Methods and systems for debugging bytecode in an on-demand service environment

• US 9,189,367 B2
• Filed: 09/15/2010
• Issued: 11/17/2015
• Est. Priority Date: 04/20/2010
• Status: Active Grant

• Current Assignee: Salesforce.com, Inc.
• Original Assignee: Salesforce.com, Inc.
• Inventors: Matthiesen, Taggart C, Unger, Richard, Wisnovsky, Peter S.
• Primary Examiner(s): Zhen, Li B
• Assistant Examiner(s): CHEN, SEN THONG
• Application Number:
  US12/883,066
• Publication Number:
  US 20110258612A1
• Time in Patent Office: 1,889 Days
• Field of Search: 717/128
• US Class Current: 1/1
• CPC Class Codes: G06F 11/3636 by tracing the execution of the program
• CPC Class Codes: G06F 11/3664 Environments for testing or debugging software

Abstract

Described herein are means for debugging byte code in an on-demand service environment system including a system for simulating execution debug in a multi-tenant database environment. Such means may include: receiving a request at a web-server of the system, determining one or more trace preferences are active for the request, sending the request to a logging framework communicatively interfaced to the multi-tenant database implementation, processing the request via the logging framework, and capturing at least a portion of the execution data emitted responsive to execution of the plurality of events for use in simulating execution debug of the events. Other related embodiments are additionally described.

Claims

1. A method in a host organization having at least a processor and a memory therein, wherein the method comprises:

receiving a request at a web-server of the host organization, the request specifying one or more services to access a multi-tenant database of the host organization, the multi-tenant database operating within a production environment;

determining, via a trace flag analyzer, one or more trace preferences for the request, wherein the trace flag analyzer determines the one or more trace preferences are active for the request based on a client organization identifier (OrgID) associated with the request;

sending the request to a logging framework communicatively interfaced to the multi-tenant database, wherein the logging framework comprises an encapsulated library of services to access the multi-tenant database, the encapsulated library of services including the one or more services;

servicing the request via the logging framework while the multi-tenant database concurrently services requests each from a different respective one of a plurality of distinct customer organizations, wherein servicing of the request results in each individual service of the one or more services emitting respective execution data describing execution of each event by the individual service to service the request, wherein the servicing of the request generates the execution data without causing execution of the encapsulated library of services to be stopped or halted for any of the plurality of distinct customer organizations; and

tracing an execution of code by the one or more services to service the request, including tracing according to the OrgID associated with the request, the OrgID corresponding to one of the plurality of distinct customer organizations, wherein tracing the execution of code includes a listener receiving the execution data emitted by the one or more services and selectively sending only a portion of the execution data to a persistent storage based on the one or more trace preferences, wherein, after servicing of the request is completed, an execution debug simulation is performed with the portion of execution data sent to the persistent storage.

2. The method of claim 1, wherein servicing the request via the logging framework comprises servicing the request via one or more work thread processors, wherein the one or more work thread processors execute a plurality of events against the multi-tenant database, based on the request, via the logging framework.

3. The method of claim 1, further comprising:

receiving a request to simulate execution debug of a plurality of events processed via the logging framework to service the request.

4. The method of claim 3, further comprising:

simulating the execution of the plurality of events in response to the request by;

accessing the portion of the execution data emitted by the one or more services responsive to the execution of the plurality of events; and

simulating execution of the plurality of events via a graphical user interface communicatively coupled with an execution debug simulator of the system, wherein simulating execution of the plurality of events comprises at least presenting output corresponding to execution of one or more of the plurality of events based on the portion of execution data accessed without re-executing any of the plurality of events.

5. The method of claim 1, wherein selectively sending only the portion of the execution data to the persistent storage comprises flushing the portion of the execution data from a high-data-rate RAM to a non-volatile storage device, wherein the non-volatile storage device is selected from the group comprising:

persistent storage on a hard-disk drive within the host organization having space allocated to a customer organization associated with the request;

persistent storage within the multi-tenant database in an area allocated to a customer organization associated with the request; and

persistent storage on a non-volatile storage device communicatively interfaced with an end-user client machine having originated the request, wherein the end-user client machine is remote and distinct from the system of the host organization.

6. The method of claim 1:

wherein the OrgID corresponds to one of the plurality of distinct customer organizations remote from the host organization without regard to the end-user originating the request.

7. The method of claim 1, further comprising:

performing a look-up operation via the web-server of the one or more trace flags for the request received based on the OrgID associated with the request;

encoding, via the web-server, the one or more trace flags into the request based on the lookup operation; and

forwarding the request having the one or more trace flags encoded therein to one or more work thread processors to process the request in coordination with the logging framework.

12. The method of claim 1, further comprising tracking each executed line of code associated with servicing the request according to a customer identifier (UserID) in addition to OrgID, the UserID identifying which authorized user of the multi-tenant database the request is being executed for, on behalf of, or at the request of said UserID which corresponds to an end-user originating the request from within one of the plurality of distinct customer organizations remote from the host organization.

13. The method of claim 1, wherein the execution data describes one or more of:

a line of code that was executed servicing the request, a result code/error code of the executed line of code, contents of any variable accessed, instantiated, written to, or read from by the executed line of code, a customer identifier (UserID) associated with the executed line of code, the OrgID associated with the executed line of code, and process identifiers/thread identifiers associated with the line of code executed.

8. A non-transitory computer readable storage medium having instructions stored thereon that, when executed by a processor of a host organization, the instructions cause the host organization to perform operations comprising:

receiving a request at a web-server of the host organization, the request specifying one or more services to access a multi-tenant database of the host organization, the multi-tenant database operating within a production environment;

determining, via a trace flag analyzer, one or more trace preferences for the request, wherein the trace flag analyzer determines the one or more trace preferences are active for the request based on a client organization identifier (OrgID) associated with the request;

sending the request to a logging framework communicatively interfaced to the multi-tenant database, wherein the logging framework comprises an encapsulated library of services to access the multi-tenant database, the encapsulated library of services including the one or more services;

servicing the request via the logging framework while the multi-tenant database concurrently services requests each from a different respective one of a plurality of distinct customer organizations, wherein servicing of the request results in each individual service of the one or more services emitting respective execution data describing execution of each event by the individual service to service the request, wherein the servicing of the request generates the execution data without causing execution of the encapsulated library of services to be stopped or halted for any of the plurality of distinct customer organizations; and

tracing an execution of code by the one or more services to service the request, including tracing according to the OrgID associated with the request, the OrgID corresponding to one of the plurality of distinct customer organizations, wherein tracing the execution of code includes a listener receiving the execution data emitted by the one or more services and selectively sending only a portion of the execution data to a persistent storage based on the one or more trace preferences, wherein, after servicing of the request is completed, an execution debug simulation is performed with the portion of execution data sent to the persistent storage.

9. The non-transitory computer readable storage medium of claim 8, wherein the method further comprises receiving a request to simulate execution debug of a plurality of events processed via the logging framework to service the request.

10. The non-transitory computer readable storage medium of claim 9 wherein simulating the execution of the plurality in response to the request comprises:

accessing the portion of the execution data emitted by the one or more services responsive to the execution of the plurality of events; and

simulating execution of the plurality of events via a graphical user interface communicatively coupled with an execution debug simulator of the system, wherein simulating execution of the plurality of events comprises at least presenting output corresponding to execution of one or more of the plurality of events based on the portion of execution data accessed without re-executing any of the plurality of events.

11. The non-transitory computer readable storage medium of claim 8, wherein selectively sending only the portion of the execution data to the persistent storage comprises flushing the captured portion of the execution data from a high-data-rate Random Access Memory (RAM) of the system to a separate and distinct non-volatile storage device, wherein the non-volatile storage device is selected from the group comprising:

persistent storage on a hard-disk drive within the host organization having space allocated to a customer organization associated with the request;

persistent storage within the multi-tenant database in an area allocated to a customer organization associated with the request; and

persistent storage on a non-volatile storage device communicatively interfaced with an end-user client machine having originated the request, wherein the end-user client machine is remote and distinct from the system of the host organization.

14. A system comprising:

a processor;

a memory;

a web-server to receive a request specifying one or more services to access a multi-tenant database operating within a production environment and servicing a plurality of distinct customer organizations'"'"' service requests concurrently;

a trace flag analyzer to determine one or more trace preferences for the request, wherein the trace flag analyzer determines the one or more trace preferences are active for the request based on a client organization identifier (OrgID) associated with the request;

a logging framework comprising an encapsulated library of services communicatively interfaced to the multi-tenant database to process the request, the encapsulated library of services including the one or more services to service the request while the multi-tenant database concurrently services requests each from a different respective one of a plurality of distinct customer organizations, wherein the one or more services to service the request results in each individual service of the one or more services emitting respective execution data describing execution of each event by the individual service to service the request, wherein the servicing of the request generates the execution data without causing execution of the encapsulated library of services to be stopped or halted for any of the plurality of distinct customer organizations; and

a listener interfaced to the logging framework to trace an execution of code by the one or more services to service the request, including the listener to trace according to the OrgID associated with the request, the OrgID corresponding to one of the plurality of distinct customer organizations, wherein the listener to trace the execution of code includes the listener to receive the execution data emitted by the one or more services and to selectively send only a portion of the execution data to a persistent storage based on the one or more trace preferences, wherein, after the request is serviced, an execution debug simulation is performed with the portion of execution data sent to the persistent storage.

15. The system of claim 14, further comprising:

an execution debug simulator to;

access the portion of the execution data emitted by the one or more services responsive to the execution of a plurality of events to service the request; and

simulate execution of the plurality of events via a graphical user interface communicatively interfaced with the execution debug simulator, wherein simulating execution of the plurality of events comprises at least presenting output corresponding to execution of one or more of the plurality of events based on the portion of execution data accessed and without re-executing any of the plurality of events.

16. The system of claim 14:

wherein the listener to selectively send only the portion of the execution data to the persistent storage comprises the listener to flush the portion of the execution data from a a high-data-rate Random Access Memory (RAM) to a non-volatile storage device and wherein the high-data-rate RAM caches the portion of the execution data emitted by the one or more services responsive to execution of a plurality of events until a flush command is received; and

wherein the non-volatile storage device is selected from the group comprising;

persistent storage on a hard-disk drive within the host organization having space allocated to a customer organization associated with the request,

persistent storage within the multi-tenant database implementation in an area allocated to a customer organization associated with the request, and

persistent storage on a non-volatile storage device communicatively interfaced with an end-user client machine having originated the request, wherein the end-user client machine is remote and distinct from the system of the host organization.

17. The system of claim 14, wherein the trace flag analyzer to determine one or more trace preferences comprises the trace flag analyzer to determine one or more trace preferences are active based on a user identifier (UserID) or the OrgID associated with the request.

18. The system of claim 17, wherein the trace flag analyzer to determine the one or more trace preferences are active based on a UserID or the OrgID associated with the request comprises the trace flag analyzer to perform one of the following operations:

compare the UserID embodied within the request against a plurality of trace flags cached in a memory of the system;

read the one or more trace preferences for the UserID embodied within the request from the multi-tenant database based on the UserID;

read the one or more trace preferences from the request received;

or

correspond the UserID to the OrgID associated with the request and implement the one or more trace preferences specified for the OrgID.

19. The system of claim 14, wherein the web server provides a web-based interface to a remotely located end-user client machine originating the request, wherein the request comprises a request for services from the multi-tenant database implementation operating within the host organization.

20. The system of claim 19, further comprising:

a webserver, wherein the web server;

receives a request for services from the remotely located end-user client machine;

encodes one or more trace flags into the request based on the one or more trace preferences corresponding to a user identifier (UserID) or the OrgID associated with the request; and

forwards the request having the one or more trace flags encoded therein to the one or more work thread processors to process the request.