174 results about "Database caching" patented technology

A runtime adaptable search processor is disclosed. The search processor provides high speed content search capability to meet the performance need of network line rates growing to 1 Gbps, 10 Gbps and higher. he search processor provides a unique combination of NFA and DFA based search engines that can process incoming data in parallel to perform the search against the specific rules programmed in the search engines. The processor architecture also provides capabilities to transport and process Internet Protocol (IP) packets from Layer 2 through transport protocol layer and may also provide packet inspection through Layer 7. Further, a runtime adaptable processor is coupled to the protocol processing hardware and may be dynamically adapted to perform hardware tasks as per the needs of the network traffic being sent or received and/or the policies programmed or services or applications being supported. A set of engines may perform pass-through packet classification, policy processing and/or security processing enabling packet streaming through the architecture at nearly the full line rate. A high performance content search and rules processing security processor is disclosed which may be used for application layer and network layer security. scheduler schedules packets to packet processors for processing. An internal memory or local session database cache stores a session information database for a certain number of active sessions. The session information that is not in the internal memory is stored and retrieved to/from an additional memory. An application running on an initiator or target can in certain instantiations register a region of memory, which is made available to its peer(s) for access directly without substantial host intervention through RDMA data transfer. A security system is also disclosed that enables a new way of implementing security capabilities inside enterprise networks in a distributed manner using a protocol processing hardware with appropriate security features.

A runtime adaptable security processor is disclosed. The processor architecture provides capabilities to transport and process Internet Protocol (IP) packets from Layer 2 through transport protocol layer and may also provide packet inspection through Layer 7. Further, a runtime adaptable processor is coupled to the protocol processing hardware and may be dynamically adapted to perform hardware tasks as per the needs of the network traffic being sent or received and/or the policies programmed or services or applications being supported. A set of engines may perform pass-through packet classification, policy processing and/or security processing enabling packet streaming through the architecture at nearly the full line rate. A high performance content search and rules processing security processor is disclosed which may be used for application layer and network layer security. A scheduler schedules packets to packet processors for processing. An internal memory or local session database cache stores a session information database for a certain number of active sessions. The session information that is not in the internal memory is stored and retrieved to/from an additional memory. An application running on an initiator or target can in certain instantiations register a region of memory, which is made available to its peer(s) for access directly without substantial host intervention through RDMA data transfer. A security system is also disclosed that enables a new way of implementing security capabilities inside enterprise networks in a distributed manner using a protocol processing hardware with appropriate security features.

A local database cache enabling persistent, adaptive caching of either full or partial content of a remote database is provided. Content of tables comprising a local cache database is defined on per-table basis. A table is either: defined declaratively and populated in advance of query execution, or is determined dynamically and asynchronously populated on-demand during query execution. Based on a user input query originally issued against a remote DBMS and referential cache constraints between tables in a local database cache, a Janus query plan, comprising local, remote, and probe query portions is determined. A probe query portion of a Janus query plan is executed to determine whether up-to-date results can be delivered by the execution of a local query portion against a local database cache, or whether it is necessary to retrieve results from a remote database by executing a remote query portion of Janus query plan.

A method and apparatus for efficiently processing data requests in a network oriented n-tier database environment is presented. According to one embodiment of the invention, certain or all data from the tables of a database server device can be maintained in tables on the client device in a client side database cache server system. This local cache allows the network oriented n-tier database system to eliminate the expense of repetitive network transmissions to respond to duplicate queries for the same information. Additionally, the local client device may also keep track of what data is cached on peer network nodes. This allows the client to request that data from a peer database cache server and off load that burden from the database server device. Moreover, the local client may also keep statistics regarding the frequency of requested data in order to optimize the data set maintained in the local database cache server.

Database data is reliably maintained and invalidated based on actual changes to data in the database. The dependencies of a received query can be determined by submitting a version of the received query to the database through a native facility provided by the database to analyze how query structures are processed. The caching system can access the results of the facility to determine the tables, rows, or other partitions of data a received query is dependent upon or modifies. An abstracted form of the query can be cached with an indication of the tables, rows, etc. that queries of that structure access or modify. The tables a write or update query modifies can be cached with a time of last modification. A component can be implemented at or on the system of the database to directly detect changes to the database data. This component can monitor transactional information maintained by the database itself to determine when changes to the database occur. This component can communicate with the cache to provide notification of changes to the database.

A server provides Web responses that can include content from data tables in a database. The server maintains a cache (e.g., in system memory) that can store content (including content from data tables) so as to increase the efficiency of subsequently providing the same content to satisfy client Web requests. The server monitors data tables for changes and, when a change in a particular data table occurs, invalidates cached entries that depend on a particular data table. Further, in response to a client Web request for a Web response, the server assigns a database cache dependency to at least a portion of a constructed Web response (e.g., to content retrieved from a data table) based on commands executed during construction of the Web response. The at least a portion of the constructed Web response is subsequently cached in a cache location at the server.

Methods, systems, and articles of manufacture consistent with the present invention provide managing a distributed database cache. A database cache is provided. The database cache is distributed over at least two data processing systems.

The embodiment of the invention discloses a database cache management method and a database server. The method comprises the following steps of: pre-establishing a record cache for a data sheet in a database, and reading and writing data by the record cache by taking a data row as a unit; in the event of receiving a data inquiry request of a client, searching requested data in the record cache; if the searching process is failed, searching the requested data from a page cache of the database; and returning the data searched from the record cache or the page cache to the client. By utilizing the scheme, the two caches are included in the same database server, wherein the record cache is used for reading and writing data by taking the data row as the unit; the record cache can be only updated when only a small amount of hotspot data is changed, therefore, the cache utilization rate of the database server is increased; and the cache updating frequency is reduced.

A system and method to generate an improved layout of a data grid in a database environment is provided. The data grid is a clustered in-memory database cache comprising one or more data fabrics, where each data fabric includes multiple in-memory database cache nodes. A data grid advisor capability can be used by application developers and database administrators to evaluate and design the data grid layout so as to optimize performance based on resource constraints and the needs of particular database applications.

A method for encrypting a database, according to which a dedicated encryption module is placed inside a Database Management Software above a database cache. Each value of the database is encrypted together with the coordinates of said value using a dedicated encryption method, which assumes the existence of an internal cell identifier that can be queried but not tampered.

The invention discloses a data synchronization method, apparatus and system. The data synchronization method comprises the steps that a data synchronization source end generates a real-time notification for current data modification after determining that data of a source end database is modified, and sends the real-time notification to a data synchronization target end; and the data synchronization target end analyzes the real-time notification to obtain data modification related information after receiving the real-time notification, and updates cache of a target end database according to an analysis result. By applying the scheme, the target end can update the cache of the local database directly according to the information carried in the real-time notification after receiving the real-time notification, or initiate monitoring of the local database to update cache data in first time after local data is synchronized, thereby achieving the effect of shortening a synchronous updating time delay of the cache.

A system and method for smart caching, in which caching is performed according to one or more functional criteria, in which the functional criteria includes at least time elapsed since a query was received for the data. Preferably at least data is cached.

The invention relates to a method utilizing cache tables to improve insertion performance of data in a database, which includes firstly, building two database cache tables which are based on internal memory and have the same structure with a target data table to be inserted finally; secondly, inserting data into a first cache table, importing the data of the first cache table to the target data table after the data of the first cache table are higher than the maximum number threshold, inserting new data to a second cache table if the new data are required to be inserted to the database during the import process, and then importing data of the second cache table to the target data table after the data of the second cache table are higher than the maximum number threshold. By the method, the insertion performance of the data in the database can be improved greatly without updating of hardware or dead embracing of the database.

The application provides a system and a method for disaster recovery in internet application, so that a problem of data access in large-scale internet application can be solved. The disaster recovery system, which is a complete set of solution schemes, carries out leveled disaster recovery on an internet application system; and real-time active-standby synchronization is carried out respectively at various levels including a database, caching, and service access. Therefore, it can be ensured a standby computer is immediately switched for usage when there is a problem at the database; and when there are invalidated cache data, data can be loaded from a standby cache file; and when a service logic server fails to carry out access, the access can be carried out form the standby computer. Because the whole set of the disaster recovery system does not carry out disaster recovery for a single point, a data access situation in large-scale application can be well adapted to, thereby maximizing service availability for users and further ensuring security and an access success rate for large internet data access.

The invention provides a method and a system for the centralized management of database caches. The method comprises the following steps that: step S1, a database server sends database operating information to a database cache server; step S2, the database cache server performs corresponding operations on the database caches according to the database operating information, and returns an operating result to a database server; and step S3, the database server performs corresponding operations on a database according to the operating result. Through the centralized management of the database caches, the method and the system deploy a unified database cache server for a plurality of database servers, have no need to maintain one database cache on each database server, and perform corresponding operations on the database caches before operating the database, so the problem that a plurality of the database caches are synchronized while the database is synchronized is avoided, and the system resource is saved.