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/oracle@10.20.31.36:1521/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/oracle@10.20.31.36:1521/+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/oracle@10.20.31.38:1521/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
15-JAN-2013 16:43:01 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=ract1)(USER=grid))(COMMAND=status)(ARGUMENTS=64)(SERVICE=LISTENER)(VERSION=186647040)) * status * 0
15-JAN-2013 16:43:03 * (CONNECT_DATA=(SERVICE_NAME=racdb)(CID=(PROGRAM=sqlplus@ract1)(HOST=ract1)(USER=oracle))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.20.31.36)(PORT=47268)) * establish * racdb * 12518
TNS-12518: TNS:listener could not hand off client connection
TNS-12547: TNS:lost contact
TNS-12560: TNS:protocol adapter error
TNS-00517: Lost contact
Linux Error: 32: Broken pipe
15-JAN-2013 16:43:05 * service_update * racdb1 * 0
[grid@ract1 ~]$ crs_stat -t
Name Type Target State Host
------------------------------------------------------------
ora.BACKUP.dg ora....up.type ONLINE ONLINE ract1
ora.DATA.dg ora....up.type ONLINE ONLINE ract1
ora....FILE.dg ora....up.type ONLINE ONLINE ract1
ora....ER.lsnr ora....er.type ONLINE ONLINE ract1
ora....N1.lsnr ora....er.type ONLINE ONLINE ract2
ora.asm ora.asm.type ONLINE ONLINE ract1
ora.cvu ora.cvu.type ONLINE ONLINE ract2
ora.gsd ora.gsd.type OFFLINE OFFLINE
ora....network ora....rk.type ONLINE ONLINE ract1
ora.oc4j ora.oc4j.type ONLINE ONLINE ract2
ora.ons ora.ons.type ONLINE ONLINE ract1
ora.racdb.db ora....se.type ONLINE ONLINE ract1
ora....SM1.asm application ONLINE ONLINE ract1
ora....T1.lsnr application ONLINE ONLINE ract1
ora.ract1.gsd application OFFLINE OFFLINE
ora.ract1.ons application ONLINE ONLINE ract1
ora.ract1.vip ora....t1.type ONLINE ONLINE ract1
ora....SM2.asm application ONLINE ONLINE ract2
ora....T2.lsnr application ONLINE ONLINE ract2
ora.ract2.gsd application OFFLINE OFFLINE
ora.ract2.ons application ONLINE ONLINE ract2
ora.ract2.vip ora....t1.type ONLINE ONLINE ract2
ora....ry.acfs ora....fs.type ONLINE ONLINE ract1
ora.scan1.vip ora....ip.type ONLINE ONLINE ract2