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HomeDatabaseMysql Tutorial修改share server参数导致数据库启动失败

修改share server参数导致数据库启动失败

Jun 07, 2016 pm 03:05 PM
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修改share server参数导致数据库启动失败 在学习共享服务时,修改配置参数时,不小心犯了错误,呵呵,以下是修复过程。 1、修改 SQL alter system set dispatchers=(protocol=tcp)(dispatchers=2) scope=spfile; 不小心写成了 SQL alter system set dis

修改share server参数导致数据库启动失败

 

在学习共享服务时,修改配置参数时,不小心犯了错误,呵呵,以下是修复过程。

1、修改

   SQL> alter  system set dispatchers=‘(protocol=tcp)(dispatchers=2)’ scope=spfile;

 不小心写成了
 
    SQL> alter  system set dispatchers=‘(protocol=tcp)9dispatchers=2)’ scope=spfile;

2、重启instance 时失败
 
  SQL> startup force

    提示:dipatchers 参数错误

  启动失败,应该是spfile文件出现了错误,spfile是二进制文件不能用编辑器直接修改,所以想用init参数文件来启动

3、在$ORACLE_HOME/dbs 下却发现没有initorac.ora 文件

  # strings spfileorac.ora  >  orac.txt
  # vi orac.txt
  # cp  orac.txt  initorac.ora

   将9dispatchers=2) 改成 (dispatchers=2)

4、因为instance启动时先调用spfile,然后才是pfile ,所以

  # mv spfileorac.ora  spfileorac.ora.bak

5、然后再启动instance ,这时会从pfile来启动
   SQL> startup nomount
   SQL> alter database  mount;
   SQL> alter database  open;

6、重新从pfile来生成spfile 
      SQL> create spfile  from pfile ;

7、重启instance,查看启动参数文件信息

   13:44:39 SYS@orac>startup
ORACLE instance started.

Total System Global Area  167772160 bytes
Fixed Size                  1218316 bytes
Variable Size              71305460 bytes
Database Buffers           92274688 bytes
Redo Buffers                2973696 bytes
Database mounted.
Database opened.
13:45:05 SYS@orac>show parameter pfile;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
spfile                               string      /u01/app/oracle/product/10.2.0
                                                 /db_1/dbs/spfileorac.ora
13:45:28 SYS@orac>select program from v$process;

至此,修复系统成功!

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