2014.12.24

今天在oracle Linux里面安装oracle 10g gridcontrol的时候报如下错误：
OPMN进程没有开启

这几乎是每个安装过oracle 10g GC都会遇到的报错，初次接触的时候还真不知道怎么解决，更不知道原理所在。经过我的总结，大部分报opmn 都是因为http服务或者进程没有起来。要么是系统没有安装httpd服务，要么是没有启动http

那么为什么要http进程是运行的呢？
答：我是这样理解的，不对之处请谅解！grid control（简称GC）它本身是一个网页形式用过oracle的监控和管理系统。所以在安装GC的时候会涉及和http交互。

解决办法：

1、可能是介质错误

2、手动的启动opmn

cd ?/OracleHomes/oms10g/opmn/bin

[oracle@zhang1 bin]$ ./opmnctl stopall

[oracle@zhang1 bin]$ ./opmnctl startall

具体的步骤：

[root@zhanglin bin]# ./opmnctl status ----查看opmn 服务的状态

in

:

.

-------------------+--------------------+---------+---------
ias-component | process-type | pid | status
-------------------+--------------------+---------+---------
DSA | DSA | N/A | Down
HTTP_Server | HTTP_Server | N/A | Down ----http进程没有起来
LogLoader | logloaderd | N/A | Down
dcm-daemon | dcm-daemon | N/A | Down
OC4J | home | 6542 | Alive
WebCache | WebCache | 6566 | Alive
WebCache | WebCacheAdmin| 6543 | Alive
[root@zhanglin bin]# /etc/init.d/httpd start ----尝试启动http
Starting httpd:
[root@zhanglin bin]# /etc/init.d/httpd stop
Stopping httpd: [ OK ]
[root@zhanglin bin]# /etc/init.d/httpd start
Starting httpd: [ OK ]
[root@zhanglin bin]# ./opmnctl startall ----再次查看opmn 但是报错
opmnctl: starting opmn and all managed processes...
================================================================================
opmn id=zhanglin.oracle.com:6200
0 of 1 processes started.
ias-instance id=EnterpriseManager0.zhanglin.oracle.com
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
ias-component/process-type/process-set:
HTTP_Server/HTTP_Server/HTTP_Server
Error
--> Process (pid=9426)
failed to start a managed process after the maximum retry limit
Log:
/u01/app/oracle/OracleHomes/oms10g/opmn/logs/HTTP_Server~1
[root@zhanglin bin]# ./opmnctl status
Processes in Instance: EnterpriseManager0.zhanglin.oracle.com
-------------------+--------------------+---------+---------
ias-component | process-type | pid | status
-------------------+--------------------+---------+---------
DSA | DSA | N/A | Down
HTTP_Server | HTTP_Server | N/A | Down -----还是没有起来
LogLoader | logloaderd | N/A | Down
dcm-daemon | dcm-daemon | N/A | Down
OC4J | home | 6542 | Alive
WebCache | WebCache | 6566 | Alive
WebCache | WebCacheAdmin | 6543 | Alive
[root@zhanglin bin]# cd /u01/app/oracle/OracleHomes/oms10g/opmn/logs/
[root@zhanglin logs]# ls
HTTP_Server~1 OC4J~home~default_island~1 opmn.log WebCache~WebCache~1
ipm.log ons.log states WebCache~WebCacheAdmin~1
[root@zhanglin logs]# tail -100 HTTP_Server~1 ----查看刚刚提示日志log
--------
14/12/23 17:16:32 Start process
--------
/u01/app/oracle/OracleHomes/oms10g/Apache/Apache/bin/apachectl start: execing httpd
/u01/app/oracle/OracleHomes/oms10g/Apache/Apache/bin/httpd: error while loading shared libraries: libdb.so.2: cannot open shared object file: No such file or directory
--------
14/12/23 17:22:56 Start process
--------
/u01/app/oracle/OracleHomes/oms10g/Apache/Apache/bin/apachectl start: execing httpd
/u01/app/oracle/OracleHomes/oms10g/Apache/Apache/bin/httpd: error while loading shared libraries: libdb.so.2: cannot open shared object file: No such file or directory
--------
14/12/23 17:47:52 Start process
--------
/u01/app/oracle/OracleHomes/oms10g/Apache/Apache/bin/apachectl start: execing httpd
/u01/app/oracle/OracleHomes/oms10g/Apache/Apache/bin/httpd: error while loading shared libraries: libdb.so.2: cannot open shared object file: No such file or directory
-----提示很明显，确实文件，其实这个只需要做个软链接，指向另外一个libdb.so.2
--------
14/12/23 17:47:54 Start process
--------
/u01/app/oracle/OracleHomes/oms10g/Apache/Apache/bin/apachectl start: execing httpd
/u01/app/oracle/OracleHomes/oms10g/Apache/Apache/bin/httpd: error while loading shared libraries: libdb.so.2: cannot open shared object file: No such file or directory
[root@zhanglin logs]# ln -s /usr/lib/libgdbm.so.2.0.0 /usr/lib/libdb.so.2 ----做一个链接指向真正的文件
[root@zhanglin logs]# cd /u01/app/oracle/OracleHomes/oms10g/opmn/bin/
[root@zhanglin bin]# ls
argus opmn opmnconfig opmnctl opmnctl.tmp opmndep
[root@zhanglin bin]# ./opmnctl startall ----再次尝试启动opmn
opmnctl: starting opmn and all managed processes...
[root@zhanglin bin]# ./opmnctl status
Processes in Instance: EnterpriseManager0.zhanglin.oracle.com
-------------------+--------------------+---------+---------
ias-component | process-type | pid | status
-------------------+--------------------+---------+---------
DSA | DSA | N/A | Down
HTTP_Server | HTTP_Server | 10280 | Alive ----起来了
LogLoader | logloaderd | N/A | Down
dcm-daemon | dcm-daemon | N/A | Down
OC4J | home | 6542 | Alive
WebCache | WebCache | 6566 | Alive
WebCache | WebCacheAdmin | 6543 | Alive
[root@zhanglin bin]#

我做过很多次，基本上上面的步骤都可以解决，而且后面可能还会报 OUI - 25031的错误，首先去查看一下opmn 的四个服务是否都起来了。一般是没有起来才会报25031。

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Oracle 10g 安装gc:OPMN Process Manager failed to start和OUI - 25031解决方案

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