Service state management in a decentralized control plane of a computing system

• US 10,416,918 B2
• Filed: 06/28/2016
• Issued: 09/17/2019
• Est. Priority Date: 06/28/2016
• Status: Active Grant

• Current Assignee: Vmware LLC (Broadcom, Inc.)
• Original Assignee: VMware, Inc. (Broadcom, Inc.)
• Inventors: Chrysanthakopoulos, Georgios, Noordhuis, Pieter
• Primary Examiner(s): Bui, Hanh Thi-Minh
• Application Number:
  US15/195,521
• Publication Number:
  US 20170371906A1
• Time in Patent Office: 1,176 Days
• CPC Class Codes: G06F 16/2228 Indexing structures
• CPC Class Codes: G06F 16/23 Updating
• CPC Class Codes: G06F 16/245 Query processing
• CPC Class Codes: G06F 2209/5011 Pool
• CPC Class Codes: G06F 3/0608 Saving storage space on storage systems
• CPC Class Codes: G06F 3/064 Management of blocks
• CPC Class Codes: G06F 3/0647 Migration mechanisms
• CPC Class Codes: G06F 3/0652 Erasing, e.g. deleting, data cleaning, moving of data to a wastebasket
• CPC Class Codes: G06F 3/0659 Command handling arrangements, e.g. command buffers, queues, command scheduling
• CPC Class Codes: G06F 3/0673 Single storage device
• CPC Class Codes: G06F 8/315 Object-oriented languages
• CPC Class Codes: G06F 9/5027 the resource being a machine, e.g. CPUs, Servers, Terminals
• CPC Class Codes: G06F 9/541 via adapters, e.g. between incompatible applications
• CPC Class Codes: G06F 9/542 Event management; Broadcasting; Multicasting; Notifications
• CPC Class Codes: H04L 41/0893 Assignment of logical groups to network elements
• CPC Class Codes: H04L 41/20 Network management software packages
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04L 67/1095 : Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
• CPC Class Codes: H04L 67/51 : Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04L 67/60 : Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources admission control or resource allocation H04L47/70
• CPC Class Codes: H04L 67/63 : Routing a service request depending on the request content or context

Abstract

A method managing a state of a service of a control plane in a computer system includes: executing a service host process of the control plane on a software platform of the computer system; creating, by the service host process, a service object representing the service and a service document object representing the state of the service; modifying the service document object to update the state of the service; parsing at least a first portion of the service document to designate data to be indexed and at least a second portion of the service document to designate data to be persistently stored; and updating index data of an index stored in storage of the computer system with the data to be indexed and updating auxiliary data in the index with the data to be persistently stored.

Claims

1. A method of managing a state of a service of a control plane in a computer system, comprising:

executing a service host process of the control plane on a software platform of the computer system;

creating, by the service host process, a service object representing the service and a service document object representing the state of the service, wherein the service document object includes a plurality of service document object fields and the state of the service includes a plurality of values for the plurality of service document object fields;

modifying the service document object to update the state of the service by invoking a handler of the service object in response to a first request targeting the service, wherein the invoked handler updates one or more of the plurality of service document object fields with one or more new values of an updated state for the service in the first request, and sends a second request to an indexing service of the control plane after execution of the handler;

parsing, at the indexing service, at least a first portion of the service document object to designate data to be indexed and at least a second portion of the service document object to designate data to be persistently stored;

updating index data of an index stored in storage of the computer system with the designated data to be indexed and updating auxiliary data in the index with the designated data to be persistently stored.

2. The method of claim 1, wherein each of the plurality of service document object fields is part of the first portion of the service document, the second portion of the service document, or both the first portion and the second portion of the service document.

3. The method of claim 1, wherein the step of parsing comprises:

generating an index entry object that includes index entry object fields, the index entry object fields including attribute/value pairs, where an attribute of each attribute/value pair identifies one of the plurality of service document object fields and a value of each attribute/value pair is formed from one of the plurality of values for the plurality of service document object fields; and

wherein the step of parsing comprises providing the index entry object to backend indexing logic of the service host process, wherein the backend indexing logic performs the steps of updating the index data and updating the auxiliary data in response to the index entry object.

4. The method of claim 3, wherein each of the index entry object fields indicates whether the respective attribute/value pair represents the data to be indexed, the data to be persistently stored, or both the data to be indexed and the data to be persistently stored.

5. The method of claim 1, further comprising:

serializing the service document object into a plurality of bytes; and

designating the plurality of bytes as part of the data to be persistently stored.

6. The method of claim 1, further comprising:

receiving the first request targeting the service at the service host process;

wherein the service host process manages an indexing service of the control plane and wherein the step of creating the service document object includes;

sending a second request to the indexing service to query the index data; and

initializing the service document object from a portion of the auxiliary data returned in response to the query.

7. The method of claim 6, further comprising:

linking the service document object to the first request; and

invoking a handler of the service object in response to a first request.

8. The method of claim 1, further comprising:

receiving the first request targeting the service at the service host process;

initializing the service document object from cached data in a cache managed by the service host process;

linking the service document object to the first request; and

invoking the handler of the service object in response to the first request.

9. A computer system, comprising:

a hardware platform having a central processing unit (CPU), memory, and storage;

a software platform executing on the hardware platform, the software platform includes a service host process of a control plane, the service host process executable by the CPU to;

create a service object representing a service and a service document object representing state of the service, wherein the service document object includes a plurality of service document object fields and the state of the service includes a plurality of values for the plurality of service document object fields;

modify the service document object to update the state of the service by invoking a handler of the service object in response to a first request targeting the service, wherein the invoked handler updated one or more of the plurality of service document object fields with one or more new values of an updated state for the service in the first request, and sends a second request to an indexing service of the control plane after execution of the handler;

parse, at the indexing service, at least a first portion of the service document object to designate data to be indexed and at least a second portion of the service document object to designate data to be persistently stored; and

update index data of an index stored in storage of the computer system with the designated data to be indexed and updating auxiliary data in the index with the designated data to be persistently stored.

10. The computer system of claim 9, wherein each of the plurality of service document object fields is part of the first portion of the service document, the second portion of the service document, or both the first portion and the second portion of the service document.

11. The computer system of claim 10, wherein the service host process is executable to parse the service document by:

generating an index entry object that includes index entry object fields, the index entry object fields including attribute/value pairs, where an attribute of each attribute/value pair identifies one of the plurality of service document object fields and a value of each attribute/value pair is formed from one of the plurality of values for the plurality of service document object fields; and

wherein the step of parsing comprises providing the index entry object to backend indexing logic of the service host process, wherein the backend indexing logic performs the steps of updating the index data and updating the auxiliary data in response to the index entry object.

12. The computer system of claim 11, wherein each of the index entry object fields indicates whether the respective attribute/value pair represents the data to be indexed, the data to be persistently stored, or both the data to be indexed and the data to be persistently stored.

13. The computer system of claim 9, wherein the service host process is further executable to:

serialize the service document object into a plurality of bytes; and

designate the plurality of bytes as part of the data to be persistently stored.

14. The computer system of claim 9, wherein the service host process is further executable to:

receive the first request targeting the service at the service host process; and

manages an indexing service of the control plane;

wherein the service host process is executable to create the service document object by;

sending a second request to the indexing service to query the index data; and

initializing the service document object from a portion of the auxiliary data returned in response to the query.

15. The computer system of claim 9, wherein the service host process is further executable to link the service document to the first request.

16. A non-transitory computer readable medium comprising instructions, which when executed in a computer system, causes the computer system to carry out a method of managing a state of a service of a control plane in a computer system, comprising:

executing a service host process of the control plane on a software platform of the computer system;

creating, by the service host process, a service object representing the service and a service document object representing the state of the service, wherein the service document object includes a plurality of service document object fields and the state of the service includes a plurality of values for the plurality of service document object fields;

modifying the service document object to update the state of the service by invoking a handler of the service object in response to a first request targeting the service, wherein the invoked handler updates one or more of the plurality of service document object fields with one or more new values of an updated state for the service in the first request, and sends a second request to an indexing service of the control plane after execution of the handler;

parsing, at the indexing service, at least a first portion of the service document object to designate data to be indexed and at least a second portion of the service document object to designate data to be persistently stored; and

updating index data of an index stored in storage of the computer system with the designated data to be indexed and updating auxiliary data in the index with the designated data to be persistently stored.

17. The non-transitory computer readable medium of claim 16, wherein each of the plurality of service document object fields is part of the first portion of the service document, the second portion of the service document, or both the first portion and the second portion of the service document.