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公开(公告)号：US11741050B2
公开(公告)日：2023-08-29
申请号：US17162501
申请日：2021-01-29
Applicant: salesforce.com, inc.
IPC: G06F16/172 , G06F16/16 , G06F16/182 , G06F16/14
CPC classification number: G06F16/172 , G06F16/148 , G06F16/156 , G06F16/164 , G06F16/1824
Abstract: Techniques are disclosed relating to managing distributed storage of data for various entities according to classifications for these entities. A database node of a distributed storage system may receive, from a first entity of a plurality of entities, a request to store a set of data. The database node may further obtain metadata associated with the first entity, wherein the metadata specifies one of a plurality of classifications for the entities. The database node may provide the set of data to one or more of a plurality of caches for storage. The caches may be located in two or more availability zones and are configured to store the set of data based on the classification for the first entity identified in the metadata associated with the first entity. The database node may also store the set of data in a shared object storage coupled to the database node.
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公开(公告)号：US11500836B2
公开(公告)日：2022-11-15
申请号：US15634786
申请日：2017-06-27
Applicant: salesforce.com, inc.
Inventor： Jameison Bear Martin , Nathaniel Wyatt , Gary J. Baker , Randy Spalten
Abstract: System and methods are provided for creating a tenant of a database system, the tenant to have tenant data stored in an immutable storage of the database system associated with a tenant identifier. A request may be received at the database system to create a new tenant. A template tenant metadata of a template tenant may be selected at the database system to create the new tenant based on the received request. A new tenant identifier may be created at the database system based on the selected template tenant metadata. The new tenant may be created by associating the new tenant identifier with a snapshot of at least a portion of the template tenant metadata at a point in time when the template tenant metadata is made accessible to the new tenant. Systems and methods are also provided for removing a tenant of a database system by removing references to a tenant identifier.
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公开(公告)号：US10592353B2
公开(公告)日：2020-03-17
申请号：US15634796
申请日：2017-06-27
Applicant: salesforce.com, inc.
Inventor： Jameison Bear Martin , Nathaniel Wyatt , Patrick James Helland , Thomas Fanghaenel , Terry Chong , Subho Sanjay Chatterjee
Abstract: Systems and methods are provided for performing a point-in-time restore of data of a first tenant of a multitenanted database system. Metadata can be located to identify an archival version of first data of the first tenant stored in immutable storage of the database system. The archival version includes a most recently committed version of each datum prior to a first point in time. By using the metadata, a restore reference set is mapped into a target database instance of the database system. The mapping can be performed when all existing data for a tenant is to be the archival version, and where versions of data and records committed after the point in time are not available to the target database instance.
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公开(公告)号：US10346386B2
公开(公告)日：2019-07-09
申请号：US15343969
申请日：2016-11-04
Applicant: salesforce.com, inc.
Inventor： Subho Sanjay Chatterjee , Patrick James Helland , Nathaniel Wyatt , James E. Mace , Punit B. Shah
IPC: G06F16/23
Abstract: Systems and methods provide multi-version concurrency control of database records with uncommitted transactions. The system and methods may include receiving a query regarding a transaction counter number. When a transaction header identifying data is updated with the assigned transaction counter number, the updated transaction header may be used in identifying data as an instance of multiversion concurrency control information by the received query. A key lookup may be performed, and when the key lookup encounters an uncommitted row for a transaction number, a corresponding transaction header identifying data to identify a data array element to determine whether the transaction number is committed, and determining the transaction counter number when the transaction number is committed. The transaction counter number may be stamped on the row version record when it is determined that the row is committed.
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公开(公告)号：US20180129693A1
公开(公告)日：2018-05-10
申请号：US15343969
申请日：2016-11-04
Applicant: salesforce.com, inc.
Inventor： Subho Sanjay Chatterjee , Patrick James Helland , Nathaniel Wyatt , James E. Mace , Punit B. Shah
IPC: G06F17/30
CPC classification number: G06F16/2343 , G06F16/2329
Abstract: Systems and methods provide multi-version concurrency control of database records with uncommitted transactions. The system and methods may include receiving a query regarding a transaction counter number. When a transaction header identifying data is updated with the assigned transaction counter number, the updated transaction header may be used in identifying data as an instance of multiversion concurrency control information by the received query. A key lookup may be performed, and when the key lookup encounters an uncommitted row for a transaction number, a corresponding transaction header identifying data to identify a data array element to determine whether the transaction number is committed, and determining the transaction counter number when the transaction number is committed. The transaction counter number may be stamped on the row version record when it is determined that the row is committed.
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Patent Agency Ranking
公开(公告)号：US20220121766A1
公开(公告)日：2022-04-21
申请号：US17562387
申请日：2021-12-27
Applicant: salesforce.com, inc.
Inventor： Terry Chong , Jameison Bear Martin , Thomas Fanghaenel , Andrew Tucker , Nathaniel Wyatt , Raghavendran Hanumantharau , Assaf Ben Gur , William Charles Mortimore, JR.
IPC: G06F21/62 , G06F16/2455 , G06F21/60 , H04L9/08
Abstract: System and methods of the disclosed subject matter provide segregating, at a memory storage coupled to a multitenant database system, first tenant data of a first tenant from at least second tenant data of a second tenant, based on a first tenant identifier. A first encryption key associated with the first tenant may be retrieved from a key cache memory based on the first tenant identifier, to encrypt one or more fragments of the first tenant data. The fragments of the first tenant data may be encrypted based on the retrieved encryption key. Non-encrypted header information may be generated for each of the encrypted fragments of the first tenant data, where the header information may have metadata including the first tenant identifier. The encrypted fragments of the first tenant data and the corresponding non-encrypted header information may be stored in the immutable storage.
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公开(公告)号：US11016990B2
公开(公告)日：2021-05-25
申请号：US15667285
申请日：2017-08-02
Applicant: salesforce.com, inc.
Inventor： Nathaniel Wyatt , Steven Raspudic , Venkateswararao Jujjuri
Abstract: Techniques are disclosed relating to fencing out a first one of a plurality of nodes configured to handle requests for data stored in a distributed storage. A database system, in various embodiments, stores a value indicating that the first node is permitted to update a catalog stored at a metadata server. In response to a determination to prevent the first node from updating the catalog and writing to the distributed storage, in various embodiments, the database system updates the value to indicate that the first node is not permitted to update the catalog and instructs the distributed storage to prevent write operations to a particular portion allocated to the first node for writing data.
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公开(公告)号：US20210073189A1
公开(公告)日：2021-03-11
申请号：US16950086
申请日：2020-11-17
Applicant: salesforce.com, inc.
Inventor： Jameison Bear Martin , Nathaniel Wyatt , Gary J. Baker , Thomas Fanghaenel , Terry Chong
Abstract: Systems and methods are provided for migrating a tenant of a database system from a source database instance to a destination database instance. The systems and methods include quiescing the tenant data of the tenant to be migrated from the source database instance to the destination database instance so that no new data is written to the storage of the database system associated with the tenant identifier at the source database instance, transmitting metadata of the tenant to be migrated from the source database instance to the destination database instance, and modifying, at the destination database instance, the metadata of the tenant so that the destination database instance has information to point to groupings of data in the storage for the destination database to access the tenant data.
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公开(公告)号：US20200004849A1
公开(公告)日：2020-01-02
申请号：US16024689
申请日：2018-06-29
Applicant: salesforce.com, inc.
Inventor： Gary J. Baker , Steven Tamm , Nathaniel Wyatt
Abstract: Techniques are disclosed relating to create a configuration for a database system. In some embodiments, program instructions of a change set for an application are received from a source code management (SCM) repository. In response to the receiving, a build process is performed that includes causing compilation of the received program instructions to produce program instructions executable to run the application. The build process also includes provisioning the configuration with a schema by retrieving a first set of metadata defining the schema and issuing corresponding data definition language (DDL) instructions to create the schema in the configuration. The build process includes provisioning the configuration with data by retrieving a second set of metadata defining the data and issuing corresponding data manipulation language (DML) instructions to insert the data into the configuration and storing the provisioned configuration in a repository as one of multiple configurations associated with multiple received change sets.
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公开(公告)号：US20190045007A1
公开(公告)日：2019-02-07
申请号：US15667285
申请日：2017-08-02
Applicant: salesforce.com, inc.
Inventor： Nathaniel Wyatt , Steven Raspudic , Venkateswararao Jujjuri
Abstract: Techniques are disclosed relating to fencing out a first one of a plurality of nodes configured to handle requests for data stored in a distributed storage. A database system, in various embodiments, stores a value indicating that the first node is permitted to update a catalog stored at a metadata server. In response to a determination to prevent the first node from updating the catalog and writing to the distributed storage, in various embodiments, the database system updates the value to indicate that the first node is not permitted to update the catalog and instructs the distributed storage to prevent write operations to a particular portion allocated to the first node for writing data.
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