Question

尝试配置dblink我使用db Oracle在SUSE中损坏了oracle侦听器，撤消了对文件listener.ora和tnsnames.ora所做的更改，但是它没有用，然后我重新启动了计算机并使用了lsnrctl状态

Connecting to (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.3.250) (PORT = 1521)))
TNS-12541: TNS: no listener
 TNS-12560: TNS: protocol adapter error
  TNS-00511: No listener
   Linux Error: 111: Connection refused
Connecting to (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC) (KEY = EXTPROC1521)))
TNS-12541: TNS: no listener
 TNS-12560: TNS: protocol adapter error
  TNS-00511: No listener
   Linux Error: 111: Connection refused

我知道，如果我将所有内容保持原样，LISTENER应该会自动启动并且没有问题。

现在我使用了$ ORACLE_HOME / bin / lsnrctl start LISTENER

STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.2.0 - Production
Start Date 07-JAN-2019 20:35:42
Uptime 0 days 0 hr. 0 min. 0 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /opt/oracle/product/11gR2/db/network/admin/listener.ora
Listener Log File /opt/oracle/diag/tnslsnr/srvbdlnx/listener/alert/log.xml
Listening Endpoints Summary ...
  (DESCRIPTION = (ADDRESS = (PROTOCOL = tcp) (HOST = 192.168.3.250) (PORT = 1521)))
  (DESCRIPTION = (ADDRESS = (PROTOCOL = ipc) (KEY = EXTPROC1521)))
The listener supports no services
The command completed successfully

然后我重新启动了LISTENER，显然正在监听：

Listening Endpoints Summary ...
  (DESCRIPTION = (ADDRESS = (PROTOCOL = tcp) (HOST = 192.168.3.250) (PORT = 1521)))
  (DESCRIPTION = (ADDRESS = (PROTOCOL = ipc) (KEY = EXTPROC1521)))
Services Summary ...
Service "app" has 1 instance (s).
  Instance "app", status READY, has 1 handler (s) for this service ...
Service "appXDB" has 1 instance (s).
  Instance "app", status READY, has 1 handler (s) for this service ...
The command completed successfully

但是当我尝试远程登录应用程序时，它不起作用：

ORA-12537:TNS:connection closed

修改数据库中的local_listener参数，但该参数不起作用。

alter system set local_listener='(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.3.250)(PORT=1521))';

数据库正在运行，因为我可以在控制台的sqlplus中以SYSTEM用户身份登录。

我的listener.ora文件：

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.3.250) (PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC) (KEY = EXTPROC1521))
    )
  )

ADR_BASE_LISTENER = /opt/oracle

tnsnames.ora

APP =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.3.250) (PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = app)
    )
  )

我修改的文件中是否缺少某些内容？由于我对这些文件所做的修改，可能发生了什么变化？我还可以使用其他哪些命令查看更多错误？

我是新来的，谢谢。

Answer 1

由于某些原因，当我修改这些文件时，它们更改了/var/tmp/.oracle目录的权限，这是由于Oracle用户无法停止侦听器而被发现的。

# chown -R oracle:oinstall .oracle
# chmod -R 01777 .oracle

侦听器不支持任何服务-连接已关闭

1 个答案: