7.4 Applications
- 헌규임
- 이진현
- JuneL (Unlicensed)
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.
Table of Contents
Adding
Add the complex application resource to a 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.
- 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.
Enter the name of resource and the program for start, termination and monitoring, or the process lists for monitoring target.
In the start, terminate or monitoring program, click
'File' button to select each script file
or, click the
'Edit' button to create a script file.- If all of the monitoring program and the process lists for monitoring target are entered, check whether the monitoring program is successful or whether there are process lists for monitoring target.
- The default user for running the basic app is the user that runs the MCCS process.
If the process needs to run for another user other than the default user, then you must designate an execution account as follows.
[Figure] Complex Application Resource Added- Click the 'Finish' to see that the complex application resource is created as follows.
You can immediately check the result in the management web console.
Deleting
Select resource type → right click → delete resource.
The deleted resource will immediately disappear from the management web console.
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. | ||
Fault 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
Show the unique attribute of complex application resource.
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.