Oracle 11g具有幻像连接

Question

我的机器本地安装了11g(Windows 7 64位).

当我从oracle断开所有客户端时(即没有运行sqlplus,没有运行weblogic)然后使用sqlplus重新连接并运行以下脚本:

SQL> set linesize 120
SQL> SELECT            s.sid,
  2                    s.serial#,
  3                    s.username,
  4                    s.program
  5    from v$session s
  6    where username is not null;
       SID    SERIAL# USERNAME                       PROGRAM
---------- ---------- ------------------------------ ----------------------------------------------------------------
       134      11274 FOO                         ORACLE.EXE (J000) <-- I want to remove this connection
       139      19140 MYADMIN                        sqlplus.exe       <-- My connection
       155       8941 FOO                         ORACLE.EXE (J001) <-- I want to remove this connection
SQL>

所以我试图以编程方式删除我用蓝色标记的连接.

我使用以下内容:

SQL> ALTER SYSTEM DISCONNECT SESSION  134,11274  IMMEDIATE;
ALTER SYSTEM DISCONNECT SESSION  134,11274  IMMEDIATE
                                 *
ERROR at line 1:
ORA-00026: missing or invalid session ID

这不是正确的方法吗？我也试过了

ALTER SYSTEM DISCONNECT SESSION  '134,11274'  IMMEDIATE;

当我再次尝试运行上面的内容时,我会收到错误消息:

SQL> ALTER SYSTEM DISCONNECT SESSION  '134,11274'  IMMEDIATE;
ALTER SYSTEM DISCONNECT SESSION  '134,11274'  IMMEDIATE
*
ERROR at line 1:
ORA-00031: session marked for kill

所以连接似乎并没有真正消失.

我希望有一个脚本强制所有'FOO'连接被终止,以便我的构建将正常运行.但我的脚本不起作用.你有什么想法？我可以摆脱连接的唯一可靠方法是重启.停止和启动服务有时会起作用 - 但并非总是如此 - 这真的很奇怪.

这是我最终希望能够运行的PL/SQL脚本.

SET SERVEROUTPUT ON 
SET LINESIZE 120
DECLARE
   theKillCmd VARCHAR2(1000);

   PROCEDURE msg(msg VARCHAR2) AS 
   BEGIN
        DBMS_OUTPUT.PUT_LINE(msg);
   END;


BEGIN

msg(' . ');
msg(' . ');
msg('Killing extraneous sessions.');
msg(' . ');
msg(' . ');

for conn in (SELECT    s.sid,
         s.serial#,
         s.username,
         s.program
  FROM   v$session s
  WHERE s.USERNAME IS NOT NULL) 
loop

  msg( '.     ' || conn.sid || ' ' || conn.serial# || ' ' ||  conn.username || ' ' || conn.program );
  IF (conn.username = 'FOO') THEN
     -- Following asks client process to kill itself
     -- theKillCmd := 'ALTER SYSTEM KILL SESSION ''' ||  conn.sid || ',' || conn.serial# || ''' IMMEDIATE ';
     -- Following tells server to kill process 
     theKillCmd := 'ALTER SYSTEM DISCONNECT SESSION ' ||  conn.sid || ',' || conn.serial# || ' IMMEDIATE ';
     msg( '.           ' || 'Killing connection using command : ' || theKillCmd );
     EXECUTE IMMEDIATE theKillCmd ;
  ELSE
     msg('.           Ignoring .. ');
  END IF;

end loop;


END;
/

-- exit;

因此,如果任何人有任何想法,将不胜感激.

我想知道是否可能以某种方式破坏了oracle安装 - 我不想再去安装 - 我宁愿在运行ant oracle之前有一个脚本只能杀死oracle连接.

Answer 1

Jnnn(J000和J001)语法表明它是"作业队列从属进程".如果你杀了它,调度程序可能只是重新启动它.

查看相应的DBMS_JOB或DBMS_SCHEDULER API.