| Patent application number | Description | Published |
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| 20100106695 | SCALABLE BLOB STORAGE INTEGRATED WITH SCALABLE STRUCTURED STORAGE - Embodiments of the present invention relate to systems, methods and computer storage media for facilitating the structured storage of binary large objects (Blobs) to be accessed by an application program being executed by a computing device. Generally, the structured storage of Blobs includes a primary structured storage index for indexing Blobs, a secondary hash index that is integrated into the structured storage system, a Blob log stream, and a Blob data stream for storing blocks that include the Blob data. In an embodiment, a block is created and written to a Blob store along with a block list. The block list facilitates the locating of one or more blocks that store the Blob data. In this embodiment, a primary structured storage index and a secondary hash index are updated to facilitate efficient access of the Blob in a structured storage system. | 04-29-2010 |
| 20100106734 | BLOB MANIPULATION IN AN INTEGRATED STRUCTURED STORAGE SYSTEM - Embodiments of the present invention relate to systems, methods and computer storage media for facilitating the structured storage of binary large objects (Blobs) to be accessed by an application program being executed by a computing device. Generally, the manipulation of Blobs in a structured storage system includes receiving a request for a Blob, which may be located by way of a Blob pointer. The Blob pointer allows for the data, such as properties, of the Blob to be identified and located. Expired properties are garbage collected as a manipulation of the Blob data within a structured storage system. In an embodiment, the Blob is identified by a key that is utilized within a primary structured index to located the requested Blob. In another embodiment, the requested Blob is located utilizing a secondary hash index. In an additional embodiment, the Blob is locate utilizing a file table. | 04-29-2010 |
| 20100106808 | REPLICA PLACEMENT IN A DISTRIBUTED STORAGE SYSTEM - Replica placement in a network of nodes is provided. Nodes are selected for replica placement to satisfy location-based preferences. Additionally, nodes are selected for replica placement to spread replicas of the same data over different fault domains and upgrade domains. In some instances, nodes may be selected for replica placement based on load-based information for the nodes. | 04-29-2010 |
| 20100106934 | PARTITION MANAGEMENT IN A PARTITIONED, SCALABLE, AND AVAILABLE STRUCTURED STORAGE - Partition management for a scalable, structured storage system is provided. The storage system provides storage represented by one or more tables, each of which includes rows that represent data entities. A table is partitioned into a number of partitions, each partition including a contiguous range of rows. The partitions are served by table servers and managed by a table master. Load distribution information for the table servers and partitions is tracked, and the table master determines to split and/or merge partitions based on the load distribution information. | 04-29-2010 |
| 20100114848 | ATOMIC MULITPLE MODIFICATION OF DATA IN A DISTRIBUTED STORAGE SYSTEM - Atomic multiple modifications of streams is provided. Streams are selected for the application of an atomic multiple modification. A lock is acquired on the meta-data associated with the streams. Each stream is de-coupled from its name. Multiple modifications are applied to the selected streams. After performing the modifications, names are coupled to the streams. The lock on the meta-data associated with each stream is released. | 05-06-2010 |
| 20100312809 | GEOGRAPHIC CO-LOCATION SERVICE FOR CLOUD COMPUTING - Embodiments of the present invention relate to systems, methods, and computer storage media for geographically organizing the storage of data and hosted services in a distributed computing environment. An allocation constraint is utilized to identify and select a geo-region in which an affinity group that is comprised of a hosted service and/or data is to be physically stored. Additionally, a geo-domain within the geo-region is identified for hosting the hosted service and/or data of the affinity group. A stamp, such as a storage stamp or a computation stamp, is identified on the geo-domain for storing the hosted service and/or the data. The hosted service is stored in an identified computation stamp and the data is stored in an identified storage stamp. In an additional exemplary embodiment, the identification of a geo-domain involves analyzing resource information related to potential geo-domains within a geo-region. | 12-09-2010 |
| 20110099233 | SCALABLE QUEUES ON A SCALABLE STRUCTURED STORAGE SYSTEM - A cloud computing platform contains a structured storage subsystem the provides scalable queues. The cloud computing platform monitors message throughput for the scalable queues and automatically increases or decreases subqueues that provide the operational functionality for each scalable queue. A visibility start time and cloud computing platform time are maintained for each message to provide an approximate first-in-first-out order for messages within each subqueue. A message in a subqueue may be available for processing when the current cloud computing time is greater than the visibility start of the message. | 04-28-2011 |
| 20110099266 | Maintaining Service Performance During a Cloud Upgrade - Systems, methods, and computer storage media for upgrading a domain in a distributed computing environment are provided. Upgrading of the domain includes preparing for the upgrade, upgrading, and finalizing the upgrade. The preparation of the domain includes ensuring predefined quantities of role instances are available in domains other than the upgrade domain. The preparation also includes ensuring that a predefined number of extent replicas are available in domains other than the upgrade domain. The preparation may also include checkpointing partitions within the upgrade domain to facilitate faster loading once transferred to a domain other than the upgrade domain. The finalization may include allowing nodes within the upgrade domain to resume functionality that was suspended during the upgrade. | 04-28-2011 |
| 20110119437 | Sequentially Written Journal in a Data Store - Systems, methods, and computer storage media for storing and retrieving data from a data store in a distributed computing environment are provided. An embodiment includes receiving data at a data store comprising a sequential journal store, RAM, and a non-sequential target store. When RAM utilization is below a threshold, received data is stored to the RAM as a write cache for the target store and the journal store. But, when the utilization is above the threshold, the data is stored to the journal store without write-caching to the RAM for the target store. When the RAM utilization falls below a threshold, data committed to the journal store, but not write-cached to the RAM for the target store, is later read from the journal store and write-cached to the RAM for a target store. | 05-19-2011 |
| 20110119668 | MANAGING VIRTUAL HARD DRIVES AS BLOBS - Cloud computing platforms having computer-readable media that perform methods to manage virtual hard drives as blobs are provided. The cloud computing platform includes fabric computers and blob stores. The fabric computers execute virtual machines that implement one or more applications that access virtual hard drives. The data in the virtual hard drives is accessed, via a blob interface, from blobs in the blob stores. The blob stores interface with a driver that translates some application input/output (I/O) requests destined to the virtual hard drives to blob commands when accessing data in the virtual hard drives. | 05-19-2011 |
