Dynamic administration framework for server systems

• US 20040019662A1
• Filed: 07/25/2002
• Published: 01/29/2004
• Est. Priority Date: 07/25/2002
• Status: Active Grant

• Current Assignee: Oracle America, Inc. (Oracle Corporation)
• Original Assignee: Sun Microsystems Incorporated (Oracle Corporation)
• Inventors: Islam, Akm N., Viswanath, Sridatta, Hulton, Michael C., Champenois, Ludovic J., Kaul, Jeetendra
• Granted Patent: US 7,206,827 B2
• Time in Patent Office: Days
• US Class Current: 709/220
• CPC Class Codes: G06F 9/505 considering the load

Abstract

A dynamic administration framework for server systems. A generation mechanism may generate one or more components of the administration framework from meta-information describing persistently stored configuration information. Components providing an in-memory representation of configuration information and components representing business logic of the server may be generated. A user interface may be generated which may be used to administer the generated components. A configuration API may be provided that provides a transparent interface to the persistent store, abstracting storage format and location from clients of the configuration API. A generated administration framework may be compiled with application server or system-specific components. The compiled system may then be used at runtime. One embodiment may include an event notification mechanism that may allow changes in configuration data to be propagated to one or more servers. Using this event notification mechanism, the listening servers may not need to access the persistent store for updates.

Claims

1. A system, comprising:

a plurality of servers;

a data store comprising a persistent store of configuration information for the plurality of servers, wherein the persistent store is formatted in accordance with a data storage format;

wherein one of the plurality of servers comprises;

an in-memory representation of the configuration information formatted in accordance with an in-memory data format;

a plurality of components configured to access the in-memory representation of the configuration information transparent of the data storage format to perform server configuration tasks; and

a configuration Application Programming Interface (API) configured to store the in-memory representation of the configuration information to the persistent store in accordance with the data storage format of the persistent store.

2. The system as recited in claim 1, wherein the configuration API is further configured to read the configuration information from the persistent store and write the configuration information to the in-memory representation of the configuration information.

3. The system as recited in claim 1, wherein the plurality of components is configured to access the in-memory representation of the configuration information transparent to a location of the persistent store.

4. The system as recited in claim 1, wherein the plurality of components is configured to access the in-memory representation of the configuration information transparent to the data storage format of the persistent store.

5. The system as recited in claim 1, wherein the server further comprises a generation mechanism configured to generate the in-memory representation of the configuration information from meta-information describing the configuration information of the persistent store.

6. The system as recited in claim 1, wherein the server further comprises a generation mechanism configured to generate at least a portion of the plurality of components from meta-information describing the configuration information of the persistent store.

7. The system as recited in claim 1, wherein the server further comprises a user interface configured to access the in-memory representation of the configuration information to perform the server configuration tasks in response to user input.

8. The system as recited in claim 7, wherein the server further comprises a generation mechanism configured to generate the user interface from meta-information describing the configuration information of the persistent store.

9. The system as recited in claim 1, wherein the configuration API is further configured to store the in-memory representation of the configuration information to the persistent store in accordance with a different data storage format in response to a change of the data storage format of the persistent store to the different data storage format.

10. The system as recited in claim 1, wherein one or more of the plurality of components are each configured to generate an access of the configuration information on the persistent store via the configuration API, wherein the configuration API is configured to perform the access in accordance with the data storage format.

11. The system as recited in claim 1, wherein the server is further configured to provide an instance of the in-memory representation of the configuration information to another one of the plurality of servers, wherein the other server is configured to access the server information from the instance of the in-memory representation of the configuration information.

12. The system as recited in claim 1, wherein the system is configured to generate an instance of the in-memory representation of the configuration information and an instance of the plurality of components on one or more others of the plurality of servers, wherein each instance of the plurality of components is configured to access the corresponding instance of the in-memory representation of the configuration information to perform configuration tasks of the particular server.

13. The system as recited in claim 1, wherein one or more others of the plurality of servers each comprise an instance of the in-memory representation of the configuration information, and wherein the server is further configured to:

modify the in-memory representation of the configuration information; and

send a notification of said modification of the in-memory representation of the configuration information to each of the one or more others of the plurality of servers comprising an instance of the in-memory representation of the configuration information to update the instances of the in-memory representation of the configuration information in response to said notification.

14. The system as recited in claim 1, wherein one or more of the plurality of components each comprise:

one or more program methods each configured to perform business logic of the server; and

one or more access methods for accessing one or more elements of the in-memory representation of the configuration information.

15. The system as recited in claim 1, wherein the server further comprises a plurality of configuration components comprising the in-memory representation of the configuration information, wherein the configuration information comprises a plurality of elements, and wherein each of the configuration components represents one element of the configuration information.

16. The system as recited in claim 15, wherein the configuration components are Java beans.

17. The system as recited in claim 15, wherein each of the configuration components comprises one or more access methods for accessing the element of the configuration information represented by the configuration component.

18. The system as recited in claim 15, wherein each of the plurality of configuration components is configured to access an element of the configuration information corresponding to the configuration component from the server configuration information on the persistent store via the configuration API.

19. The system as recited in claim 15, wherein one or more of the components are each configured to send lookup requests for one or more of the configuration components to the configuration API, wherein the lookup requests are formatted in accordance with a query language generic to the data storage format of the persistent store, and wherein the configuration API is configured to:

look up a requested configuration component; and

provide the requested configuration component to the requesting component;

wherein the requesting component is further configured to access the in-memory representation of the configuration information using the requested configuration component.

20. The system as recited in claim 21, wherein the query language is XPath.

21. The system as recited in claim 1, wherein one or more of the components are each configured to send lookup requests for one or more other components to the configuration API, wherein the lookup requests are formatted in accordance with a query language generic to the data storage format of the persistent store, and wherein the configuration API is configured to:

look up a requested component; and

provide the requested component to the requesting component.

22. The system as recited in claim 21, wherein the query language is XPath.

23. The system as recited in claim 1, wherein one or more of the plurality of components comprises are management components each configured to access the in-memory representation of the configuration information to perform a particular one of the server configuration tasks.

24. The system as recited in claim 23, wherein the management components are Java Management Extensions (JMX) MBeans.

25. The system as recited in claim 1, wherein the system is an application server system, wherein the plurality of servers comprises one or more application servers, and wherein the one of the plurality of servers is an administration server for the application server system.

26. A server, comprising:

a memory comprising an in-memory representation of configuration information from a persistent store of the configuration information, wherein the in-memory representation of the configuration information is formatted in accordance with an in-memory data format, and wherein the persistent store of the configuration information is formatted in accordance with a data storage format;

a plurality of components configured to access the in-memory representation of the configuration information to perform server configuration tasks; and

a configuration Application Programming Interface (API) configured to store the in-memory representation of the configuration information to the persistent store in accordance with the data storage format of the persistent store.

27. The server as recited in claim 26, wherein the configuration API is further configured to read the configuration information from the persistent store and write the configuration information to the in-memory representation of the configuration information.

28. The server as recited in claim 26, wherein the plurality of components is configured to access the in-memory representation of the configuration information transparent to a location of the persistent store.

29. The server as recited in claim 26, wherein the plurality of components is configured to access the in-memory representation of the configuration information transparent to the data storage format of the persistent store.

30. The server as recited in claim 26, further comprising a generation mechanism configured to generate the in-memory representation of the configuration information from meta-information describing the configuration information of the persistent store.

31. The server as recited in claim 26, further comprising a generation mechanism configured to generate at least a portion of the plurality of components from meta-information describing the configuration information of the persistent store.

32. The server as recited in claim 26, further comprising a user interface configured to access the plurality of components to perform the server configuration tasks in response to user input.

33. The server as recited in claim 32, further comprising a generation mechanism configured to generate the user interface from meta-information describing the configuration information of the persistent store.

34. The server as recited in claim 26, wherein the configuration API is further configured to store the in-memory representation of the configuration information to the persistent store in accordance with a different data storage format in response to a change of the data storage format of the persistent store to the different data storage format

35. The server as recited in claim 26, wherein one or more of the plurality of components are each configured to generate an access of the configuration information on the persistent store via the configuration API, wherein the configuration API is configured to perform the access in accordance with the data storage format.

36. The server as recited in claim 26, wherein the server is further configured to provide an instance of the in-memory representation of the configuration information to each of one or more other servers, wherein the one or more other servers are each configured to access the server information from the instance of the in-memory representation of the configuration information.

37. The server as recited in claim 26, further configured to generate an instance of the in-memory representation of the configuration information and an instance of the plurality of components on each of one or more other servers, wherein each instance of the plurality of components is configured to access the corresponding instance of the in-memory representation of the configuration information to perform configuration tasks of the particular server.

38. The server as recited in claim 26, wherein the server is further configured to:

modify the in-memory representation of the configuration information; and

send a notification of said modification of the in-memory representation of the configuration information to each of one or more other servers each comprising an instance of the in-memory representation of the configuration information to update the instances of the in-memory representation of the configuration information in response to said notification.

39. The server as recited in claim 26, wherein one or more of the plurality of components each comprise:

one or more program methods each configured to perform business logic of the server; and

one or more access methods for accessing one or more elements of the in-memory representation of the configuration information.

40. The server as recited in claim 26, further comprising a plurality of configuration components comprising the in-memory representation of the configuration information, wherein the configuration information comprises a plurality of elements, and wherein each of the configuration components represents one element of the configuration information.

41. The server as recited in claim 40, wherein the configuration components are Java beans.

42. The server as recited in claim 40, wherein each of the configuration components comprises one or more access methods for accessing the element of the configuration information represented by the configuration component.

43. The server as recited in claim 40, wherein each of the plurality of configuration components is configured to access an element of the configuration information corresponding to the configuration component from the server configuration information on the persistent store via the configuration API.

44. The server as recited in claim 40, wherein one or more of the components are each configured to send lookup requests for one or more of the configuration components to the configuration API, wherein the lookup requests are formatted in accordance with a query language generic to the data storage format of the persistent store, and wherein the configuration API is configured to:

look up a requested configuration component; and

provide the requested configuration component to the requesting component;

wherein the requesting component is further configured to access the in-memory representation of the configuration information using the requested configuration component.

45. The server as recited in claim 44, wherein the query language is XPath.

46. The server as recited in claim 26, wherein one or more of the components are each configured to send lookup requests for one or more other components to the configuration API, wherein the lookup requests are formatted in accordance with a query language generic to the data storage format of the persistent store, and wherein the configuration API is configured to:

look up a requested component; and

provide the requested component to the requesting component.

47. The server as recited in claim 46, wherein the query language is XPath.

48. The server as recited in claim 26, wherein one or more of the plurality of components are management components each configured to access the in-memory representation of the configuration information to perform a particular one of the server configuration tasks.

49. The server as recited in claim 48, wherein the management components are Java Management Extensions (JMX) MBeans.

50. The server as recited in claim 26, wherein the server is an application server.

51. The server as recited in claim 26, wherein the server is an administration server for one or more application servers in an application server system.

52. A method, comprising:

one or more of a plurality of components of a server accessing an in-memory representation of configuration information of the server to perform one or more server configuration tasks;

wherein an in-memory representation of configuration information is a representation of a persistent store of the configuration information, wherein the in-memory representation of configuration information is formatted in accordance with an in-memory data format, and wherein the persistent store is formatted in accordance with a data storage format; and

a configuration Application Programming Interface (API) storing the in-memory representation of configuration information to the persistent store in accordance with the data storage format of the persistent store.

53. The method as recited in claim 52, further comprising:

the configuration API reading at least a portion of the configuration information from the persistent store; and

the configuration API writing at least a portion of the configuration information to the in-memory representation of configuration information.

54. The method as recited in claim 52, further comprising one or more of the plurality of components accessing the in-memory representation of the configuration information transparent to a location of the persistent store.

55. The method as recited in claim 52, further comprising one or more of the plurality of components accessing the in-memory representation of the configuration information transparent to the data storage format of the persistent store.

56. The method as recited in claim 52, further comprising generating the in-memory representation of configuration information from meta-information describing the configuration information of the persistent store.

57. The method as recited in claim 52, further comprising generating at least a portion of the plurality of components from meta-information describing the configuration information of the persistent store.

58. The method as recited in claim 52, further comprising a user interface accessing the plurality of components to perform the server configuration tasks in response to user input.

59. The method as recited in claim 58, further comprising generating the user interface from meta-information describing the configuration information of the persistent store.

60. The method as recited in claim 52, further comprising:

changing the data storage format of the persistent store to a different data storage format; and

the configuration API storing the in-memory representation of configuration information to the persistent store in accordance with the different data storage format.

61. The method as recited in claim 52, further comprising:

one of the plurality of components generating an access of the configuration information on the persistent store via the configuration API; and

the configuration API performing the access in accordance with the data storage format.

62. The method as recited in claim 52, further comprising:

generating an instance of the in-memory representation of the configuration information on another server; and

the other server accessing the server information from the instance of the in-memory representation of the configuration information.

63. The method as recited in claim 52, further comprising:

generating an instance of the in-memory representation of configuration information and an instance of the plurality of components on each of one or more other servers; and

an instance of the plurality of components on one of the one or more servers accessing a corresponding instance of the in-memory representation of the configuration information to perform a configuration task of the particular server.

64. The method as recited in claim 52, further comprising:

modifying the in-memory representation of configuration information;

sending a notification of said modification of the in-memory representation of configuration information to each of one or more other servers each comprising an instance of the in-memory representation of configuration information; and

each of the one or more other servers updating the instances of the in-memory representation of configuration information in response to said notification.

65. The method as recited in claim 52, wherein one or more of the plurality of components each comprise one or more program methods for performing business logic of the server and one or more access methods for accessing the in-memory representation of configuration information.

66. The method as recited in claim 52, wherein the in-memory representation of configuration information is comprised in a plurality of configuration components, wherein the configuration information comprises a plurality of elements, and wherein each of the configuration components represents one element of the configuration information.

67. The method as recited in claim 66, wherein the configuration components are Java beans.

68. The method as recited in claim 66, wherein each of the configuration components comprises one or more access methods for accessing the element of the configuration information represented by the configuration component.

69. The method as recited in claim 66, further comprising one of the plurality of configuration components accessing a server configuration information element corresponding to the configuration component from the server configuration information on the persistent store into the configuration component via the configuration API.

70. The method as recited in claim 66, further comprising:

one of the plurality of components sending a lookup request for one of the configuration components to the configuration API, wherein the lookup request is formatted in accordance with a query language generic to the data storage format of the persistent store;

the configuration API looking up the requested configuration component;

the configuration API providing the requested configuration component to the requesting component; and

the requesting component accessing the in-memory representation of the configuration information using the requested configuration component.

71. The method as recited in claim 70, wherein the query language is XPath.

72. The method as recited in claim 52, further comprising:

one of the plurality of components sending a lookup request for one of the other components to the configuration API, wherein the lookup requests are formatted in accordance with a query language generic to the data storage format of the persistent store;

the configuration API looking up the requested component; and

the configuration API providing the requested component to the requesting component.

73. The method as recited in claim 72, wherein the query language is XPath.

74. The method as recited in claim 52, wherein one or more of the plurality of components are management components each configured to access the in-memory representation of configuration information to perform a particular one of the server configuration tasks.

75. The method as recited in claim 74, wherein the management components are Java Management Extensions (JMX) MBeans.

76. The method as recited in claim 52, wherein the server is an application server.

77. The method as recited in claim 52, wherein the server is an administration server for one or more application servers in an application server system.

78. A computer accessible medium comprising program instructions configured to implement:

one or more of a plurality of components of a server accessing an in-memory representation of configuration information of the server to perform one or more server configuration tasks;

wherein the in-memory representation of configuration information is a representation of a persistent store of configuration information, wherein the in-memory representation of configuration information is formatted in accordance with an in-memory data format, and wherein the persistent store is formatted in accordance with a data storage format; and

a configuration Application Programming Interface (API) storing the in-memory representation of configuration information to the persistent store in accordance with the data storage format of the persistent store.

79. The computer accessible medium as recited in claim 78, wherein the program instructions are further configured to implement:

the configuration API reading at least a portion of the configuration information from the persistent store; and

the configuration API writing at least a portion of the configuration information to the in-memory representation of configuration information.

80. The computer accessible medium as recited in claim 78, wherein the program instructions are further configured to implement one or more of the plurality of components accessing the in-memory representation of the configuration information transparent to a location of the persistent store.

81. The computer accessible medium as recited in claim 78, wherein the program instructions are further configured to implement one or more of the plurality of components accessing the in-memory representation of the configuration information transparent to the data storage format of the persistent store.

82. The computer accessible medium as recited in claim 78, wherein the program instructions are further configured to implement generating the in-memory representation of configuration information from meta-information describing the configuration information of the persistent store.

83. The computer accessible medium as recited in claim 78, wherein the program instructions are further configured to implement generating at least a portion of the plurality of components from meta-information describing the configuration information of the persistent store.

84. The computer accessible medium as recited in claim 78, wherein the program instructions are further configured to implement a user interface accessing the plurality of components to perform the server configuration tasks in response to user input.

85. The computer accessible medium as recited in claim 84, wherein the program instructions are further configured to implement generating the user interface from meta-information describing the configuration information of the persistent store.

86. The computer accessible medium as recited in claim 78, wherein the program instructions are further configured to implement:

changing the data storage format of the persistent store to a different data storage format; and

the configuration API storing the in-memory representation of configuration information to the persistent store in accordance with the different data storage format.

87. The computer accessible medium as recited in claim 78, wherein the program instructions are further configured to implement:

one of the plurality of components generating an access of the configuration information on the persistent store via the configuration API; and

the configuration API performing the access in accordance with the data storage format.

88. The computer accessible medium as recited in claim 78, wherein the program instructions are further configured to implement:

generating an instance of the in-memory representation of the configuration information on another server; and

the other server accessing the server information from the instance of the in-memory representation of the configuration information.

89. The computer accessible medium as recited in claim 78, wherein the program instructions are further configured to implement:

generating an instance of the in-memory representation of configuration information and an instance of the plurality of components on each of one or more other servers; and

an instance of the plurality of components on one of the one or more servers accessing a corresponding instance of the in-memory representation of the configuration information to perform a configuration task of the particular server.

90. The computer accessible medium as recited in claim 78, wherein the program instructions are further configured to implement:

modifying the in-memory representation of configuration information;

sending a notification of said modification of the in-memory representation of configuration information to each of one or more other servers each comprising an instance of the in-memory representation of configuration information; and

each of the one or more other servers updating the instances of the in-memory representation of configuration information in response to said notification.

91. The computer accessible medium as recited in claim 78, wherein one or more of the plurality of components each comprise one or more program methods for performing business logic of the server and one or more access methods for accessing the in-memory representation of configuration information.

92. The computer accessible medium as recited in claim 78, wherein the in-memory representation of configuration information is comprised in a plurality of configuration components, wherein the configuration information comprises a plurality of elements, and wherein each of the configuration components represents one element of the configuration information.

93. The computer accessible medium as recited in claim 92, wherein the configuration components are Java beans.

94. The computer accessible medium as recited in claim 92, wherein each of the configuration components comprises one or more access methods for accessing the element of the configuration information represented by the configuration component.

95. The computer accessible medium as recited in claim 92, wherein the program instructions are further configured to implement one of the plurality of configuration components accessing a server configuration information element corresponding to the configuration component from the server configuration information on the persistent store into the configuration component via the configuration API.

96. The computer accessible medium as recited in claim 92, wherein the program instructions are further configured to implement:

one of the plurality of components sending a lookup request for one of the configuration components to the configuration API, wherein the lookup request is formatted in accordance with a query language generic to the data storage format of the persistent store;

the configuration API looking up the requested configuration component;

the configuration API providing the requested configuration component to the requesting component; and

the requesting component accessing the in-memory representation of the configuration information using the requested configuration component.

97. The computer accessible medium as recited in claim 96, wherein the query language is XPath.

98. The computer accessible medium as recited in claim 78, wherein the program instructions are further configured to implement:

one of the plurality of components sending a lookup request for one of the other components to the configuration API, wherein the lookup requests are formatted in accordance with a query language generic to the data storage format of the persistent store;

the configuration API looking up the requested component; and

the configuration API providing the requested component to the requesting component.

99. The computer accessible medium as recited in claim 98, wherein the query language is XPath.

100. The computer accessible medium as recited in claim 78, wherein one or more of the plurality of components are management components each configured to access the in-memory representation of configuration information to perform a particular one of the server configuration tasks.

101. The computer accessible medium as recited in claim 100, wherein the management components are Java Management Extensions (JMX) MBeans.

102. The computer accessible medium as recited in claim 78, wherein the server is an application server.

103. The computer accessible medium as recited in claim 78, wherein the server is an administration server for one or more application servers in an application server system.