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-> Manage Oracle Application Server (OAS) 10g

 

 Manage Oracle Application Server (OAS) 10g

 

 

1.   What is Oracle Process Management and Notification Server (OPMN) ? 

2.   How can we show the status of opmn processes ?

3.   How can we start an ias component ?

4.   How can we start a particular process with opmnctl ? 

5.   How can we start all managed processes with opmnctl ?

6.   What is Application Server Control Interface used for ?

7.   What is the Dynamic Monitoring Service ?

8.   What is the Distributed Configuration Management ?

9.   How can we start/ stop/get the status of the Oracle Application Server Console ?

10. What can we do with DCM, OPMN and Application Server Console ?

1. What is Oracle Process Management and Notification Server (OPMN) ?

 

OPMN monitors and manages the various components of the Oracle AS instance. OPMN is installed and configured during the middle-tier and infrastructure installation. OPMN manage all Oracle AS component processes, except 2: the Oracle Metadata Repository and the Application Server Control.  

 

 

2. How can we show the status of opmn processes ?

 

$opmnctl status

 

Processes in Instance: infra_10_1_2.mydomain.org

----------------------+-------------------------+---------+--------------

 ias-component           |  process-type                 |        pid  |    status        

----------------------+ -------------------------+ --------+--------------

LogLoader                 |  logloaderd                      |     N/A   |   Down

DSA                          |  DSA                               |     N/A   |  Down

HTTP_Server            |  HTTP_Server                 |    3771   |  Alive

dcm-daemon              |  dcm-daemon                  |    5367   |  Alive

OC4J                         |  home                              |     267    |  Alive

OC4J                         |  oca                                 |    7645   |  Alive

OC4J                         |  OC4J_SECURITY        |       471   |  Alive

OID                           |  OID                                |     1634  |  Alive

 

 

3. How can we start an ias component?

 

$ opmnctl startproc ias-component=WebCache

 

 

4. How can we start a particular process with opmnctl ?

 

$ opmnctl startproc process-type=WebCacheAdmin

 

 

5. How can we start all managed processes with opmnctl ?

 

$ opmnctl startall

 

To stop all managed processes the option stopall is used:

$ opmnctl startall

 

 

6. What is Application Server Control Interface used for?

 

Using Application Server Control Interface we can do the following:

  • Manage OracleAS Cluster

  • Manage and Monitor Application server components

  • Diagnose the performance of application components

  • Configure the components

  • Deploy applications

  • Manage Security

 

7. What is the Dynamic Monitoring Service ?

 

The Dynamic Monitoring Service collects performance information, called DMS metrics, that developers and system administrators can use to analyze system performance. DMS stores application metrics in memory and you can view them in the Application Server Console or using dmstool utility and AggreSpy servlet. 

 

 

8. What is the Distributed Configuration Management (DCM) ?

 

DCM provides the following capabilities:

  • Manage AS instance configuration in an Oracle AS Farm;

  • Enable a configuration change in one instance to be automatically propagated to all the instances in a Cluster;

  • Enable you to deploy an application in an instance and have it propagated automatically to all the instances in the Cluster;

  • Manages the various configuration versions.  

 

9. How can we start/ stop/get the status of the Oracle Application Server Console ?

 

$ emctl start | stop| status iasconsole

 

 

10. What can we do with DCM, OPMN and Application Server Console ?

 

Capability DCM OPMN Oracle AS Control
Starting and Stopping instances and components No YES YES
Starting and Stopping Oracle AS Cluster No YES YES
Creating OC4J Instances YES No YES
Creating and Joining Oracle AS Cluster YES No YES
Deploying/ undeploying applications YES No YES
Checking the status of instance and components YES YES YES

 

 

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