Facilitating debugging serverless applications via graph rewriting

1. A system, comprising:

a memory that stores computer executable components;

a processor that executes computer executable components stored in the memory, wherein the computer executable components comprise:

a rewriter component that rewrites a serverless application to allow a first portion of the serverless application to be executed by a computing device and a second portion of the serverless application to be executed by a serverless computing system, wherein the first portion of the serverless application is re-routed to the computing device to facilitate a debugging session for the first portion of the serverless application that is performed by the computing device.

2. The system of claim 1 , further comprising:

an interface component of the system that receives a modified version of the first portion of the serverless application from the computing device.

3. The system of claim 2 , wherein the rewriter component combines the modified version of the first portion of the serverless application with the second portion of the serverless application.

4. The system of claim 1 , wherein the serverless computing system executes a set of processing threads associated with the second portion of the serverless application during a first time period.

5. The system of claim 4 , wherein the computing device performs the debugging session associated with the first portion of the serverless application during a second time period, and wherein the first time period and the second time period are concurrent.

6. The system of claim 1 , wherein the first portion of the serverless application is a first function in a sequence of functions, and wherein an interface component of the system re-routes the first function to the computing device.

7. The system of claim 6 , wherein the rewriter component generates a second function prior to the first function in a sequence of instructions, and wherein the rewriter component generates a third function after the first function in the sequence of instructions.

8. The system of claim 7 , wherein the rewriter component executes the second function and the third function after the first function is re-routed to the computing device.

9. The system of claim 1 , wherein an interface component of the system receives real-time data associated with the debugging session associated with the first portion of the serverless application.

10. The system of claim 9 , wherein the rewriter component executes the second portion of the serverless application based on the real-time data associated with the debugging session.

11. The system of claim 1 , wherein an interface component of the system re-routes the first portion of the serverless application to the computing device to facilitate improved performance of the serverless application.

12. The system of claim 1 , wherein a first mode of the debugging session for the serverless application is performed based on user data provided to the computing device, and wherein the user data comprises a set of actions associated with one or more processing points related to the serverless application.

13. The system of claim 1 , wherein a first mode of the debugging session for the serverless application employs a trampoline computing process that forwards an invocation signal from the computing device to a serverless computing component.

14. The system of claim 13 , wherein the invocation signal comprises a set of parameters for an invocation to invoke a programmable operator within computer code of the serverless application.

15. A computer program product for debugging a serverless application, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by processor to cause the processor to:

rewrites, by the processor, a serverless application to allow a first portion of the serverless application to be executed by a computing device and a second portion of the serverless application to be executed by a serverless computing system, wherein the first portion of the serverless application is re-routed to the computing device to facilitate a debugging session for the first portion of the serverless application that is performed by the computing device.

16. The computer program product of claim 15 , wherein the program instructions are executable by processor to further cause the processor to:

receives, by the processor, receives a modified version of the first portion of the serverless application from the computing device; and

combines the modified version of the first portion of the serverless application with the second portion of the serverless application.

17. The computer program product of claim 15 , wherein the serverless computing system executes a set of processing threads associated with the second portion of the serverless application during a first time period, wherein the computing device performs the debugging session associated with the first portion of the serverless application during a second time period, and wherein the first time period and the second time period are concurrent.

18. A computer-implemented method, comprising:

rewriting, by a device operative coupled to a processor, a serverless application to allow a first portion of the serverless application to be executed by a computing device and a second portion of the serverless application to be executed by a serverless computing system, wherein the first portion of the serverless application is re-routed to the computing device to facilitate a debugging session for the first portion of the serverless application that is performed by the computing device.

19. The computer-implemented method of claim 18 , wherein a first mode of the debugging session for the serverless application is performed based on user data provided to the computing device, and wherein the user data comprises a set of actions associated with one or more processing points related to the serverless application.

20. The computer-implemented method of claim 18 , wherein a first mode of the debugging session for the serverless application employs a trampoline computing process that forwards an invocation signal from the computing device to the serverless computing system.