Cannot start Agent at Target Server

Question

Hi,
I have my OMS / OMR on a Windows 32 bit. One of my target servers ( Oracle Linux 4 ) running a management agent 10.2.0.1 wont seem to start.
I have edited my emd.properties to have a different port than the default one ( thinking there might be a conflict ) ; here is the output
[oracle@server1 bin]$ emctl start agent
Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
Starting agent ................................. failed.
EMD_URL=https://server1.sam:3873/emd/main/
REPOSITORY_URL=https://sennovat-1:1159/em/upload
( I have another server having same data - cross verified the data here is correct )
[oracle@server1 config]$ emctl status agent
Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
Agent is Not Running
D:\OracleHomes\db10g\BIN>lsnrctl status listener
LSNRCTL for 32-bit Windows: Version 10.1.0.4.0 - Production on 06-MAY-2008 16:14
:06
Copyright (c) 1991, 2004, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(PORT=1521))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 10.1.0.4.0 - Produ
ction
Start Date 06-MAY-2008 12:14:37
Uptime 0 days 3 hr. 59 min. 32 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Log File D:\OracleHomes\db10g\network\log\listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=sennovat-1)(PORT=1521)))
Services Summary...
Service "repos" has 1 instance(s).
Instance "repos", status READY, has 1 handler(s) for this service...
The command completed successfully
D:\OracleHomes\oms10g\opmn\bin>opmnctl status
Processes in Instance: EnterpriseManager0.sennovat-1
------------------------------------------------+---------
ias-component | process-type | pid | status
------------------------------------------------+---------
DSA | DSA | N/A | Down
HTTP_Server | HTTP_Server | 1964 | Alive
LogLoader | logloaderd | N/A | Down
dcm-daemon | dcm-daemon | 1600 | Alive
OC4J | home | 720 | Alive
OC4J | OC4J_EM | 684 | Alive
OC4J | OC4J_EMPROV | 776 | Alive
WebCache | WebCache | 768 | Alive
WebCache | WebCacheAdmin | 112 | Alive
D:\OracleHomes\oms10g\BIN>emctl status oms
Oracle Enterprise Manager 10g Release 10.2.0.2.0
Copyright (c) 1996, 2006 Oracle Corporation. All rights reserved.
Oracle Management Server is Up.
[oracle@server1 config]$ ps -efa | grep smon | grep -v grep
oracle 24719 1 0 15:52 ? 00:00:00 ora_smon_GIST
Any ideas on how I can get this target agent to come alive ?

Answer 1

Thanks for your reply.
Here is the entries for the 3 files - Today is May 7, 2008 7AM local time.
BUT none of the entries here reflect anything at this time ... Please take a look.
Emagent.nohup ENTRY :
----- Tue May 6 10:56:39 2008::Checking status of EMAgent : 9881 -----
----- Tue May 6 10:56:39 2008::EMAgent exited at Tue May 6 10:56:39 2008 with return value 0. -----
----- Tue May 6 10:56:39 2008::EMAgent was shutdown normally. -----
----- Tue May 6 10:56:39 2008::Exiting watchdog loop
----- Tue May 6 10:56:41 2008::Agent Launched with PID 25545 at time Tue May 6 10:56:41 2008 -----
(pid=25545): starting emagent version 10.2.0.1.0
(pid=25545): emagent started successfully
(pid=25545): Exiting normally due to signal SIGTERM
emagent.trc ENTRY :
SQL = " OCIServerAttach"...
LOGIN = dbsnmp/<PW>@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=server1.sam)(PORT=1521))(CONNECT_DATA=(SID=DBPRO)))
2008-05-06 11:05:44 Thread-130726832 ERROR vpxoci: ORA-12505: TNS:listener does not currently know of SID given in connect descriptor
emagent.log ENTRY
2008-05-06 10:56:42 Thread-4143826624 [E-Mail SMTP Inbound Server] InstanceProperty (smtp_host) is marked OPTIONAL but is being used (00506)
2008-05-06 10:56:42 Thread-4143826624 [E-Mail SMTP Outbound Server] InstanceProperty (smtp_host) is marked OPTIONAL but is being used (00506)
2008-05-06 10:56:44 Thread-4143826624 EMAgent started successfully (00702)
This is probably the time ( yesterday ) when I referred to the fact that it intermittently worked ... until I restarted the server.
Here is what I made sure while starting the server : That the Oracle SID was set .. and that the Listener reflected the started instance. Verified that the OMS, OMR and the agent there was UP and running.
I then issued the "emctl start agent " which came up as FAILED.
Am I missing something that should have been done ?