Home > Database > Mysql Tutorial > Oracle Database 11gR2 OEM故障排除案例

Oracle Database 11gR2 OEM故障排除案例

WBOY
Release: 2016-06-07 16:08:44
Original
1316 people have browsed it

Oracle Database 11gR2 OEM故障排除案例

客户的OEM出现故障,打开登录页面显示如下:

Oracle Database 11gR2 OEM故障排除案例

查看数据库状态与服务都是正常的。
解决问题最好的办法当然是查看后台日志报了什么错,EM的日志在什么地方呢?其实很明显:
[Oracle@dm01db01 trace]$ emctl status dbconsole
Oracle Enterprise Manager 11g Database Control Release 11.2.0.4.0
Copyright (c) 1996, 2013 Oracle Corporation.  All rights reserved.
https://xxx:1158/em/console/aboutApplication
Oracle Enterprise Manager 11g is running.
------------------------------------------------------------------
Logs are generated in directory /u01/app/oracle/product/11.2.0.4/dbhome_1/dm01db01_tequdb/sysman/log

    启动、查看em状态的时候,,最后一行都会限制OEM日志的位置,切换到日志目录,例如:
total 98016
-rw-r----- 1 oracle oinstall  3578020 Feb  9 21:07 emagentfetchlet.log
-rw-r----- 1 oracle oinstall  3578020 Feb  9 21:07 emagentfetchlet.trc
-rw-r----- 1 oracle oinstall    16736 Feb  9 21:06 emagent.log
-rw-r----- 1 oracle oinstall  426000 Feb  9 21:10 emagent_perl.trc
-rw-r----- 1 oracle oinstall  1247726 Feb  9 21:14 emagent.trc
-rw-r----- 1 oracle oinstall  4194367 Feb  8 21:01 emagent.trc.1
-rw-r----- 1 oracle oinstall    1302 Feb  7 17:14 emctl.msg
-rw-r----- 1 oracle oinstall  544351 Feb  9 21:35 emdb.nohup
-rw-r----- 1 oracle oinstall        0 Jul 29  2014 emdctl.log
-rw-r----- 1 oracle oinstall    14412 Feb  9 21:02 emdctl.trc
-rw-r----- 1 oracle oinstall 15773411 Feb  9 21:11 emoms.log
-rw-r----- 1 oracle oinstall 20001650 Feb  9 16:44 emoms.log.1
-rw-r----- 1 oracle oinstall  720617 Feb  9 21:11 emoms.trc
-rw-r----- 1 oracle oinstall  5000504 Feb  9 20:51 emoms.trc.1
-rw-r----- 1 oracle oinstall  5003162 Feb  9 09:14 emoms.trc.10
-rw-r----- 1 oracle oinstall  5001267 Feb  9 19:31 emoms.trc.2
-rw-r----- 1 oracle oinstall  5003639 Feb  9 18:09 emoms.trc.3
-rw-r----- 1 oracle oinstall  5000450 Feb  9 16:45 emoms.trc.4
-rw-r----- 1 oracle oinstall  5000447 Feb  9 15:38 emoms.trc.5
-rw-r----- 1 oracle oinstall  5002270 Feb  9 14:32 emoms.trc.6
-rw-r----- 1 oracle oinstall  5002974 Feb  9 13:12 emoms.trc.7
-rw-r----- 1 oracle oinstall  5000153 Feb  9 11:53 emoms.trc.8
-rw-r----- 1 oracle oinstall  5000000 Feb  9 10:34 emoms.trc.9
-rw-r----- 1 oracle oinstall        0 Jul 29  2014 nfsPatchPlug.log
drwxr----- 2 oracle oinstall    4096 Jul 29  2014 pafLogs/
-rw-r----- 1 oracle oinstall        0 Jul 29  2014 patchAgtStPlugin.log
-rw-r----- 1 oracle oinstall    10591 Jul 29  2014 secure.log

    其中emoms.log记录了OEM大部分的日志,查看该日志发现如下报错:
......
2015-02-09 20:29:14,242 [HTTPThreadGroup-10] WARN  jdbc.ConnectionCache _getConnection.353 - Got a fatal exeption when getting a connection; Error code = 17002; Cleaning        up cache and retrying
2015-02-09 20:29:14,242 [HTTPThreadGroup-10] ERROR conn.ConnectionService verifyRepositoryEx.891 - Invalid Connection Pool. ERROR = Io exception: Unknown host specified
2015-02-09 20:29:14,243 [HTTPThreadGroup-10] WARN  jdbc.ConnectionCache _getConnection.352 - Io exception: Unknown host specified
java.sql.SQLException: Io exception: Unknown host specified
 ......

    报错非常的明显,host不能被解析,这里的host指的应该是scan-name,尝试ping 和nslookup 都失败,后来得知是客户的DNS服务器出现故障,于是将scan-name对应的其中一个IP临时的加到/etc/hosts文件中,重启oem即恢复正常。

另外有关OEM的配置文件存放在$ORACLE_HOME/sysman/config目录下。

--end--

本文永久更新链接地址

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template