Ora-12535错误的处理

原因：

⒈网络不通

⒉客户端和服务器之间有防火墙

我的问题出在服务器的防火墙，xp自带的防火墙，只要在防火墙的例外添加1521断口规则就可以了

首先，ping数据库服务器的ip，通，物理链路上没有问题，

C:/>ping 192.168.0.55

Pinging 192.168.0.55 with 32 bytes of data:

Reply from 192.168.0.55: bytes=32 time<1ms TTL=128

Reply from 192.168.0.55: bytes=32 time<1ms TTL=128

Reply from 192.168.0.55: bytes=32 time<1ms TTL=128

Reply from 192.168.0.55: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.0.55:

    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

    Minimum = 0ms, Maximum = 0ms, Average = 0ms

查看本机通信

C:/>ping 192.168.0.55

Pinging 192.168.0.55 with 32 bytes of data:

Reply from 192.168.0.55: bytes=32 time<1ms TTL=128

Reply from 192.168.0.55: bytes=32 time<1ms TTL=128

Reply from 192.168.0.55: bytes=32 time<1ms TTL=128

Reply from 192.168.0.55: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.0.55:

    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

    Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:/>netstat -an

Active Connections

  Proto  Local Address          Foreign Address        State

  TCP    0.0.0.0:135            0.0.0.0:0              LISTENING

  TCP    0.0.0.0:445            0.0.0.0:0              LISTENING

  TCP    0.0.0.0:1046           0.0.0.0:0              LISTENING

  TCP    0.0.0.0:1110           0.0.0.0:0              LISTENING

  TCP    0.0.0.0:1521           0.0.0.0:0              LISTENING

  TCP    0.0.0.0:1925           0.0.0.0:0              LISTENING

  TCP    0.0.0.0:1929           0.0.0.0:0              LISTENING

  TCP    0.0.0.0:3260           0.0.0.0:0              LISTENING

  TCP    0.0.0.0:3261           0.0.0.0:0              LISTENING

  TCP    0.0.0.0:4400           0.0.0.0:0              LISTENING

  TCP    0.0.0.0:19780          0.0.0.0:0              LISTENING

  TCP    127.0.0.1:1030         0.0.0.0:0              LISTENING

  TCP    127.0.0.1:1030         127.0.0.1:1031         ESTABLISHED

  TCP    127.0.0.1:1031         127.0.0.1:1030         ESTABLISHED

  TCP    127.0.0.1:1034         0.0.0.0:0              LISTENING

  TCP    127.0.0.1:1087         127.0.0.1:1110         CLOSE_WAIT

  TCP    127.0.0.1:1110         127.0.0.1:1132         TIME_WAIT

  TCP    127.0.0.1:1110         127.0.0.1:3118         ESTABLISHED

  TCP    127.0.0.1:1110         127.0.0.1:3143         ESTABLISHED

  TCP    127.0.0.1:1110         127.0.0.1:3766         ESTABLISHED

  TCP    127.0.0.1:1110         127.0.0.1:4513         ESTABLISHED

  TCP    127.0.0.1:1117         127.0.0.1:1110         TIME_WAIT

  TCP    127.0.0.1:1125         127.0.0.1:1110         CLOSE_WAIT

  TCP    127.0.0.1:1892         127.0.0.1:1110         CLOSE_WAIT

  TCP    127.0.0.1:3118         127.0.0.1:1110         ESTABLISHED

  TCP    127.0.0.1:3143         127.0.0.1:1110         ESTABLISHED

  TCP    127.0.0.1:3766         127.0.0.1:1110         ESTABLISHED

  TCP    127.0.0.1:3998         127.0.0.1:1110         CLOSE_WAIT

  TCP    127.0.0.1:4105         127.0.0.1:1110         CLOSE_WAIT

  TCP    127.0.0.1:4115         127.0.0.1:1110         CLOSE_WAIT

  TCP    127.0.0.1:4169         127.0.0.1:1110         CLOSE_WAIT

  TCP    127.0.0.1:4458         127.0.0.1:1110         CLOSE_WAIT

  TCP    127.0.0.1:4513         127.0.0.1:1110         ESTABLISHED

  TCP    127.0.0.1:4623         127.0.0.1:1110         CLOSE_WAIT

 察看监听器

C:/>lsnrctl status

LSNRCTL for 32-bit Windows: Version 9.0.1.1.1 - Production on 16-7月 -2008 15:27

:13

Copyright (c) 1991, 2001, Oracle Corporation.  All rights reserved.

正在连接到 (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=zhu)(PORT=1521)))

LISTENER 的 STATUS

------------------------

别名                      LISTENER

版本                      TNSLSNR for 32-bit Windows: Version 9.0.1.1.1 - Produc

tion

启动日期                  16-7月 -2008 08:22:32

正常运行时间              0 天 7 小时 4 分 41 秒

跟踪级别                  off

安全性                    OFF

SNMP                      OFF

监听器参数文件          d:/oracle/ora90/network/admin/listener.ora

监听器日志文件          d:/oracle/ora90/network/log/listener.log

监听端点概要...

  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=zhu)(PORT=1521)))

服务摘要..

服务 "PLSExtProc" 包含 1 个例程。

  例程 "PLSExtProc", 状态 UNKNOWN, 包含此服务的 1 个处理程序...

命令执行成功

TNSping    TNS解析

C:/>tnsping orcl

TNS Ping Utility for 32-bit Windows: Version 9.0.1.1.1 - Production on 16-7月 -2

008 15:33:05

Copyright (c) 1997 Oracle Corporation.  All rights reserved.

已使用的参数文件:

d:/oracle/ora90/network/admin/sqlnet.ora

d:/oracle/ora90/network/admin/tnsnames.ora

已使用 TNSNAMES 适配器来解析别名

Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)

(HOST = 192.168.0.55)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = ORCL)))

TNS-12535: TNS: 操作超时

解析不成功，TNS。

Sql*plus

SQL> conn system/[email protected]

ERROR：

ORA-12535: TNS: 操作超时

警告: 您不再连接到 ORACLE。

SQL>

在服务器上找到sqlnet.log

位置：oracle_home/Db_1/network/log/sqlnet

***********************************************************************

Fatal NI connect error 12638, connecting to:

 (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))

  VERSION INFORMATION:

       TNS for 32-bit Windows: Version 10.1.0.2.0 - Production

       Oracle Bequeath NT Protocol Adapter for 32-bit Windows: Version 10.1.0.2.0 - Production

  Time: 15-7月 -2008 15:22:21

  Tracing not turned on.

  Tns error struct:

    ns main err code: 12638

    TNS-12638: Credential retrieval failed

    ns secondary err code: 0

    nt main err code: 0

    nt secondary err code: 0

nt OS err code: 0

确定问题出在TNS上，就可以查看具体是在防火墙屏蔽了1521还是IP被人改过

★查找问题时候发现用

lsnrctl status

命令可以知道机器运行多久了。

这是一片更细的处理这个问题的方法，我只经历这一种障碍也紧谈谈自己的处理方法

http://hi.baidu.com/snoworld/blog/item/d339b3354270558aa61e12f7.html