Unable to discover agent in grid!

Question

Hi,
We have Oracle 11g grid up and running. I was installing agent on the target servers using `agent push` method (using deployment wizard of grid). At the end of the installation I got an error "Install: failed" but when I navigated to HOME tab in the grid, I could see the new server. Great!!! Then I installed agent using same method on other server(i will call it X). Again install failed but this time server X did not appear in the discovered targets list. Both the servers i.e. grid and server X are in two different network(i guess). OS and db version on both the servers are same. Below is the ip address of both servers:
grid : 10.101.248.123
server X : 10.106.8.117
Is this an issue? Any suggestions?
-Onkar

Answer 1

If "AGENT_BASE_DIR" is empty, that means the Agent push failed at the initial stage of copying the binaries from
OMS host to Agent Host and so empty folder. Agent may need to be installed again using below document to install 11g Agent with Silent method.
http://docs.oracle.com/cd/E11857_01/install.111/e16847/install_agent_usng_rsp.htm#CEGGACJE
All the prerequisties must be checked carefully and make sure that the system satisfy all of them and then proceed with the installation.
The prerequisite are listed :
http://docs.oracle.com/cd/E11857_01/install.111/e16847/install_agent_usng_rsp.htm#CEGIAADH
The silent installation may failed if "OMS_PORT set to the secure upload port (HTTPS) instead of unsecure upload port (HTTP)
in the response file."
To resolve the issue, kindly follow the below steps:
[*] Change OMS_PORT to the unsecure (HTTP) upload port in the response file.
This can be obtained from the output of :
<OMS_HOME>/bin/emctl status oms -details[*] Keep all the parameters value with-in double quotes ("") except for Boolean values (True / False).
For example:
OMS_HOST="<OMS Host server name>"
OMS_PORT="4900"
AGENT_REGISTRATION_PASSWORD="<password>"After installation, agent should be discovered in the grid if not then
* From OMS machine [grid1.company.com] to Agent machine [machine1.company.com]:
ping <full host where agent is installed ex. machine1.company.com>
ping machine1
ping <IP Address of machine1.company.com>
nslookup <full host where agent is installed ex. machine1.company.com>
nslookup machine1
nslookup <IP Address of machine1.company.com>[+] From Agent machine [machine1.company.com] to OMS machine [grid1.company.com]:
ping <full host name where OMS is installed ex: grid1.company.com>
ping grid1
ping <IP Address of grid1.company.com>
nslookup grid1.company.com
nslookup grid1
nslookup <IP Address of grid1.company.com>
telnet grid1.company.com 4889
telnet grid1 4889
telnet <IP Address of grid1.company.com> 4889If all the connection seems to be correct, then kindly make the changes in additional_agent.rsp file as:
SECURITY_UPDATES_VIA_MYORACLESUPPORT=false
DECLINE_SECURITY_UPDATES=trueand then re-try the silent installation.
It worked for me.