The agent slave Database Host cannot be found when the slave database is created in em12c.

Symptom: When you use em12cr4 to create a slave database, you cannot find the slave Database Host, but the slave Database Host already exists in the host list, in addition, the agent on the slave Database Host has been installed and the status is normal.   Cause: The required plug-ins are missing in the agent directory.   Solution: Install agent 1. log on to em12c 2. Install-> extensibility-plug-ins> 3. On the plug-ins page, choose database> Oracle Database   4. Click deploy on-> management agent.     5. Click "continue" to add the agent plug-in for the listed hosts.     Reference: 12c creation of standby database failed with "the grid control database plug-in must be deployed on the agent monitoring the selected host." (Document ID 1510979.1)

Modification time: 2012-12-15 type: Problem

In this document Symptoms   Cause   Solution Applies: Enterprise Manager base platform-version 12.1.0.2.0 to 12.1.0.2.0 [release 12.1] Information in this document applies to any platform. Symptoms Creation of standby database from OEM 12.1.0.2 fails with the following error: The grid control database plug-in must be deployed on the agent monitoring the select host.   Cause Plugins directory at the agent side does not have the required plugin /U01/APP/Oracle/product/agent12c/plugins $ LS-LTR Total 20 Drwxr-XR-x 7 Oracle 4096 Nov 29 oracle. sysman. Xa. Discovery in_12.1.0.3.0 Drwxr-XR-x 7 Oracle 4096 Nov 29 oracle. sysman. Oh. Discovery. plugin_12.1.0.2.0 Drwxr-XR-x 7 Oracle 4096 Nov 29 oracle. sysman. DB. Discovery. plugin_12.1.0.2.0 Drwxr-XR-x 10 Oracle 4096 Nov 29 oracle. sysman. Oh. Agent. plugin_12.1.0.2.0 Drwxr-XR-x 9 Oracle 4096 Nov 29 oracle. sysman. EMAS. Discovery in_12.1.0.3.0   Oracle. sysman. DB. Agent. pluginIs missing which is required for monitoring.   Solution To create standby database on a new server, we still need a plugin to be deployed on the agent. Please do the following steps: 1. login to 12C cloud Control 2. Navigate to setup --> extensibility 3. select the option plugins 4. Expand the option "databases" 5. Select "Oracle Database" 6. Expand the option "deploy on" and choose "management agent" 7. In the page displayed, click on "add" to add the agent on which plugin needs to be deployed (on the server where standby is created ). 8. After adding the agent name, it will run the prerequisite check, after successful completion of prerequisite check, click on next. 9. A confirmation message about deployment of database plugin on management agent will be displayed.   This will complete the deployment of database plugin to management agent. Once this is done, create standby database.

 

The agent slave Database Host cannot be found when the slave database is created in em12c.