Importation, presentation, and persistent storage of data

• US 10,346,394 B2
• Filed: 07/19/2017
• Issued: 07/09/2019
• Est. Priority Date: 05/14/2015
• Status: Active Grant

• Current Assignee: Deephaven Data Labs, LLC
• Original Assignee: Deephaven Data Labs, LLC
• Inventors: Caudy, Ryan, Kent, IV, David R., Wright, Charles, Teodorescu, Radu
• Primary Examiner(s): Wilson, Yolanda L
• Application Number:
  US15/654,461
• Publication Number:
  US 20170316046A1
• Time in Patent Office: 720 Days
• Field of Search: None
• CPC Class Codes: G06F 11/1451 by selection of backup contents
• CPC Class Codes: G06F 11/1464 for networked environments
• CPC Class Codes: G06F 11/1469 Backup restoration techniques
• CPC Class Codes: G06F 12/0261 using reference counting
• CPC Class Codes: G06F 12/084 with a shared cache
• CPC Class Codes: G06F 12/1483 using an access-table, e.g. matrix or list
• CPC Class Codes: G06F 15/17331 Distributed shared memory [DSM], e.g. remote direct memory access [RDMA]
• CPC Class Codes: G06F 16/113 Details of archiving lifecycle management in storage systems G06F3/0649; backup systems G06F11/1446
• CPC Class Codes: G06F 16/144 Query formulation
• CPC Class Codes: G06F 16/162 Delete operations erasing in storage systems G06F3/0652
• CPC Class Codes: G06F 16/215 Improving data quality; Data cleansing, e.g. de-duplication, removing invalid entries or correcting typographical errors
• CPC Class Codes: G06F 16/22 Indexing; Data structures therefor; Storage structures
• CPC Class Codes: G06F 16/221 Column-oriented storage; Management thereof
• CPC Class Codes: G06F 16/2228 Indexing structures
• CPC Class Codes: G06F 16/2237 Vectors, bitmaps or matrices
• CPC Class Codes: G06F 16/2246 Trees, e.g. B+trees
• CPC Class Codes: G06F 16/2255 Hash tables
• CPC Class Codes: G06F 16/2264 Multidimensional index structures
• CPC Class Codes: G06F 16/2272 Management thereof
• CPC Class Codes: G06F 16/2282 Tablespace storage structures; Management thereof
• CPC Class Codes: G06F 16/2291 : User-Defined Types; Storage management thereof
• CPC Class Codes: G06F 16/23 : Updating
• CPC Class Codes: G06F 16/2308 : Concurrency control transaction processing G06F9/466
• CPC Class Codes: G06F 16/2358 : Change logging, detection, and notification replication G06F16/27
• CPC Class Codes: G06F 16/2365 : Ensuring data consistency and integrity
• CPC Class Codes: G06F 16/2372 : Updates performed during offline database operations
• CPC Class Codes: G06F 16/2379 : Updates performed during online database operations; commit processing
• CPC Class Codes: G06F 16/242 : Query formulation
• CPC Class Codes: G06F 16/2428 : Query predicate definition using graphical user interfaces, including menus and forms G06F16/2423 takes precedence
• CPC Class Codes: G06F 16/245 : Query processing
• CPC Class Codes: G06F 16/2453 : Query optimisation
• CPC Class Codes: G06F 16/24534 : Query rewriting; Transformation
• CPC Class Codes: G06F 16/24535 : of sub-queries or views
• CPC Class Codes: G06F 16/24537 : of operators
• CPC Class Codes: G06F 16/24539 : using cached or materialised query results
• CPC Class Codes: G06F 16/2455 : Query execution
• CPC Class Codes: G06F 16/24553 : of query operations
• CPC Class Codes: G06F 16/2456 : Join operations
• CPC Class Codes: G06F 16/24561 : Intermediate data storage techniques for performance improvement
• CPC Class Codes: G06F 16/2457 : with adaptation to user needs
• CPC Class Codes: G06F 16/24575 : using context
• CPC Class Codes: G06F 16/248 : Presentation of query results
• CPC Class Codes: G06F 16/254 : Extract, transform and load [ETL] procedures, e.g. ETL data flows in data warehouses
• CPC Class Codes: G06F 16/27 : Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
• CPC Class Codes: G06F 16/278 : Data partitioning, e.g. horizontal or vertical partitioning
• CPC Class Codes: G06F 16/285 : Clustering or classification
• CPC Class Codes: G06F 16/9024 : Graphs; Linked lists G06F16/9027 takes precedence
• CPC Class Codes: G06F 16/907 : Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
• CPC Class Codes: G06F 16/951 : Indexing; Web crawling techniques
• CPC Class Codes: G06F 16/9535 : Search customisation based on user profiles and personalisation
• CPC Class Codes: G06F 16/9538 : Presentation of query results
• CPC Class Codes: G06F 16/9566 : URL specific, e.g. using aliases, detecting broken or misspelled links
• CPC Class Codes: G06F 16/9574 : of access to content, e.g. by caching
• CPC Class Codes: G06F 17/40 : Data acquisition and logging for input to computer G06F3/00
• CPC Class Codes: G06F 21/00 : Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
• CPC Class Codes: G06F 21/6209 : to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
• CPC Class Codes: G06F 2201/805 : Real-time
• CPC Class Codes: G06F 2201/84 : Using snapshots, i.e. a logical point-in-time copy of the data
• CPC Class Codes: G06F 2212/1052 : Security improvement
• CPC Class Codes: G06F 2212/154 : Networked environment
• CPC Class Codes: G06F 2212/163 : Server or database system
• CPC Class Codes: G06F 2212/60 : Details of cache memory
• CPC Class Codes: G06F 3/0481 : based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
• CPC Class Codes: G06F 3/0482 : Interaction with lists of selectable items, e.g. menus
• CPC Class Codes: G06F 3/0483 : Interaction with page-structured environments, e.g. book metaphor
• CPC Class Codes: G06F 3/04847 : Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
• CPC Class Codes: G06F 3/0485 : Scrolling or panning
• CPC Class Codes: G06F 3/04895 : Guidance during keyboard input operation, e.g. prompting
• CPC Class Codes: G06F 3/0605 : by facilitating the interaction with a user or administrator
• CPC Class Codes: G06F 3/0656 : Data buffering arrangements
• CPC Class Codes: G06F 3/067 : Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
• CPC Class Codes: G06F 40/117 : Tagging; Marking up details of markup languages G06F40/143; Designating a block; Setting of attributes style sheets, e.g. eXtensible Stylesheet Language Transformation [XSLT], G06F40/154
• CPC Class Codes: G06F 40/134 : Hyperlinking
• CPC Class Codes: G06F 40/166 : Editing, e.g. inserting or deleting
• CPC Class Codes: G06F 40/174 : Form filling; Merging
• CPC Class Codes: G06F 40/177 : of tables; using ruled lines
• CPC Class Codes: G06F 40/18 : of spreadsheets form-filling G06F40/174
• CPC Class Codes: G06F 40/183 : Tabulation, i.e. one-dimensional positioning
• CPC Class Codes: G06F 40/216 : using statistical methods
• CPC Class Codes: G06F 40/274 : Converting codes to words; Guess-ahead of partial word inputs
• CPC Class Codes: G06F 8/30 : Creation or generation of source code
• CPC Class Codes: G06F 8/41 : Compilation
• CPC Class Codes: G06F 8/427 : Parsing
• CPC Class Codes: G06F 8/60 : Software deployment
• CPC Class Codes: G06Q 40/04 : Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
• CPC Class Codes: H04L 12/18 : for broadcast or conference , e.g. multicast
• CPC Class Codes: H04L 51/046 : Interoperability with other network applications or services
• CPC Class Codes: H04L 51/212 : using filtering or selective blocking
• CPC Class Codes: H04L 61/5069 : for group communication, multicast communication or broadcast communication
• CPC Class Codes: H04L 63/101 : Access control lists [ACL]
• CPC Class Codes: H04L 63/102 : Entity profiles
• CPC Class Codes: H04L 67/01 : Protocols
• CPC Class Codes: H04L 67/1001 : for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/141 : Setup of application sessions admission control or resource allocation in data switching networks H04L47/70
• CPC Class Codes: H04L 67/34 : involving the movement of software or configuration parameters network booting or remote initial program loading [RIPL] G06F9/4416
• CPC Class Codes: H04L 67/56 : Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 67/566 : Grouping or aggregating service requests, e.g. for unified processing
• CPC Class Codes: H04L 67/568 : Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 67/5681 : Pre-fetching or pre-delivering data based on network characteristics
• CPC Class Codes: H04L 69/16 : Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]

Abstract

Described are methods, systems and computer readable media for the importation, presentation, and persistent storage of data.

Claims

1. A computer data system comprising:

one or more processors;

computer readable storage coupled to the one or more processors, the computer readable storage having stored thereon instructions that, when executed by the one or more processors, cause the one or more processors to perform operations including;

starting with a processor a log tailer process for reading data from one or more log files and transmitting the data read from the one or more log files;

the log tailer process reading the data from the one or more log files;

the log tailer process transmitting the data to one or more data import servers, the one or more data import servers being separate from the log tailer process;

at the one or more data import servers, writing the data to one or more columns of an associated table location in cache memory buffers;

confirming, at the one or more data import servers, a current number of rows of data written to the cache memory buffers;

synchronizing, at the one or more data import servers, the column data from the cache memory buffers into a persistent table data store;

updating, at the one or more data import servers, table location metadata;

writing formatted data into the one or more log files by applying schema-specified, generated code to format the data;

parsing at least a portion of the formatted data with a listener generated from a schema;

generating the schema-specified, generated code used to format the data, wherein the table location metadata comprises a version identifier of another schema used to generate the schema-specified, generated code;

and

writing a check point for persisted data from the persistent table data store for use in resuming import after a system fault.

2. The computer data system of claim 1, the operations further including:

advertising an existence of imported table location data available in the cache memory buffers.

3. The computer data system of claim 2, wherein the advertising is made without waiting for the check point to be written.

4. The computer data system of claim 1, wherein writing a check point for the cache memory buffers includes at least one of:

a table location size in rows; and

a log file and a byte-offset to resume from a table location next row.

5. The computer data system of claim 1, the operations further including:

writing state associated with each table location imported from one or more application process logs.

6. The computer data system of claim 5, wherein the processor applies the state to validate data written to the persistent table data store.

7. The computer data system of claim 6, wherein the state includes information on connections subscribed to advertisements from the one or more data import servers about one or more of existence of new locations of tables, size of individual table locations, schema-specific data used for the validation, actual column file data or the table location metadata.

8. The computer data system of claim 1, wherein the one or more log files are row-oriented.

9. The system of claim 1, wherein the one or more data import servers are remote from the log tailer process.

10. A method for importing and presenting data for computer system use, the method comprising:

Starting, with a processor, a log tailer process for reading data from one or more log files and transmitting the data read from the one or more log files;

the log tailer process reading the data from the one or more log files;

the log tailer process transmitting the data to one or more data import servers, the one or more data import servers being separate from the log tailer process;

at the one or more data import servers, writing the data to one or more columns of an associated table location in cache memory buffers;

confirming, at the one or more data import servers, a current number of rows of data written to the cache memory buffers;

writing formatted data into the one or more log files by applying schema-specified, generated code to format the data;

parsing at least a portion of the formatted data with a listener generated from a schema;

updating, at the one or more data import servers, table location metadata;

generating the schema-specified, generated code used to format the data, wherein the table location metadata comprises a version identifier of another schema used to generate the schema-specified, generated code;

and

writing a check point for persisted data from a persistent table data store for use in resuming import after a system fault.

11. The method of claim 10, further comprising:

advertising an existence of imported table location data available in the cache memory buffers.

12. The method of claim 11, wherein the advertising is made without waiting for the check point to be written.

13. The method of claim 10, wherein writing a check point for the cache memory buffers includes at least one of:

a table location size in rows; and

a log file and a byte-offset to resume from for thea table location next row.

14. The method of claim 10, further comprising:

writing state associated with each table location imported from one or more application process logs.

15. The method of claim 14, further comprising:

synchronizing, at the one or more data import servers, the column data from the cache memory buffers into a persistent table data store,

wherein the processor applies the state to validate data written to the persistent table data store.

16. The method of claim 15, wherein the state includes information on connections subscribed to advertisements from the one or more data import servers about one or more of existence of new locations of tables, size of individual table locations, schema-specific data used for the validation, actual column file data or the table location metadata.

17. The method of claim 10, wherein the one or more log files are row-oriented.

18. The method of claim 10, wherein the one or more data import servers are remote from the log tailer process.

19. A nontransitory computer readable medium having stored thereon software instructions that, when executed by one or more processors, cause the one or more processors to perform operations including:

starting with a processor a log tailer process for reading data from one or more log files and transmitting the data read from the one or more log files;

the log tailer process reading the data from the one or more log files;

the log tailer process transmitting the data to one or more data import servers, the one or more data import servers being separate from the log tailer process;

at the one or more data import servers, writing the data to one or more columns of an associated table location in cache memory buffers;

synchronizing, at the one or more data import servers, the column data from the cache memory buffers into a persistent table data store;

writing formatted data into the one or more log files by applying schema-specified, generated code to format the data;

parsing at least a portion of the formatted data with a listener generated from a schema;

updating, at the one or more data import servers, table location metadata;

generating the schema-specified, generated code used to format the data, wherein the table location metadata comprises a version identifier of another schema used to generate the schema-specified, generated code;

and

writing a check point for persisted data from the persistent table data store for use in resuming import after a system fault.

20. The nontransitory computer readable medium of claim 19, the operations further including:

advertising an existence of imported table location data available in the cache memory buffers.

22. The nontransitory computer readable medium of claim 19, wherein writing a check point for the cache memory buffers includes at least one of:

a table location size in rows; and

a log file and a byte-offset to resume from a table location next row.

23. The nontransitory computer readable medium of claim 19, the operations further including:

writing state associated with each table location imported from one or more application process logs.

24. The nontransitory computer readable medium of claim 23, wherein the processor applies the state to validate data written to the persistent table data store.

25. The nontransitory computer readable medium of claim 19, wherein the one or more log files are row-oriented.

26. The nontransitory computer readable medium of claim 19, wherein the one or more data import servers are remote from the log tailer process.

21. The nontransitory computer readable medium of 20, wherein the advertising is made without waiting for the check point to be written.

27. A computer data system comprising:

one or more processors;

computer readable storage coupled to the one or more processors, the computer readable storage having stored thereon instructions that, when executed by the one or more processors, cause the one or more processors to perform operations including;

starting a log tailer process for reading data from one or more log files and transmitting data read from log files;

the log tailer process reading data from the one or more log files;

the log tailer process transmitting the data to one or more data import servers;

at the one or more data import servers, writing the data to one or more columns of an associated table location in cache memory buffers;

confirming, at the one or more data import servers, a current number of rows of data written to the cache memory buffers;

synchronizing, at the one or more data import servers, the column data from the cache memory buffers into a persistent table data store;

updating, at the one or more data import servers, table location metadata;

writing a check point for the persisted data for use in resuming import after a system fault;

generating a listener based on a schema;

generating formatting code based on the same schema;

receiving data;

formatting the received data by executing the generated formatting code to format the data for output to the one or more log files;

writing the formatted data to the one or more log files; and

parsing, with the listener, at least a portion of the formatted data read from the one or more log files.

28. A method for importing and presenting data for computer system use, the method comprising:

starting with a processor a log tailer process for reading data from one or more log files and transmitting data read from log files;

the log tailer process reading data from the one or more log files;

the log tailer process transmitting the data to one or more data import servers;

at the one or more data import servers, writing the data to one or more columns of an associated table location in cache memory buffers;

confirming, at the one or more data import servers, a current number of rows of data written to the cache memory buffers;

writing a check point for the persisted data for use in resuming import after a system fault;

generating a listener based on a schema;

generating formatting code based on the same schema;

receiving data;

formatting the received data by executing the generated formatting code to format the data for output to the one or more log files;

writing the formatted data to the one or more log files; and

parsing, with the listener, at least a portion of the formatted data read from the one or more log files.

29. A nontransitory computer readable medium having stored thereon software instructions that, when executed by one or more processors, cause the one or more processors to perform operations including:

starting a log tailer process for reading data from one or more log files and transmitting data read from log files;

the log tailer process reading data from the one or more log files;

the log taller process transmitting the data to one or more data import servers;

at the one or more data import servers, writing the data to one or more columns of an associated table location in cache memory buffers;

synchronizing, at the one or more data import servers, the column data from the cache memory buffers into a persistent table data store;

writing a check point for the persisted data for use in resuming import after a system fault

generating a listener based on a schema;

generating formatting code based on the same schema;

receiving data;

formatting the received data by executing the generated formatting code to format the data for output to the one or more log files;

writing the formatted data to the one or more log files; and

parsing, with the listener, at least a portion of the formatted data read from the one or more log files.