监听程序无法分发客户机连接
系统：win7 64位 安装的是oracle xe11.2.0
connect sys/admin as sysdba 没有问题
connect sys/admin@XE as sysdba 提示 ORA-12518 TNS:监听程序无法分发客户机连接
Microsoft Windows [版本 6.1.7601]
版权所有 (c) 2009 Microsoft Corporation。保留所有权利。
C:\Windows\system32>sqlplus/nolog
SQL*Plus: Release 11.2.0.2.0 Production on 星期三 11月 14 22:19:26 2012
Copyright (c) 1982, 2010, Oracle. All rights reserved.
SQL> connect sys/admin@XE as sysdba
ERROR:
ORA-12518: TNS: 监听程序无法分发客户机连接
SQL> connect sys/admin as sysdba
已连接。
SQL> show parameter processes
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
aq_tm_processes integer 0
db_writer_processes integer 1
gcs_server_processes integer 0
global_txn_processes integer 1
job_queue_processes integer 0
log_archive_max_processes integer 4
processes integer 100
SQL> show parameter sessions
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
java_max_sessionspace_size integer 0
java_soft_sessionspace_limit integer 0
license_max_sessions integer 0
license_sessions_warning integer 0
sessions integer 172
shared_server_sessions integer
SQL> select count(*) from v$session;
COUNT(*)
----------
19
tnsnames.ora
XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
)
)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)
ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
)
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
)
)
listener.ora
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = E:\oraclexe\app\oracle\product\11.2.0\server)
(PROGRAM = extproc)
)
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = E:\oraclexe\app\oracle\product\11.2.0\server)
(PROGRAM = extproc)
)
(SID_DESC =
(SID_NAME = XE)
(ORACLE_HOME = E:\oraclexe\app\oracle\product\11.2.0\server)
(PROGRAM = XE)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
)
)
DEFAULT_SERVICE_LISTENER = (XE)
请问哪里需要修改？
[解决办法]
增大PROCESSES参数试试看,注意修改PROCESSES后需要重启数据库.
alter system set PROCESSES=300 scope=spfile;
[解决办法]
监听有问题吧。把监听重启一下44
lsnrctl stop
lsnrctl start
[解决办法]
修改了PROCESSES参数并重启，还是不行。
SQL> startup;
ORACLE 例程已经启动。
Total System Global Area 1071333376 bytes
Fixed Size 1388352 bytes
Variable Size 620757184 bytes
Database Buffers 444596224 bytes
Redo Buffers 4591616 bytes
数据库装载完毕。
数据库已经打开。
SQL> show parameter processes
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
aq_tm_processes integer 0
db_writer_processes integer 1
gcs_server_processes integer 0
global_txn_processes integer 1
job_queue_processes integer 0
log_archive_max_processes integer 4
processes integer 300
SQL> connect sys/admin@XE as sysdba
ERROR:
ORA-12518: TNS: 监听程序无法分发客户机连接
警告: 您不再连接到 ORACLE。
[解决办法]
学习一下，弱弱的问一句：session 也要查一查吧
查进程数 SQL> select count(*) from v$session;
1.connect sys/test as sysdba
2.show parameters dispatchers;
NAME TYPE VALUE
dispatchers string (protocol=tcp)(service=oracle10xdb) max_dispatchers integer
3.SQL>alter system set dispatchers = '(protocol=tcp)(dispatchers=3(service=oracle10xdb)';
[解决办法]
监听和TNS配置有问题，删除所有监听和TNS配置文件后
用NETCA工具配置并且测试
[解决办法]
请问具体要删除哪几个文件，另外XE怎么运行NETCA？
[解决办法]
检查一下监听文件和配置文件有问题。
[解决办法]
1、重启监听服务是否可以，不行则进行第二步
2、重新配置文件
[解决办法]
监听文件和配置文件我1楼发的有，能具体指明哪里有问题么？