An application is similar to Process resource, but it is more flexible and can be managed by batch script which contains multiple processes.
The reason why program is executed using batch script is because it will make it possible managed by MCCS even when the name of starting program and running program is not the same. Besides this, it not only monitors the existence of process but also monitors the response of process with this.
For these reasons, batch script will provide more detail monitoring and flexibility and an application agent manages this.
Same as process, application is basically executed with the system account, but is can be executed with particular user by using attributes of User, Password, Domain.
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Adding
There are two way to add a resource which one is select this from a group name and another is select this from a resource type.
Adding in Group
- When add a resource from a group name, select a group → right click → 'Add Resource'. Or select Edit(E) from the main menu bar → select 'Add Resource'. Or select 'Add Resource' icon from the tool bar.
[Figure] Adding Resource in a group - Select 'Application' from Resource Type lists and click 'Next' button. When add a resource from the Application resource type name, this step will be skipped.
[Figure] Resource Wizard Selection View - Next steps are same as adding in resource type.
Adding in Resource Type
- ResourceType → Right Click → Click Add Resource
[Figure] Adding Resource in a resource type - Enter Resource name, pre-script file name in the StartProgram, StopProgram and MonitorProgram box.
[Figure] Adding application resource view - You can browse pre-scripted file when select the file selection icon.
[Figure] Entering script file View - You can browse pre-scripted file when select the file selection icon.
[Figure] Script file selection View - You can also write the script through selecting write script icon.
[Figure] File Editor View After you have completed all of the input screen.
MCCS checks the list of monitor process list and monitor program when all the value of MonitorProgram and MonitorProcesses is entered.
[Figure] Enter the script files and path for each attribute- If you have an account that can execute application resource, you can enter the account as below.
[Figure] Defining user account - Click 'Finish' and resource is added.
[Figure] Adding Application resource is completed
Deleting
Select resource type → right click → delete resource.
Select delete menu.
[Figure] Deleting application resource view
Status
The following table explains the status switching of the MCCS resource caused by a user's command and the status.
The command assumes that it is generated by a user
Application agent: It manages general application items.
It provides a more complex, wider expandability than processes to manage applications and services.
Status | Agent command | Description | Note |
---|---|---|---|
Online All the processes registered in MonitorProcesses are running and MonitorProgram returns '0'. | Offline | Runs the script registered in the StopProgram attributes. | |
Monitoring | Runs the scripts registered in the MonitorProgram attributes. | ||
Offline If any one of the processes registered in MonitorProcesses is terminated or the monitoring program returns a non-zero value, it is deemed as offline. | Online | Runs the script registered in the StartProgram attribute. | |
Monitoring | Refer to the description of monitoring as above. | ||
Trouble When the online resource is switched to offline without using the agent termination command, it is defined as the trouble state. | Online | Refer to the above online command. | |
Offline | Runs the script registered in the StopProgram attributes. |
Attribute
[Figure] Application Attribute
Attribute | Description | type | Default | Edit | Note |
Domain | It specifies domain of user account. | STRING | O | ||
MonitorProcesses | It is the list of the process to be monitored. | STRING | O | If Monitor Program does not exist, this is required and is able to insert both attributes Both must be satisfying when insert both attributes. | |
MonitorProgram | It is a program that executes programs for monitoring or inserts the path name of the batch script. | FILE | O | If MonitorProcesses does not exist, this is required and is able to insert both attributes Both must be satisfying when insert both attributes. | |
Password | It is the password defined by the user. | PASSWORD | O | ||
StartProgram | It is a program to bring online the Application in each node. | FILE | O | ||
StartupDirectory | It is a work directory. it means %MCCS_HOME if it does not have a input value. | DIRECTORY | (.) | O | |
StopProgram | It is a program to take offline the Application of each node. | FILE | O | ||
User | It is a user name which has received the permission to use the application. | STRING | System Account | O |
Attribute value of ArgList arguments are the values that are added resources and the value can be changed or viewed through ’Specified Attribute’ list on the detailed information panel.