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7-4 Applications

7-4 Applications

The application resource is the resource where MCCS can start or terminate the program and monitor the status.
It is similar to the process resource. But, it can achieve more complex process and combination by using scripts beside general process execution.   In addition, the application resource can set the execution path for starting, terminating or monitoring.
We execute the programs by using the batch scripts because we can handle everything even if the name of start program is different from the name of running process as in the case of service applications.
Sometimes, in the list of running processes, we need to monitor (response test) whether the process is providing proper service as well as monitoring the existence of process (existence test). To process such tasks flexibly, we can use the batch scripts.
In the application resource, you can enter the scripts. Just like the process resource, the applications can basically run on the root account, but by using User attributes, you can run it on a specific user account.

Table of Contents

Adding

Add the complex application resource to a group.

Adding in Group

  1. Select a group → right click → 'Add Resource'.

  2. Select 'Application' from Resource Type lists and click 'Next' button.

  3. 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 the 'File' button to select each script file
    or, click the 'Edit' button to create a script file.

    1. If all of the monitoring programs 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.
    2. 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] Add Complex Application Resource

     

  4. Click '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.

StatusAgent commandDescriptionNote

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.
When the scripts are used for monitoring, the final value of 0 means success and other value means failures.
When you use the list of processes registered in the MonitorProcesses attributes for monitoring, then if all the processes registered in the list are running, it is success. If not, it is failures.
When both the process list and script are registered, meeting both the conditions means success, and if there is no process list or the script is not successful, it is regarded as a failure.

 

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.
StartProgram attributes allow you to use the batch scripts to run the program in a more flexible way than the process resource.
If the wrong path is entered, MCCS will display an error log and the resource cannot be used.

 
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.

 
OfflineRuns the script registered in the StopProgram attributes. 

 

 

Attribute

Show the unique attribute of application resource.

Attribute

Description

Type

DefaultEditNote

MonitorProcesses

It is the list of processes to monitor.
The process name is the name of execution file. If more than one, use a comma (',') as a separator.
Either of this value and 'MonitorProgram' must be entered.

STRING

 O

 

If there is no MonitorProgram, you must enter the attribute.
You can enter the both attributes. If you do, the both of them should meet the requirements.

MonitorProgram

Enter the path for the program or batch script used to monitor status
Either of the value and the 'list of monitoring processes' should be entered.

FILE

 O

StartProgram

Enter the path for the batch script or program to run when starting the resource.

FILE

 O 

StartupDirectory

It is the working directory where the program starts. If there is no input, it means $MCCS_HOME.

DIRECTORY

(.)O 

StopProgram

It is the path for the batch script or program to run when terminating the resource.

FILE

 O 

User

It is a user account having the rights to use the program.
Can run the programs such as Clean, Monitor, Start or Stop.
 If there is no input, it uses the MCCS execution account.

STRING

rootO 

The attribute value is entered to register the resource, and you can change or check it in the 'Specified Attribute'.


 

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