有一台oracle 10g的监听莫名死掉，进行查看
select * from v$version
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bi
select status,count(*) from v$session group by status order by count(*) desc;
查看链接的session 情况
==在listener.ora 中添加
SUBSCRIBE_FOR_NODE_DOWN_EVENT_LISTENER=OFF
connect_timeout_listener=2
lsnrctl set log_status off
mv listener.log /tmp
lsnrctl set log_status on
[[email protected] archivelog]$ lsnrctl
LSNRCTL for Linux: Version 12.1.0.1.0 - Production on 20-AUG-2015 01:56:18
Copyright (c) 1991, 2013, 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 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 enable_global_dynamic_endpoint
oracle_home pid
connection_rate_limit valid_node_checking_registration
registration_invited_nodes registration_excluded_nodes
remote_registration_address
LSNRCTL> show inbound_connect_timeout
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.32.8)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SID_NAME=hongquan)))
LISTENER parameter "inbound_connect_timeout" set to 60
The command completed successfully
LSNRCTL> SET INBOUND_CONNECT_TIMEOUT 2
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
解决方案:
在Oracle Net Server tracing/logging中出现这个错误，请在sqlnet.ora中设置DIAG_ADR_ENABLED =OFF
在Listener component中出现这个错误，请在listener.ora中设置DIAG_ADR_ENABLED_ = OFF
sqlnet.ora:
SQLNET.INBOUND_CONNECT_TIMEOUT=180
listener.ora:
INBOUND_CONNECT_TIMEOUT_listener_name=120
metlink文档
ORA-609 TNS-12537 and TNS-12547 in 11g Alert.log (Doc ID 1116960.1)
Troubleshooting Guide ORA-609 : Opiodr aborting process unknown ospid (Doc ID 1121357.1)
===
[[email protected] log]# tail -f -n 300 /u01/app/oracle/product/10.2.0/db_1/network/log/sqlnet.log
Fatal NI connect error 12170.
VERSION INFORMATION:
TNS for Linux: Version 10.2.0.1.0 - Production
Oracle Bequeath NT Protocol Adapter for Linux: Version 10.2.0.1.0 - Production
TCP/IP NT Protocol Adapter for Linux: Version 10.2.0.1.0 - Production
Time: 06-AUG-2015 08:11:17
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12560
nt main err code: 505
TNS-00505: Operation timed out
nt secondary err code: 110
nt OS err code: 0
Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.2.119)(PORT=61497))
Fatal NI connect error 12547, connecting to:
(LOCAL=NO)
VERSION INFORMATION:
TNS for Linux: Version 10.2.0.1.0 - Production
Oracle Bequeath NT Protocol Adapter for Linux: Version 10.2.0.1.0 - Production
TCP/IP NT Protocol Adapter for Linux: Version 10.2.0.1.0 - Production
Time: 06-AUG-2015 11:45:49
Tracing not turned on.
Tns error struct:
ns main err code: 12547
TNS-12547: TNS:lost contact
ns secondary err code: 12560
nt main err code: 0
nt secondary err code: 0
nt OS err code: 0
====清空监听日志
echo ‘‘ >listener.log
====
$ echo -e ‘4294967338-4*1024*1024*1024‘ |bc
$ dd if=/dev/zero of=listener.log bs=2147483661 count=2
$ echo -e ‘4294967338-4*1024*1024*1024‘ |bc
[[email protected] log]# ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31559
max locked memory (kbytes, -l) 32
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 10240
cpu time (seconds, -t) unlimited
max user processes (-u) 31559
***********************************************************************
Fatal NI connect error 12170.
VERSION INFORMATION:
TNS for Linux: Version 10.2.0.1.0 - Production
Oracle Bequeath NT Protocol Adapter for Linux: Version 10.2.0.1.0 - Production
TCP/IP NT Protocol Adapter for Linux: Version 10.2.0.1.0 - Production
Time: 19-AUG-2015 11:30:30
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
***********************************************************************
Fatal NI connect error 12170.
VERSION INFORMATION:
TNS for Linux: Version 10.2.0.1.0 - Production
Oracle Bequeath NT Protocol Adapter for Linux: Version 10.2.0.1.0 - Production
TCP/IP NT Protocol Adapter for Linux: Version 10.2.0.1.0 - Production
Time: 19-AUG-2015 11:30:30
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
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
原文地址：https://www.cnblogs.com/yhq1314/p/9946584.html