How to control Oracle Management Agent ....Part 1

How to control Oracle Management Agent

Below are the activities mainly requeired for working with OEM Agent. We need the emctl utility to control this.

1. How to stop, start, and check status of Management Agent on UNIX
2. How to stop, start Management Agent on Windows
3. How to check the Status of the Management Agent on Windows
4. How to troubleshoot Errors related to startup of Management Agent 

How to stop, start, and check status of Management Agent on UNIX:

When you start the agent on UNIX systems, it starts the parent watchdog process and the child Java process for the agent. The watchdog monitors the agent Java process and attempts to start it if it fails abnormally.

To start, stop, or check the status of the Management Agent on UNIX systems:

1.You have to go to the AGENT_INSTANCE_HOME/bin directory.

2.Need to run the emctl command with appropriate parameter

Below is an example to stop an agent

$PROMPT> cd AGENT_INSTANCE_HOME/bin
$PROMPT> emctl stop agent

Command:
emctl start agent
 Starts the Management Agent

emctl stop agent
 Stops the Management Agent

emctl status agent
 it shows the status

$ ./emctl status agent
Oracle Enterprise Manager 12c Release 3 Cloud Control 12.1.0.3.0
Copyright (c) 1996, 2013 Oracle Corporation.  All rights reserved.
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Agent Version     : 12.1.0.2.0
OMS Version       : 12.1.0.2.0
Protocol Version  : 12.1.0.1.0
Agent Home        : /scratch/aime/work/agtbase7453/agent_inst
Agent Binaries    : /scratch/aime/work/agtbase7453/core/12.1.0.3.0
Agent Process ID  : 7834
Parent Process ID : 7781
Agent URL         : https://slc01lwi.us.oracle.com:3872/emd/main/
Repository URL    : https://slc01lwi.us.oracle.com:4900/empbs/upload
Started at        : 2013-06-05 01:33:33
Started by user   : aime
LLast Reload       : (none)
Last successful upload                       : 2013-06-20 22:17:50
Last attempted upload                        : 2013-06-20 22:17:50
Total Megabytes of XML files uploaded so far : 20.08
Number of XML files pending upload           : 0
Size of XML files pending upload(MB)         : 0
Available disk space on upload filesystem    : 62.89%
Collection Status                            : Collections enabled
Heartbeat Status                             : Ok
Last attempted heartbeat to OMS              : 2013-06-20 22:17:49
Last successful heartbeat to OMS             : 2013-06-20 22:17:49
Next scheduled heartbeat to OMS              : 2013-06-20 22:18:49
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