Dynamic code loading

• US 9,760,591 B2
• Filed: 05/14/2016
• Issued: 09/12/2017
• Est. Priority Date: 05/14/2015
• Status: Active Grant

• Current Assignee: Deephaven Data Labs, LLC
• Original Assignee: Walleye Software LLC
• Inventors: Caudy, Ryan, Kent, IV, David R., Zeldis, Mark, Dorfman, Nathaniel J., Wright, Charles, Teodorescu, Radu
• Primary Examiner(s): JEON, JAE UK
• Application Number:
  US15/154,998
• Publication Number:
  US 20160335062A1
• Time in Patent Office: 486 Days
• Field of Search: 717149-153
• 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 dynamic code loading.

Claims

1. A computer data system providing dynamic code loading within a query dispatch and execution architecture, the 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;

providing, from a client computer system, first dynamic code for execution by a remote query processor within a remote query server computer system, where the remote query processor includes an executable code environment established according to request parameters provided by a primary client on the client computer system and where the remote query processor is dedicated for processing one or more queries from the primary client;

making the first dynamic code available to the remote query processor;

loading the first dynamic code at the remote query processor;

accessing, at the remote query processor, one or more data system query tasks sent from the primary client;

executing, at the remote query processor, the one or more data system query tasks using an initial code deployment and the first dynamic code;

providing, from the client, second dynamic code while the executing is being performed by the remote query processor;

making the second dynamic code available to the remote query processor;

loading the second dynamic code at the remote query processor; and

continuing executing the one or more data system query tasks at the remote query processor using the initial code deployment, the first dynamic code and the second dynamic code, wherein the first dynamic code or the second dynamic code overrides a portion of the initial code deployment and the first dynamic code or the second dynamic code adds one or more functions to the initial code deployment.

2. The computer data system of claim 1, wherein the first dynamic code includes code executable by one or more virtual machines and the second dynamic code includes code executable by the one or more virtual machines.

3. The computer data system of claim 1, wherein making the first dynamic code available to the remote query processor includes persisting the first dynamic code on a server host at a URL forming part of a classpath of a virtual machine of the remote query processor.

4. The computer data system of claim 1, wherein making the first dynamic code available to the remote query processor includes persisting on a server host at a URL that will be searched by a class loader of the remote query processor at runtime.

5. The computer data system of claim 1, wherein the first dynamic code includes a data system query language portion, and

wherein the executing includes:

parsing the query language portion into computer code;

compiling the computer code into executable code configured to be executable on a virtual machine; and

executing the executable code on the virtual machine.

6. The system of claim 1, wherein the operations further include:

forming a first connection between the client and the remote query processor;

providing direct communication between the client and the remote query processor via the first connection; and

maintaining a second connection from the remote query processor to a remote query dispatcher while the remote query processor is in direct communication with the client.

7. The system of claim 1, wherein the operations further include:

establishing, at a remote query dispatcher, the executable code environment, wherein the establishing includes the remote query dispatcher allocating resources and instantiating a remote query processor runtime engine.

8. The system of claim 1, wherein the operations further comprise:

the remote query processor processing a job;

the client providing new code to the remote query processor during the processing of the job;

the remote query processor dynamically loading the new code and continuing processing the job;

the remote query processor producing from the job a result that is based at least in part on the newly loaded code.

9. A method comprising:

providing, from a client, first dynamic code for execution by a remote query processor, where the remote query processor includes an executable code environment established according to request parameters provided by the client and where the remote query processor is dedicated for processing one or more queries from the client;

making the first dynamic code available to the remote query processor;

loading the first dynamic code at the remote query processor;

receiving, at the remote query processor, one or more data system query tasks sent from the client; and

executing, at the remote query processor, the one or more data system query tasks using an initial code deployment and the first dynamic code;

providing, from the client, second dynamic code while the executing is being performed by the remote query processor;

making the second dynamic code available to the remote query processor;

loading the second dynamic code at the remote query processor; and

continuing executing the one or more data system query tasks at the remote query processor using the initial code deployment, the first dynamic code and the second dynamic code, wherein the first dynamic code or the second dynamic code overrides a portion of the initial code deployment and the first dynamic code or the second dynamic code adds one or more functions to the initial code deployment.

10. The method of claim 9, wherein the first code includes code executable by a virtual machine and the second code includes code executable by the virtual machine.

11. The method of claim 9, wherein making the first code available to the remote query processor includes persisting the first code on a server host at a URL forming part of a classpath of a virtual machine of the remote query processor.

12. The method of claim 9, wherein making the first code available to the remote query processor includes persisting the first code on a server host at a URL that will be searched by a class loader of the remote query processor at runtime.

13. The method of claim 9, wherein the second code includes a data system query language portion, and

wherein the executing includes:

parsing the query language portion into computer code;

compiling the computer code into executable code configured to be executable on a virtual machine; and

executing the executable code on the virtual machine.

14. The method of claim 9, further comprising:

forming a first connection between the client and the remote query processor;

providing direct communication between the client and the remote query processor via the first connection; and

maintaining a second connection from the remote query processor to a remote query dispatcher while the remote query processor is in direct communication with the client.

15. The method of claim 9, further comprising:

establishing, at a remote query dispatcher, the executable code environment, wherein the establishing includes the remote query dispatcher allocating resources and instantiating a remote query processor runtime engine.

16. The method of claim 9, further comprising:

the remote query processor processing a job;

the client providing new code to the remote query processor during the processing of the job;

the remote query processor dynamically loading the new code and continuing processing the job;

the remote query processor producing from the job a result that is based at least in part on the newly loaded code.

17. A non-transitory computer readable medium storing software instructions, executed by a processor, to:

provide, from a client computer system, first dynamic code for execution by a remote query processor within a remote query server computer system, where the remote query processor includes an executable code environment established according to request parameters provided by a primary client on the client computer system and where the remote query processor is dedicated for processing one or more queries from the primary client;

make the first dynamic code available to the remote query processor;

load the first dynamic code at the remote query processor;

access, at the remote query processor, one or more data system query tasks sent from the primary client;

execute, at the remote query processor, the one or more data system query tasks using an initial code deployment and the first dynamic code;

provide, from a client, second dynamic code before or during execution of the first dynamic code being performed by a remote query processor;

make the second dynamic code available to the remote query processor;

load the second dynamic code at the remote query processor; and

continue executing one or more data system query tasks at the remote query processor using the initial code deployment, the first dynamic code and the second dynamic code;

wherein the first dynamic code or the second dynamic code overrides a portion of the initial code deployment and the first dynamic code or the second dynamic code adds one or more functions to the initial code deployment.

18. The non-transitory computer readable medium of claim 17, wherein the first code includes code executable by a virtual machine and the second code includes code executable by the virtual machine.

19. The non-transitory computer readable medium of claim 17, wherein the second code includes a data system query language portion, and

wherein the executing includes:

parsing the query language portion into computer code;

compiling the computer code into executable code configured to be executable on a virtual machine; and

executing the executable code on the virtual machine.

20. The non-transitory computer readable medium of claim 17, further comprising:

forming a first connection between the client and the remote query processor;

providing direct communication between the client and the remote query processor via the first connection; and

maintaining a second connection from the remote query processor to a remote query dispatcher while the remote query processor is in direct communication with the client.

21. The non-transitory computer readable medium of claim 17, further comprising:

establishing, at a remote query dispatcher, the executable code environment, wherein the establishing includes the remote query dispatcher allocating resources and instantiating a remote query processor runtime engine.