Abstract: A method for recovering data for a file system includes a journal-less recovery process that detects one or more inconsistencies for file system blocks upon a system failure based on one or more comparisons of information for the file system blocks.

Abstract: A system comprising a processor and a memory storing instructions that, when executed, cause the system to receive an input related to a widget on a website; receive a canonical identifier from the widget; determine an identification for a user; determine a social signal for the identified user; produce a stream of related content using the canonical identifier, the identification and the social signal; generate a user interface element for display of the stream of related content; and provide the user interface element for presentation to the user. The disclosure also includes similar methods and computer program products.

Abstract: Described herein is a system that restores a database by processing a portion of the database. The system restores the database to a previous state at a particular time by reverting data entries that have changed since the time to their initial values before the change. Data entries that have changed after the restore time are identified. For the data entries that have changed after the restore time, their initial values before the change are determined from various sources. The system determines a database version that is created most recently before the restore time. The system additionally identifies changes to the database between the restore time and when the database version is created. The initial values can be determined from either the database version or the changes made to the database between the restore time and when the database version is created.

Abstract: Embodiments of the present invention relate to a new data center architecture that provides for efficient processing in distributed analytics applications. In one embodiment, a subnode of a distributed processing node is provided. The subnode includes at least one processor core operatively connected to a memory. A first interconnect operatively connects to the subnode. A second interconnect operatively connects the subnode to a storage. The storage includes a first storage unit and a second storage unit. The second storage unit has lower access time and latency than the first storage unit. A storage manager is provided that is operative to allocate data between the first and second storage units based on access patterns. The storage manager preferentially relocates non-sequentially accessed data to the second storage unit from the first storage unit.

Abstract: Systems and techniques are described for identifying test gaps. A described technique includes identifying production code paths for an application. Each production code path specifies a respective sequence of code of the application that was executed in a production environment. Test code paths are identified for the application. Each test code path specifies a respective sequence of the application that was tested in a test environment. The production code paths are compared to the test code paths to identify a set of test gaps for the application. Each test gap specifies a respective production code path that is not included in the test code paths. Test gap data specifying the test gaps for the application can be provided for presentation to a user.

Abstract: A method for storing and recovering data for a file system includes a write process that performs a write instruction for data that includes atomically updating corresponding data blocks and metadata-links on a storage medium. The metadata-links contain links from data blocks to parent metadata blocks and links from metadata blocks to the parent metadata blocks. A journal-less recovery process that detects one or more inconsistencies for file system blocks comprising data blocks or metadata blocks upon a system failure based on one or more comparisons of information for the file system blocks.

Abstract: A filesystem includes a pool of data blocks and a pool of index blocks. Non-overlapping subpools of data blocks, including a first subpool of data blocks and a second subpool of data blocks, are identified within the pool of data blocks. Likewise, non-overlapping subpools of index blocks, including a first subpool of index blocks and a second subpool of index blocks, are identified within the pool of index blocks. A first file group is mounted within a global namespace on a first mount point on the filesystem. A second file group is also mounted within the global namespace on a second mount point on the filesystem. The first subpool of data blocks and the first subpool of index blocks are allocated to the first mounted file group, and the second subpool of data blocks and the second subpool of index blocks are allocated to the second mounted file group.

Abstract: Embodiments disclosed herein provide systems, methods, and computer readable media to enhance the organization, storage, and retrieval of data. In a particular embodiment, a method provides storing a plurality of incremental data versions in a data repository and maintaining first time information for data items in each of the incremental data versions. The method further provides identifying a first data version of the plurality of incremental data versions and writing data in the data repository to create a second data version based the first data version. The method then provides second time information associated with the creation of the second data and creation of the first data version.

Abstract: Embodiments disclosed herein provide systems, methods, and computer readable media for a converged mechanism for protecting data. In a particular embodiment, a method provides identifying a level of importance for a plurality of data items and tracking changes to the plurality of data items. The method further provides aggregating the changes based on the level of importance and logging the aggregated changes.

Abstract: Embodiments disclosed herein provide systems, methods, and computer readable media for sub-cluster recovery in a data storage environment having a plurality of storage nodes. In a particular embodiment, the method provides scanning data items in the plurality of nodes. While scanning, the method further provides indexing the data items into an index of a plurality of partition groups. Each partition group includes data items owned by a particular one of the plurality of storage nodes. The method then provides storing the index.

Abstract: A technique for multi-layer quality of service (QoS) management in a distributed computing environment includes receiving a workload to run in a distributed computing environment. A workload quality of service (QoS) class for the workload is identified, and the workload QoS class is translated to a storage level QoS class. The workload is scheduled to run on a compute node of the environment, and the storage level QoS class is communicated to a workload execution manager of the compute node. The storage level QoS class is communicated to one or more storage managers of the environment where the storage managers manage storage resources in the environment. The storage managers extend the storage level QoS class to the storage resources to support the workload QoS class.

Abstract: A system for multi-layer quality of service (QoS) management in a distributed computing environment includes a management node hosting a workload scheduler operable to receive a workload and identify a workload QoS class for the workload. The system also includes a plurality of distributed compute nodes. A workload scheduler schedules running of the workload on the compute nodes, translates the workload QoS class to a storage level QoS class, and communicates the storage level QoS class to a workload execution manager of the compute nodes. The workload scheduler communicates the storage level QoS class to one or more storage managers where the storage managers manage storage resources, and the storage managers are operable to extend the storage level QoS class to the storage resources to support the workload QoS class.

Abstract: Embodiments disclosed herein provide systems, methods, and computer readable media for a converged mechanism for protecting data. In a particular embodiment, a method provides identifying a level of importance for a plurality of data items and tracking changes to the plurality of data items. The method further provides aggregating the changes based on the level of importance and logging the aggregated changes.

Abstract: A method for replicating a program and data storage according to one embodiment comprises sending program replication data from a first program to a second program, the second program having an application program that is a replica of an application program of the first program; sending data storage requests from the first program to a first storage system; and replicating data stored in the first storage system in a second storage system. Additional methods, systems, and computer program products are disclosed.

Abstract: A recovery management system and recovery method uses dependency information between clients running in a distributed computer system to automatically determine logical fault domains for the clients. The logical fault domains are then prioritized for a recovery process.

Abstract: Systems and techniques are described for defining test bed requirements. A described technique includes receiving data specifying a first test to be performed for a software application. The data identifies test bed requirements for the first test. Data identifying characteristics of each of available test beds are obtained. Each available test bed includes one or more computing resources on which software tests are performed. The characteristics of each available test bed specify characteristics of the one or more computing resources included in the available test bed. A determination is made that the characteristics of a particular test bed of the available test beds satisfy the test bed requirements for the first test. In response to determining that the characteristics of the particular test bed satisfy the test bed requirements, the first test is performed using the particular test bed.

Abstract: A group of post data items may be identified at a first location. Presentation of the group of post data items may be provided at a second location. A post data item in the group of post data items at the second location may be identified where the post data item is in reply to another post data item in the group of post data item. A user may be identified for notification of the post data item. A determination of whether the user interacted with the group of post data items at the first location or the second location is made and a notification for the user that includes a reference to the group of post data items at the first location or the second location is provided.

Abstract: A technique for multi-layer quality of service (QoS) management in a distributed computing environment includes receiving a workload to run in a distributed computing environment. A workload quality of service (QoS) class for the workload is identified, and the workload QoS class is translated to a storage level QoS class. The workload is scheduled to run on a compute node of the environment, and the storage level QoS class is communicated to a workload execution manager of the compute node. The storage level QoS class is communicated to one or more storage managers of the environment where the storage managers manage storage resources in the environment. The storage managers extend the storage level QoS class to the storage resources to support the workload QoS class.

Abstract: A system for multi-layer quality of service (QoS) management in a distributed computing environment includes a management node hosting a workload scheduler operable to receive a workload and identify a workload QoS class for the workload. The system also includes a plurality of distributed compute nodes. A workload scheduler is operable to schedule running of the workload on the compute nodes. The workload scheduler is operable to translate the workload QoS class to a storage level QoS class and communicate the storage level QoS class to a workload execution manager of the compute nodes. The workload scheduler communicates the storage level QoS class to one or more storage managers where the storage managers manage storage resources, and the storage managers are operable to extend the storage level QoS class to the storage resources to support the workload QoS class.

Abstract: A resource management system and method for automatically creating affinity-type rules for resource management in a distributed computer system uses association inference information for at least one resource to determine resource association between resources, which is used to automatically create an affinity-type rule for the resources. The affinity-type rule is considered when executing a resource management operation.