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    SYSTEMS AND METHODS OF CREATION AND DELETION OF TENANTS WITHIN A DATABASE
    12.
    发明申请
    SYSTEMS AND METHODS OF CREATION AND DELETION OF TENANTS WITHIN A DATABASE 审中-公开

    公开(公告)号：US20180373741A1

    公开(公告)日：2018-12-27

    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

    IPC: G06F17/30

    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.

    FORMATION AND MANIPULATION OF TEST DATA IN A DATABASE SYSTEM
    14.
    发明申请
    FORMATION AND MANIPULATION OF TEST DATA IN A DATABASE SYSTEM 审中-公开

    公开(公告)号：US20180129585A1

    公开(公告)日：2018-05-10

    申请号：US15345914

    申请日：2016-11-08

    Applicant: salesforce.com, inc.

    Inventor： Jameison Bear Martin ,  Subho Sanjay Chatterjee ,  Patrick James Helland ,  Nathaniel Wyatt ,  Thomas Fanghaenel ,  Terry Chong

    IPC: G06F11/36 ,  G06F17/30

    CPC classification number: G06F11/3664 ,  G06F11/3696 ,  G06F17/30289 ,  G06F17/30424

    Abstract: Systems and methods are provided for creating a sandbox for an original tenant at a point in time, the original tenant having original tenant data stored in an immutable storage associated with an original tenant identifier, the original tenant data as of the sandbox creation point in time being a virtual snapshot of the original tenant data accessible by a sandbox tenant, where the sandbox tenant data can be changed without changing the original tenant data, and the original tenant data can be changed without changing the sandbox tenant data. A sandbox tenant is created by associating a sandbox tenant identifier with the virtual snapshot of the original tenant data and with sandbox tenant data created by the sandbox tenant subsequent to the sandbox creation point in time. Original tenant data is subsequently created and associated with the original tenant identifier, and is not accessible to the sandbox tenant.

    Cloud Storage Class-based Variable Cache Availability
    15.
    发明申请
    Cloud Storage Class-based Variable Cache Availability 有权

    公开(公告)号：US20220245094A1

    公开(公告)日：2022-08-04

    申请号：US17162501

    申请日：2021-01-29

    Applicant: salesforce.com, inc.

    Inventor： Venkateswararao Jujjuri ,  Nathaniel Wyatt ,  Jameison Bear Martin ,  Patrick James Helland

    IPC: G06F16/172 ,  G06F16/14 ,  G06F16/16 ,  G06F16/182

    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.

    System and method for early removal of tombstone records in database
    16.
    发明授权
    System and method for early removal of tombstone records in database 有权

    公开(公告)号：US11099771B2

    公开(公告)日：2021-08-24

    申请号：US16139717

    申请日：2018-09-24

    Applicant: salesforce.com, inc.

    Inventor： Thomas Fanghaenel ,  Terry Chong ,  Jameison Bear Martin

    IPC: G06F16/00 ,  G06F3/06 ,  G06F16/215 ,  G06F16/30

    Abstract: A method of deleting tombstones early includes setting an initial-flag in a first record in the storage system, setting a delete-flag in a second record in the storage system, selecting a set of one or more records in the storage system to be written to an extent of the storage system in a merge operation, each of the one or more records being associated with the first key, and performing the merge operation, wherein the second record is not written to the extent during the merge operation based at least in part on a determination that the first record having the initial-flag set is the oldest record in the set and the second record having the delete-flag set is the newest record in the set.

    Cache for efficient record lookups in an LSM data structure
    18.
    发明授权
    Cache for efficient record lookups in an LSM data structure 有权

    公开(公告)号：US10691693B2

    公开(公告)日：2020-06-23

    申请号：US15884131

    申请日：2018-01-30

    Applicant: salesforce.com, inc.

    Inventor： Thomas Fanghaenel ,  Jameison Bear Martin ,  Nathaniel Wyatt ,  Diego Ongaro ,  Terry Chong

    IPC: G06F12/0891 ,  G06F16/172 ,  G06F16/22 ,  G06F16/2455 ,  G06F16/84

    Abstract: Techniques are disclosed relating to maintaining a cache usable to locate data stored in a data structure. A computer system, in various embodiments, maintains a data structure having a plurality of levels that store files for a database. The files may include one or more records that each have a key and corresponding data. The computer system may also maintain a cache for the database whose entries store, for a key, an indication of a location of a corresponding record in a file of the data structure. In some embodiments, the computer system receives a request to access a particular record stored in the data structure where the request specifies a key usable to locate the particular record. The computer system may retrieve, from the cache via the key, a particular indication of a location of the particular record and may use the particular indication to access the particular record.

    SYSTEMS AND METHODS OF MANAGING MANIFEST REFRESH IN A DATABASE
    19.
    发明申请
    SYSTEMS AND METHODS OF MANAGING MANIFEST REFRESH IN A DATABASE 审中-公开

    公开(公告)号：US20200097581A1

    公开(公告)日：2020-03-26

    申请号：US16139166

    申请日：2018-09-24

    Applicant: salesforce.com, inc.

    Inventor： Terry Chong ,  Jameison Bear Martin ,  Thomas Fanghaenel

    IPC: G06F17/30 ,  G06F3/06

    Abstract: Systems and methods are provided for receiving, at a database system having a memory and at least one persistent storage device to store records, a query for a least one record, where the query uses a first version of a manifest, and where each version of the records that are stored in the at least one persistent storage device are represented by metadata that is part of the first version of the manifest. A first operation may be performed based on a scan operation. The database system may determine whether a purge of the memory has occurred after the first operation. When it is determined that the memory purge has occurred, the scan operation may be restarted from a last position of the scan operation prior to the memory purge using a second version of the manifest.

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