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1.问题现象alert日志文件报如下错误
WARNING: inbound connection timed out (ORA-3136)
Mon Oct 20 14:33:52 2008
WARNING: inbound connection timed out (ORA-3136)
Mon Oct 20 14:34:46 2008
WARNING: inbound connection timed out (ORA-3136)
sqlnet.log中记录了如下错误:
Fatal NI connect error 12170.
VERSION INFORMATION:
TNS for Linux: Version 11.2.0.3.0 - Production
Oracle Bequeath NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production
TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production
Time: 20-OCT-2008 14:34:46
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12606
nt main err code: 0
nt secondary err code: 0
nt OS err code: 0
Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.123.103)(PORT=3124))
2.Metalink上给出了如下的解决方案
1）set INBOUND_CONNECT_TIMEOUT_<listenername>=0 in listener.ora
2）set SQLNET.INBOUND_CONNECT_TIMEOUT = 0 in sqlnet.ora of server.
3）stop and start both listener and database.
4）Now try to connect to DB and observe the behaviour
如果不重启只是进行reload也可以修改成功
通过如下方式验证是否修改成功
LSNRCTL> show inbound_connect_timeout
修改listener的inbound_connect_timeout参数的方法
方法一:
$ lsnrctl
LSNRCTL for IBM/AIX RISC System/6000: Version 11.2.0.3.0 - Production on 29-OCT-2007 10:00:57
Copyright (c) 1991, 2006, Oracle. All rights reserved.
Welcome to LSNRCTL, type "help" for information.
LSNRCTL> help
The following operations are available
An asterisk (*) denotes a modifier or extended command:
start stop status
services version reload
save_config trace spawn
change_password quit exit
set* show*
LSNRCTL> show
The following operations are available after show
An asterisk (*) denotes a modifier or extended command:
rawmode displaymode
rules trc_file
trc_directory trc_level
log_file log_directory
log_status current_listener
inbound_connect_timeout startup_waittime
snmp_visible save_config_on_stop
dynamic_registration
LSNRCTL> show inbound_connect_timeout
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
LISTENER parameter "inbound_connect_timeout" set to 60
The command completed successfully
LSNRCTL> set inbound_connect_timeout 0
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
LISTENER parameter "inbound_connect_timeout" set to 0
The command completed successfully
LSNRCTL> show inbound_connect_timeout
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
LISTENER parameter "inbound_connect_timeout" set to 0
The command completed successfully
LSNRCTL> set save_config_on_stop on #表示修改参数永久生效，否则只是临时生效，下次重启监听又还原为原来的值了
LSNRCTL> exit
方法二：
修改listener.ora文件，加入: INBOUND_CONNECT_TIMEOUT_LISTENER_NAME=0
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