Abstract: A processing device translates a set of federated queries submitted to a federated data source server into a set of native data source queries for the particular type of data source using a federated data source connector for a particular type of data source, inputs the set of native data source queries for the particular type of data source into a component corresponding to the particular type of data source, marks the component in view of the set of native data source queries, and generates output indicating whether one or more of the set of native data source queries is not acceptable as input for the component. The marked component and the output indicate whether the federated data source connector for the particular type of data source includes an error.

Abstract: A cache system stores a number of different datasets. The cache system includes a number of cache units, each in a state associated with one of the datasets. In response to determining that a hit ratio of a cache unit drops below a threshold, the state of the cache unit is changed and the dataset is replaced with that associated with the new state.

Abstract: Implementations for query data splitting are disclosed. In one example, the method includes receiving, by a processing device, a first query and a second query, determining that the second query is a subset of the first query, determining a first set of attributes associated with the first query and a second set of attributes associated with the second query, and determining, by the processing device, whether to submit the second query or the first query to a database in view of the first set of attributes and the second set of attributes.

Abstract: A method performed by a server computing system includes generating an operation for a web service, the operation corresponding to at least one main method of a console application, receiving input data from a client device through the operation, writing the input data to a memory store, executing the console application using the input data of the memory store, injecting code into the console application, the code to change input/output streams from a console input/output to the memory store. The method further includes writing an output of the console application to the memory store.

Abstract: Methods, systems, and computer program products for converting a query to a canonical query; inserting the query and the canonical query into a database; searching one or more viewable sets stored in the database to determine whether the canonical query is similar to one or more canonical queries associated with the one or more viewable sets; and upon determining a similar canonical query, returning a first view suggestion associated with a first viewable set of the one or more viewable sets that includes the similar canonical query.

Abstract: Methods, systems, and computer program for implementing data source security cluster are provided. Security tokens may be generated for a plurality of data sources. Clients may request a security token from each data source. The client may send the security tokens and a data query to a federation engine. The federation engine may generate a plurality of sub-queries from the query. The federation engine may match a sub-query and particular security token to a data source. The federation engine may validate each security token and send, to each data source, the matching sub-query for that data source. Each data source may send a result to a sub-query to the federation engine, which may join all of the results into a virtual view.

Abstract: An example method of processing a query at a plurality of storage devices includes receiving a dual query from a client and generating a synchronous query and an asynchronous query based on the dual query. The dual query includes a set of conditions for selecting data from a set of database tables. The method further includes sending the synchronous query to a first storage device, sending the asynchronous query to a second storage device, and receiving a result set of the synchronous query. The result set of the synchronous query includes data selected from a set of database records in a set of primary database tables, which is stored in the first storage device and is a subset of the set of database tables. The method further includes marking a database record. A marked database record indicates usage of the data selected from the database record within a time period.

Abstract: An example system for processing a federated query includes a query proxy that receives a federated query including a plurality of source queries and receives an indication that a failed set of one or more source queries failed to execute successfully. Each source query is specific to an autonomous data source belonging to a federation. The system also includes a data federation engine that identifies a plurality of autonomous data sources to which to send the plurality of source queries. The plurality of autonomous data sources belong to the federation. The system further includes a query fail analyzer that updates a data structure to reflect the unsuccessful execution of one or more source queries of the failed set.

Abstract: A method of processing a federated query includes receiving a first federated query from a first client and receiving a second federated query from a second client. The first federated query includes a first source query that is in accordance with a target data source's query model, and the second federated query includes a second source query. The method also includes sending the second source query to the target data source and determining whether the second source query has failed at the target data source. The method further includes in response to determining that the second source query has failed, migrating the second source query in accordance with the first source query.

Abstract: A method and system for password mediation including receiving, within an operating system network stack of a client device, a hypertext transfer protocol (HTTP) request message issued by a client application executing on the client device, the HTTP request message indicating an operation to be performed for a user of the client application at a destination system; requesting, by the client device, security information for the user with respect to the destination system; modifying, by the client device, the received HTTP request message to include the security information; and sending, by the client device, the modified HTTP request message to the destination system.

Abstract: An example method of processing a query at a plurality of storage devices includes receiving a dual query from a client and generating a synchronous query and an asynchronous query based on the dual query. The dual query includes a set of conditions for selecting data from a set of database tables. The method further includes sending the synchronous query to a first storage device, sending the asynchronous query to a second storage device, and receiving a result set of the synchronous query. The result set of the synchronous query includes data selected from a set of database records in a set of primary database tables, which is stored in the first storage device and is a subset of the set of database tables. The method further includes marking a database record. A marked database record indicates usage of the data selected from the database record within a time period.

Abstract: Systems and methods are provided for data hub architecture to provide actionable data from remote sensor feeds. An exemplary method includes receiving, by a master hub of a plurality of data hubs, a request to access at least one first sensor in a first location and at least one second sensor in a second location from a data client, wherein the master hub is closest to the data client of the plurality of data hubs on a network, determining a first data hub that is closest to the at least one first sensor on the network, and determining a second data hub that is closest to the at least one second sensor on the network. The method further includes querying the first data hub and the second data hub for data and communicating the data to the data client.

Abstract: An example method for processing a batch job that includes a plurality of sequentially ordered tasks includes obtaining a message that includes inputs of a plurality of tasks included in a batch job. The plurality of tasks includes a first task that is sequentially ordered before a second task. The method also includes assigning tasks of the plurality of tasks to different computing nodes. The first task is assigned to a first computing node associated with a first public key, and the second task is assigned to a second computing node associated with a second public key.

Abstract: A method performed by a computing system includes: with a resource monitoring module, providing to a code transformation module, a set of references to methods within a source code, the methods comprising code associated with a resource, with the code transformation module, creating a modified source code by inserting new code into the source code, the new code to close the resource at the end of each method referenced by the set of references, compiling the modified source code to create an application, with the resource monitoring module, during execution of the application, determining that an exception has occurred as a result of an attempt to access the resource when the resource is closed, and with the resource monitoring module, updating the set of references to include a new reference to a new method, the new method corresponding to the exception.

Abstract: A method performed by a computing system includes creating a graph, wherein nodes of the graph represent data objects of a data storage cluster, wherein edges of the graph represent joins between data objects represented by both nodes of respective edges, wherein node values of the nodes and weights of the edges are based on statistics related to use of the data objects. The method further includes assigning a first subset of the data objects to a relational database storage node within the data storage cluster, the first subset of data objects being represented by nodes within a cluster of the graph, and assigning a second subset of the data objects to a non-relational database storage node within the data storage cluster, the second subset of data objects being represented by nodes within the graph that are not part of a cluster.

Abstract: A method and system for password mediation including identifying an HTTP request issued by a client application executing on a client device, the HTTP request indicating an operation to be performed for a user of the client application at a destination system, obtaining user credentials using the HTTP request, requesting security information for the user with respect to the destination system, determining whether the user is allowed to perform the operation based on the security information, and upon determining that the user is allowed to perform the operation, modifying the HTTP request based on the security information and sending the modified HTTP request to the destination system.

Abstract: Methods, systems, and computer program products for implementing a stability measurement are provided. A computer-implemented method for measuring stability may include creating a destabilized data source for a data source, wherein errors are injected into the destabilized data source; sending test queries to the destabilized data source and the data source; and comparing results of the test queries in order to calculate a stability measurement.

Abstract: An example method of processing a plurality of queries includes determining, at a database driver, that a first query and a second query are similar. The first query is sent from a first execution thread executing in an application server. The method also includes generating, at the database driver, a union query based on the first and second queries. The method further includes submitting the union query to a database that stores database tables from which data is selected based on the first and second queries. The method also includes receiving a combined result set of the union query from the database and submitting the first query against the combined result set. The method further includes receiving, at the database driver, a first result set of the first query in response to submitting the first query against the combined result set.

Abstract: Systems and methods are disclosed for dynamically shifting one or more instances of a service from a first set of servers to a second set of servers. In an embodiment, a system includes a service repository that stores one or more services. The system also includes a deployment manager that deploys a set of instances of a service of the one or more services on a first set of servers and shifts one or more instances of the set of instances to a second set of servers.

Abstract: A mechanism for preventing overload in enterprise application integration (EAI) services. A method includes determining, by a processing device executing enterprise application integration (EAI) system, a first location in a chain of services in the EAI. The method also includes providing, by the processing device, access for insertion of an overload prevention service beginning (OPSB) at the first location in the chain of services in the EAI. The OPSB includes a service in the chain of services and counts number of messages processed in the EAI service. The method also includes determining, by the processing device, a second location in the chain of services in the EAI. The second location occurs after the first location in the chain of services in the EAI. The method further providing, by the processing device, access for the insertion of an overload prevention service end (OPSE) at the second location in the chain of services in the EAI.