file-closing operation was removed from the file system after the file-closing operation, 5) querying the database with the target file name and identifying an existing file name representing the file based on the association, and 6) scanning the existing file name for malware in response to the file-closing operation instead of scanning the target file name because the target file name was removed from the file system. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: Systems. Methods, and Computer Program Products are provided for managing a global cache coherency in a distributed shared caching for a clustered file systems (CFS). The CFS manages access permissions to an entire space of data segments by using the DSM module. In response to receiving a request to access one of the data segments, a calculation operation is performed for obtaining most recent contents of one of the data segments. The calculation operation performs one of providing the most recent contents via communication with a remote DSM module which obtains the one of the data segments from an associated external cache memory, instructing by the DSM module to read from storage the one of the data segments, and determining that any existing contents of the one of the data segments in the local external cache are the most recent contents.

Abstract: For the purpose of mapping an inbound Electronic Data Interchange (EDI) transaction to one or more outputs there are operations comprising receiving an inbound EDI transaction, and translating the inbound EDI transaction to any combination of EDI outbound transactions and non-EDI outbound transactions. Such translation is performed according to a map file, which is generated as follows. The inbound and any outbound EDI transactions are defined, and templates of the inbound and outbound EDI transactions are also defined. Then, mappings between the template of the inbound EDI transaction and the templates of the outbound EDI transactions are defined. A mapping between the inbound EDI transaction and application data may also be defined, where the application data may include a text file, a XML file, and/or a table of a database. Rules relating to or governing the mapping of the inbound EDI transaction to outputs may also be created. These definitions, mappings and rules are stored in the map file.

Abstract: Systems. Methods, and Computer Program Products are provided for managing a global cache coherency in a distributed shared caching for a clustered file systems (CFS). The CFS manages access permissions to an entire space of data segments by using the DSM module. In response to receiving a request to access one of the data segments, a calculation operation is performed for obtaining most recent contents of one of the data segments. The calculation operation performs one of providing the most recent contents via communication with a remote DSM module which obtains the one of the data segments from an associated external cache memory, instructing by the DSM module to read from storage the one of the data segments, and determining that any existing contents of the one of the data segments in the local external cache are the most recent contents.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for file system management. In one aspect, a method includes receiving a request at a kernel to perform a file operation on a particular file; identifying a flag bit associated with the file; invoking user space file handler to perform particular action when the flag bit is set; determining whether notification that action has been performed by file handler is received; and allowing the file operation on the file when notification is received.

Abstract: The invention relates to a computer-implemented method for selecting a data set from a plurality of data sets by means of a multi-touch input device, the data sets being connected with each other according to a topology of a graph, the input device comprising: a multi-touch screen, a motion sensing unit, and an acceleration sensing unit, the method comprising: displaying a view by the multi-touch screen, the view comprising a plurality of GUI elements, each GUI element representing one of the data sets, whereby one of the GUI elements is used as current GUI element; detecting, by the motion sensing unit, one or more first tilting motions; determining at least one candidate GUI element in dependence on the one or more first tilting motions; highlighting the at least one candidate GUI element; detecting a first shaking motion; automatically selecting, upon the detection of the first shaking motion, the data set represented by the highlighted GUI element.

Abstract: An image processing apparatus which is capable of improving ease of operation for users and also improving security when destinations are made public. The image processing apparatus is shared by a plurality of users and capable of selecting a destination from a plurality of address books and carrying out file transmission to the destination. It is determined whether or not a user has logged in, and when it is determined that the user has logged in, only personal addresses for the logged-in user are displayed on a display unit. The personal destinations displayed on the display unit are switched to destinations other than the personal destinations according to selection by the user. When it is determined that the user has not logged in, all destinations which are registered in the plurality of address books are displayed on the display unit.

Abstract: A method begins, in accordance with a segmentation approach, dividing large data to be stored into regions and dividing a region into segments. The method continues by generating preliminary DSN storage information for one or more regions. The method continues by identifying other large data stored in the DSN that has a relationship with the large data to be stored in the DSN and retrieving DSN storage information for the other large data. The method continues by comparing, at a region level, the preliminary DSN storage information with the retrieved DSN storage information. When a region of the large data to be stored has substantially similar DSN storage information as a region of the other large data, the method continues by utilizing the DSN storage information for the region of the other large data for the DSN storage information of the region of the large data.

Abstract: A container document can include a file node indicating a file and pointing to a location for the file that is separate from the container document on a server. An embedded relationship between the file and the container document can be imitated. The imitation can include responding to user input by performing the update on the file node, and by requesting that the server perform an update on the file that reflects the update performed on the file node. A request for an update to be performed on the file node can be received from a client at the server. In response to the request, the update can be performed on the file node at the server. A corresponding update, which reflects the update performed on the file node, can also be performed on the file at the server.

Abstract: A computer system that improves upon the traditional file system hierarchy is disclosed. The computer system includes a processor and a persistent data storage device that is accessible by the processor. The system also may include file system software that is executed by the processor. The file system software may operate to organize the files of the persistent data storage device into a plurality of records that are contained in a metafile. Within the metafile, the files and directories of the file system may be organized in an inverted hierarchical structure. In the inverted hierarchical structure, records corresponding to child files and child directories of a parent directory may directly point to a record in the metafile that corresponds to the parent directory. In one implementation of the file system, individual records of the metafile may be each addressable by a file identifier.

Abstract: Systems. Methods, and Computer Program Products are provided for managing a global cache coherency in a distributed shared caching for a clustered file systems (CFS). The CFS manages access permissions to an entire space of data segments by using the DSM module. In response to receiving a request to access one of the data segments, a calculation operation is performed for obtaining most recent contents of one of the data segments. The calculation operation performs one of providing the most recent contents via communication with a remote DSM module which obtains the one of the data segments from an associated external cache memory, instructing by the DSM module to read from storage the one of the data segments, and determining that any existing contents of the one of the data segments in the local external cache are the most recent contents.

Abstract: Systems and methods are provided which perform a file level restore by utilizing existing operating system components (e.g., file system drivers) that are natively installed on the target computing device. These components can be used to mount and/or interpret a secondary copy of the file system. For instance, the system can instantiate an interface object (e.g., a device node such as a pseudo device, device file or special file) on the target client which includes file system metadata corresponding to the backed up version of the file system. The interface provides a mechanism for the operating system to mount the secondary copy and perform file level access on the secondary copy, e.g., to restore one or more selected files.

Abstract: A server computer system performs a first set of operations for a first transaction. The first transaction pertaining to data stored in a file system. The server computer system delays a second set of operations for the first transaction and identifies a second transaction pertaining to the data. In response to identifying the second transaction, the server computer system cancels the second set of operations for the first transaction, and cancels a first set of operations for the second transaction.

Abstract: A dispatching system adjusts resources to meet real-time changes in demand. When a customer requests service, a work assignment is generated and sent to an employee. When a customer cancels the requested service, a cancellation code is sent to the employee. The cancellation code informs the employee that the work assignment has been canceled.

Abstract: Nodes of a database service may receive a read request to perform a read of a record stored by the database service and a transaction request to perform a transaction to the record. First and second indications of time may be associated with the read and transaction, respectively. A potential read anomaly (e.g., fuzzy read, read skew, etc.) may be detected based, at least in part, on a determination that the first indication of time is within a threshold value of the second indication of time. In response to detecting the potential read anomaly, the read may be performed after the transaction specified by the transaction request, regardless of whether the first indication of time is indicative of an earlier point in time than the second indication of time.

Abstract: Multi-stream analytics is disclosed. An example method of multi-stream analytics with a query engine includes punctuating unbounded streaming data into data chunks, each of the data chunks representing a bounded data set in the unbounded streaming data. The method also includes processing one of the data chunks. The method also includes rewinding a query instance for processing another of the data chunks.

Abstract: A system and method for receiving and tracking a plurality of transactions and distributing the transactions to at least two replication queues over a network. The system and method comprise a global queue for storing a number of the received transactions in a first predetermined order. The system and method also comprise a sequencer coupled to the global queue for creating a copy of each of the transactions for each of said at least two replication queues and for distributing in a second predetermined order each said copy to each of said at least two replication queues respectively, said copy containing one or more of the received transactions.

Abstract: An data processing method includes: determining, from execution-target data, a plurality of data items included in the execution-target data, a same series of a plurality of processes being executed for the plurality of data items; associating identification information with each of the plurality of data items; and executing batch processing of the plurality of data items with which the identification information has been associated.

Abstract: An object based file system for storing and accessing objects is disclosed. The file system may be implemented as a method in hardware, firmware, software, or a combination thereof. The method may include receiving from an application program an object write request. A selected storage node on which to store the object may be selected, including identifying a least busy storage node and/or a least full storage node. The object and the object write request may be sent to the selected storage node. A write success message may be received from the selected storage node. The successful writing of the object may be reported to the application program. An object identifier and object data may be stored in a database.

Abstract: A system for an efficient data rehydration comprises a server, one or more reader device managers, a writer device manager, and a verifier. The server is for receiving a restore list comprising a plurality of storage locations and lengths for performing a data rehydration. The one or more reader device managers is for reading a data set indicated by the restore list by reading the plurality of storage locations for the lengths from one or more storage nodes. The plurality of storage locations and lengths indicate chunks from a client system stored as part of a full or as an incremental backup session on a storage device attached to a storage node. The writer device manager is for transferring the data set to a save node. A verifier is for verifying transfer of the data set.

Abstract: Example apparatus and methods protect state in a file system using a message-passing multi-threaded journal. One example apparatus stores, in memory, data and metadata affected by a file system transaction. The apparatus may run a thread that receives the file system transaction from the file system and that produces a set of atomic operations configured to complete the file system transaction. The apparatus may also run a thread that records a set of journal entries associated with the set of atomic operations to protect the file system while the atomic operations complete. The journal entries may be written on a non-volatile computer-readable medium. The apparatus may also run a thread that co-ordinates usage of space on the computer-readable medium. Rather than synchronizing journal activity with locks, the threads running on the example apparatus may synchronize their activity using message passing.

Abstract: Embodiments of the invention relate to supporting coordinated access to a file system's shared disk storage subsystem using an automatic alignment of a parallel file access protocol and metadata management on a per object basis. A file server (among servers in the cluster) receives a client's request to access a file stored by the file system in the storage subsystem using a parallel file access protocol. If the file system has selected a file server to serve as a metadata manager of said file, the file server uses the selected file server to coordinate access to the file's metadata. If the file system has not selected a file server to serve as the metadata manager of the file, the file system selects the file server that received said request as the metadata manager for said file until a file close request operation is received.

Abstract: A transactional sealed storage system enables data to be accessed according to transactional properties and also enables access to the data to be restricted to secured applications. The transactional properties according to which the data may be accessed may include, for example, at least some levels of atomicity, consistency, isolation, and durability. The access to the data may be restricted by, for example, employing a double layer security policy that involves encrypting the data and also authenticating any application that requests access to the encrypted data.

Abstract: Systems. Methods, and Computer Program Products are provided managing global cache coherency and reducing contention and messaging traffic in a distributed shared caching for a clustered file systems (CFS). The CFS manages access to data segment space of the data segments shared between a cluster of nodes by using the file access component. A CFS disk space is partitioned into regions and disk objects are partitioned into groups. Each of the regions and the groups are assigned to a CFS agent residing on each one of the cluster of nodes.

Abstract: Systems. Methods, and Computer Program Products are provided for managing a global cache coherency in a distributed shared caching for a clustered file systems (CFS). The CFS manages access permissions to an entire space of data segments by using the DSM module. In response to receiving a request to access one of the data segments, a calculation operation is performed for obtaining most recent contents of one of the data segments. The calculation operation performs one of providing the most recent contents via communication with a remote DSM module which obtains the one of the data segments from an associated external cache memory, instructing by the DSM module to read from storage the one of the data segments, and determining that any existing contents of the one of the data segments in the local external cache are the most recent contents.

Abstract: Systems. Methods, and Computer Program Products are provided for managing a global cache coherency in a distributed shared caching for a clustered file systems (CFS). The CFS manages access permissions to an entire space of data segments by using the DSM module. In response to receiving a request to access one of the data segments, a calculation operation is performed for obtaining most recent contents of one of the data segments. The calculation operation performs one of providing the most recent contents via communication with a remote DSM module which obtains the one of the data segments from an associated external cache memory, instructing by the DSM module to read from storage the one of the data segments, and determining that any existing contents of the one of the data segments in the local external cache are the most recent contents.

Abstract: A method and system for storage checkpointing of an independent computer application. The independent computer application is launched by a coordinator; and the coordinator installs at least one of an exec interceptor and a fork interceptor. The coordinator also installs at least one file operations interceptor for all file operations and registers the independent computer application with the coordinator. The independent computer application is run and the at least one file operations interceptor is called upon encountering a file operation. The file operations interceptor logs a file event in a file operations database and passes the operation to at least one of a file system, an operating system, at least one or more device drivers, and a storage disk via a storage interface. The file operations interceptor also verifies that the file operation has been issued.

Abstract: Systems. Methods, and Computer Program Products are provided managing a global cache coherency and reducing messaging traffic for coordination of access permissions in a distributed shared caching for a clustered file systems (CFS). The CFS manages access permissions to an entire space of the data segments by using the DSM module. In response to processing a request message from a remote DSM module to access one of the data segments, including in a response message permission to access the one of the data segments, and deciding if one of a transfer of ownership, and most recent contents of the one of the data segments should be included in the response message for the permission to access the one of the data segments. The last two components of the response message depend upon availability of the one of the data segments that is requested in a local external cache.

Abstract: In various embodiments, a system, method, and related computer-readable storage medium to process data transactions are provided. In one example, a system is arranged to process data transactions in a data store including a plurality of databases. The system includes a computer interface module to receive a data transaction request from at least one requesting computer and a data access layer having one or more processors to identify at least one database in the plurality of databases. The data access layer is to define an abstraction layer between a computer interface module and the plurality of databases. Other embodiments are disclosed.

Abstract: Processing for a data package is disclosed. An operation is received including a data package. The operation is performed with respect to each of one or more data objects included in the data package, in a manner determined at least in part by a context data applicable to the operation.

Abstract: An object display apparatus displays a plurality of object at respective display positions, and receive a designation to set one of the plurality of displayed object as an object of interest. Upon reception of an addition or deletion instruction of one or more objects with respect to the plurality of displayed objects, a display of the objects is updated by moving object other than the object of interest while keeping the display position of the designated object of interest.