ORA-12537: TNS:connection closed
报错：ORA-12537: TNS:connection closed 。
环境：
Oracle:11.2.0.2
OS：LINUX 5.6
环境：RAC
NODE1：10.20.31.36
NODE2：10.20.31.38
[oracle@ract1 ~]$ sqlplussys/[email protected]:1521/racdbas sysdba
SQL*Plus: Release 11.2.0.2.0 Production on Tue Jan 15 16:19:04 2013
Copyright (c) 1982, 2010, Oracle. All rights reserved.
ERROR:
ORA-12537: TNS:connection closed
使用同样的监听，，登陆ASM实例却可以
[oracle@ract1 ~]$ sqlplussys/[email protected]:1521/+ASMas sysdba
SQL*Plus: Release 11.2.0.2.0 Production on Tue Jan 15 16:32:29 2013
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
With the Real Application Clusters and Automatic Storage Management options
SQL>
登陆到节点二也没问题
[oracle@ract1 ~]$ sqlplussys/[email protected]:1521/racdbas sysdba
SQL*Plus: Release 11.2.0.2.0 Production on Tue Jan 15 16:33:46 2013
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
SQL>
监听的配置：
[oracle@ract1 admin]$ cat sqlnet.ora
# sqlnet.ora.ract1 Network Configuration File: /grid/product/11.2.0/network/admin/sqlnet.ora.ract1
# Generated by Oracle configuration tools.
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
ADR_BASE = /grid/app
#tcp.validnode_checking = yes
[oracle@ract1 admin]$ cat listener.ora
LISTENER=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER)))) # line added by Agent
# listener.ora.ract1 Network Configuration File: /grid/product/11.2.0/network/admin/listener.ora.ract1
# Generated by Oracle configuration tools.
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER_SCAN1 = ON
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER = ON
LISTENER_SCAN1 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = LISTENER_SCAN1))
)
)
监听状态：
[oracle@ract1 ~]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 15-JAN-2013 16:40:42
Copyright (c) 1991, 2010, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.2.0 - Production
Start Date 15-JAN-2013 16:06:59
Uptime 0 days 0 hr. 33 min. 43 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /grid/product/11.2.0/network/admin/listener.ora
Listener Log File /grid/app/diag/tnslsnr/ract1/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.20.31.36)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.20.31.37)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM1", status READY, has 1 handler(s) for this service...
Service "racdb" has 1 instance(s).
Instance "racdb1", status READY, has 1 handler(s) for this service...
Service "racdbXDB" has 1 instance(s).
Instance "racdb1", status READY, has 1 handler(s) for this service...
The command completed successfully
报ORA-12537: TNS:connection closed 时候的日志如下：
[grid@ract1 alert]$ pwd
/grid/app/diag/tnslsnr/ract1/listener/alert
[grid@ract1 alert]$ cat log.xml