PLUG-IN BASED HIGH AVAILABILITY APPLICATION MANAGEMENT FRAMEWORK (AMF)
A high availability method enabling addition and removal of an application plug-in comprises launching the high availability system using a processor, said high availability system having an application framework (AMF), requesting data obtainable by the application plug-in from the application framework, and when the application plug-in does not exist in the application framework, registering the application plug-in in the application framework. AMF can comprise a list of additional application plug-ins. The list can comprises a unique id, a name, and a path to dynamic load libraries for each application plug-in. AMF can add the application plug-in by adding the application plug-in dynamic load library files to the installation folder and adding application plug-in information to the configuration file. AMF can remove the application plug-in by deleting the application plug-in dynamic load library files from the installation folder and deleting the application plug-in information from the configuration file.
1 . A high availability system enabling addition and removal of an application plug-in, comprising:
a central processor executing a manager;
an application framework;
an active host having a host engine executing on a host processor on the active host; and
a standby host corresponding to the active host, the standby host having a standby engine and a standby processor on the standby host, wherein the manager sends a request to the active host for data obtainable by the application plug-in, the host engine sends the request to the application framework, and when the application plug-in does not exist in the application framework, the application framework adds the application plug-in and obtains the data using the application plug-in.
2 . The system according to claim 1 , wherein the application framework comprises at least a list of additional application plug-ins available on the active host.
3 . The system according to claim 2 , wherein the list comprises a unique id, a name, and a path to dynamic load libraries for each application plug-in.
4 . The system according to claim 1 , wherein the manager includes at least a configuration file and an installation folder having application plug-in dynamic load library files.
5 . The system according to claim 1 , wherein the application framework adds the application plug-in to the application framework by adding the application plug-in dynamic load library files to the installation folder and adding application plug-in information to the configuration file.
6 . The system according to claim 4 , wherein the application framework removes the application plug-in from the application framework by deleting the application plug-in dynamic load library files from the installation folder and deleting the application plug-in information from the configuration file.
7 . The system according to claim 1 , wherein the application framework removes the application plug-in from the application framework in response to a user request.
8 . A method for enabling straightforward addition and removal of an application plug-in on a high availability system, comprising steps of
launching the high availability system using a processor, said high availability system having an application framework;
requesting data obtainable by the application plug-in from the application framework; and
when the application plug-in does not exist in the application framework, registering the application plug-in in the application framework.
9 . The method according to claim 8 , wherein the step of registering the application plug-in comprises steps of:
loading the application framework;
reading plug-in configuration; and
loading plug-in information according to the configuration.
10 . The method according to claim 8 , wherein the application framework comprises at least a list of additional application plug-ins available on the active host.
11 . The method according to claim 10 , wherein the list comprises a unique id, a name, and a path to dynamic load libraries for each application plug-in.
12 . The method according to claim 8 , wherein the high availability system has a manager comprising at least a configuration file and an installation folder having application plug-in dynamic load library files.
13 . The method according to claim 12 , wherein the step of registering further comprises:
adding the application plug-in dynamic load library files to the installation folder; and
adding application plug-in information to the configuration file.
14 . The method according to claim 12 , wherein the step of unregistering further comprises:
deleting the application plug-in dynamic load library files from the installation folder; and
deleting the application plug-in information from the configuration file.
15 . The method according to claim 8 , wherein the step of unregistering is performed in response to a user request.
16 . A computer readable storage medium storing a program of instructions executable by a machine to perform a method for enabling straightforward addition and removal of an application plug-in on a high availability system, comprising:
launching the high availability system using a processor, said high availability system having an application framework;
requesting data obtainable by the application plug-in from the application framework; and
when the application plug-in does not exist in the application framework, registering the application plug-in in the application framework.
17 . The medium according to claim 8 , wherein the step of registering the application plug-in comprises steps of
loading the application framework;
reading plug-in configuration; and
loading plug-in information according to the configuration.
18 . The medium according to claim 16 , wherein the application framework comprises at least a list of additional application plug-ins available on the active host.
19 . The medium according to claim 18 , wherein the list comprises a unique id, a name, and a path to dynamic load libraries for each application plug-in.
20 . The medium according to claim 16 , wherein the high availability system has a manager comprising at least a configuration file and an installation folder having application plug-in dynamic load library files.
21 . The medium according to claim 20 , wherein the step of registering further comprises:
adding the application plug-in dynamic load library files to the installation folder; and
adding application plug-in information to the configuration file.
22 . The medium according to claim 20 , wherein the step of unregistering further comprises:
deleting the application plug-in dynamic load library files from the installation folder; and
deleting the application plug-in information from the configuration file.
23 . The medium according to claim 16 , wherein the step of unregistering is performed in response to a user request.