Enterprise Manager doesn't connect to DB

Question

Hi,
my Enterprise Manager 11g on Windows Server 2003 64-bit is not able to connect to the database instance. Listener is up and agent connection with instance (or so) is not available.
Listner and database are running because I can connect via sqlplus. Also agent and contorl are working fine.
emctl status agent
Oracle Enterprise Manager 11g Database Control Release 11.1.0.6.0
Copyright (c) 1996, 2007 Oracle Corporation. All rights reserved.
Agent Version : 10.2.0.3.0
OMS Version : 10.2.0.3.0
Protocol Version : 10.2.0.2.0
Agent Home : D:\Oracle\product\11.1.0\db_1\[computername_sid]
Agent binaries : D:\Oracle\product\11.1.0\db_1
Agent Process ID : 3404
Agent URL : https://[computername]:3938/emd/main
Repository URL : https://[computername]:1158/em/upload/
Started at : 2008-03-14 02:07:27
Started by user : SYSTEM
Last Reload : 2008-03-14 02:07:27
Last successful upload : (none)
Last attempted upload : (none)
Total Megabytes of XML files uploaded so far : 0.00
Number of XML files pending upload : 626
Size of XML files pending upload(MB) : 24.87
Available disk space on upload filesystem : 94.26%
Data channel upload directory : D:/Oracle/product/11.1.0/db_1/[computername_sid]/sysman/recv
Last attempted heartbeat to OMS : 2008-03-14 02:10:34
Last successful heartbeat to OMS : unknown
Agent is Running and Ready
emctl status dbconsole
Oracle Enterprise Manager 11g Database Control Release 11.1.0.6.0
Copyright (c) 1996, 2007 Oracle Corporation. All rights reserved.
https://[computername]:1158/em/console/aboutApplication
Oracle Enterprise Manager 11g is running.
Logs are generated in directory D:\Oracle\product\11.1.0\db_1/[computername_sid]/sys
man/log
First of all: it had worked before! Then I had forgotten sys/system/sysman passwort (yes it's a bad idea using the same password). So connected via sqlplus with OS authentication and changed sys's password. Loged in to the database with EM, changed system and sysman to the same password as sys.
Everything worked OK connecting to the DB via sqlplus or sql developer and other tools. But today I wanted to connect to the DB using EM, doesn't work.
Searching the forums I found a tip that sysman password should be the same as sys password. I wanted to check sysman's acount. Sqlplus said account locked. So I have done alter user sysman account unlock. After that I can connect with sysman via sqlplus, but after loading EM in the browser or restarting the console I am not able to connect via sqlplus as sysman because the acount is locked again. Whenever I am restarting the db console or browsing to loclahost:1158/em with or without restarting the console the sysman account is locked.
Maybe that is an indicator showing what's going wrong? Is there another option rather than deleting and reinstalling the db?
Yavuz

Answer 1

Searching the forums I found a tip that sysman password should be the same as sys password. I wanted to check sysman's acount. Sqlplus said account locked. So I have done alter user sysman account unlock. After that I can connect with sysman via sqlplus, but after loading EM in the browser or restarting the console I am not able to connect via sqlplus as sysman because the acount is locked again. Whenever I am restarting the db console or browsing to loclahost:1158/em with or without restarting the console the sysman account is locked.If you see sysman's account has been locked and even if you unlock it, it locks again then it means enterprise manager is providing the wrong password. Sysman doesn't need to have the same password as sys, and you can change the password whenever you want. When you first create the database dbca prompts you for sys password and asks you if you want to leave the same password for all administrative accounts, including sysman, that's why someone in the forum might have thought it was a recommendation, but it isn't.
I suggest you to leave just the same password sysman had prior to this change, since this password is hashed at the sysman's configuration files and is the one it tries to use to logon to the database. In case you have forgotten the original sysman's password I suggest you this reference: http://madrid9999.googlepages.com/emhowtoresetsysmanpassword
~ Madrid
http://hrivera99.blogspot.com/