启监听时，报TNS-12560、TNS-00530错误

配置好listener.ora与tnsnames.ora后，执行启动监听命令后，报如下错误： [oracle@gc1 admin]$ lsnrctl start LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 25-APR-2014 23:27:57 Copyright (c) 1991, 2005, Oracle. All rights reserved. Starting /u01/app/oracle/product/10.2.0/db_1/bin/tnslsnr: please wait... TNSLSNR for Linux: Version 10.2.0.1.0 - Production System parameter file is /u01/app/oracle/product/10.2.0/db_1/network/admin/listener.ora Log messages written to /u01/app/oracle/product/10.2.0/db_1/network/log/listener.log Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=gc1)(PORT=1521))) Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=gc1)(PORT=1521))) TNS-12560: TNS:protocol adapter error  TNS-00530: Protocol adapter error   Linux Error: 113: No route to host
listener.ora与tnsnames.ora中配置内容如下： [oracle@gc1 admin]$ more listener.ora LISTENER=   (DESCRIPTION=     (ADDRESS_LIST=       (ADDRESS=(PROTOCOL=tcp)(HOST=gc1)(PORT=1521))     )   ) SID_LIST_LISTENER=   (SID_LIST=     (SID_DESC=       (SID_NAME=PROD)       (ORACLE_HOME=/u01/app/oracle/product/10.2.0/db_1)       (GLOBAL_DBNAME=PROD)     )     (SID_DESC=       (SID_NAME=EMREP)       (ORACLE_HOME=/u01/app/oracle/product/10.2.0/db_1)       (GLOBAL_DBNAME=EMREP)     )   ) LSNR2=   (DESCRIPTION=     (ADDRESS_LIST=       (ADDRESS=(PROTOCOL=tcp)(HOST=gc1)(PORT=1526))       (ADDRESS=(PROTOCOL=ipc)(KEY=extproc))     )   ) SID_LIST_LSNR2=   (SID_LIST=     (SID_DESC=       (SID_NAME=plsextproc)       (ORACLE_HOME=/u01/app/oracle/product/10.2.0/db_1)       (PROGRAM=extproc)     )   ) [oracle@gc1 admin]$ more tnsnames.ora prod=  (DESCRIPTION=   (ADDRESS= (PROTOCOL=tcp)(HOST=gc1)(PORT=1521))   (CONNECT_DATA=      (SERVICE_NAME=PROD)      (SERVER=dedicated)   )  ) prod_s=  (DESCRIPTION=   (ADDRESS= (PROTOCOL=tcp)(HOST=gc1)(PORT=1526))   (CONNECT_DATA=      (SERVICE_NAME=PROD)      (SERVER=shared)   )  ) lsnr2=  (DESCRIPTION=   (ADDRESS= (PROTOCOL=tcp)(HOST=gc1)(PORT=1526))   (CONNECT_DATA=      (SERVICE_NAME=PROD)      (SERVER=dedicated)   )  ) emrep=  (DESCRIPTION=   (ADDRESS= (PROTOCOL=tcp)(HOST=gc2)(PORT=1521))   (CONNECT_DATA=      (SERVICE_NAME=emrep)      (SERVER=dedicated)   )  ) racdb=  (DESCRIPTION=   (LOAD_BALANCE=on)   (FAILOVER=on)   (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.10)(PORT=1521))   (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.11)(PORT=1521))   (CONNECT_DATA=(SERVICE_NAME=RACDB))  ) 仔细检查这二配置文件，无语法错误。且tns文件都是使用主机名进行连接，怀疑可能/etc/hosts中ip配置有问题。 --查看/etc/hosts内容 [oracle@gc1 admin]$ vi /etc/hosts # Do not remove the following line, or various programs # that require network functionality will fail. # Do not remove the following line, or various programs # that require network functionality will fail. # Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1 node1 localhost.localdomain localhost ::1 localhost6.localdomain6 localhost6 192.168.188.116 gc1 192.168.8.115 gc2 --查看当前系统ip [root@gc1 ~]# ifconfig eth0 Link encap:Ethernet HWaddr 00:0C:29:F2:07:49           inet addr: 10.1.55.129 Bcast:10.1.55.255 Mask:255.255.255.0           inet6 addr: fe80::20c:29ff:fef2:749/64 Scope:Link           UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1           RX packets:15906 errors:0 dropped:0 overruns:0 frame:0           TX packets:2524 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000           RX bytes:1438926 (1.3 MiB) TX bytes:305470 (298.3 KiB)           Interrupt:67 Base address:0x2000 lo Link encap:Local Loopback           inet addr:127.0.0.1 Mask:255.0.0.0           inet6 addr: ::1/128 Scope:Host           UP LOOPBACK RUNNING MTU:16436 Metric:1           RX packets:414 errors:0 dropped:0 overruns:0 frame:0           TX packets:414 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:0           RX bytes:21738 (21.2 KiB) TX bytes:21738 (21.2 KiB) 这二ip不同，于是root用户修改/etc/hosts中ip地址信息，如下： [oracle@gc1 oradata]$ su - root Password: [root@gc1 ~]# vi /etc/hosts # Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1 node1 localhost.localdomain localhost ::1 localhost6.localdomain6 localhost6 # 192.168.188.116 10.1.55.129 gc1 192.168.8.115 gc2 修改保存后，再启动监听，成功 [oracle@gc1 ~]$ lsnrctl start LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 25-APR-2014 23:38:00 Copyright (c) 1991, 2005, Oracle. All rights reserved. Starting /u01/app/oracle/product/10.2.0/db_1/bin/tnslsnr: please wait... TNSLSNR for Linux: Version 10.2.0.1.0 - Production System parameter file is /u01/app/oracle/product/10.2.0/db_1/network/admin/listener.ora Log messages written to /u01/app/oracle/product/10.2.0/db_1/network/log/listener.log Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=gc1)(PORT=1521))) Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=gc1)(PORT=1521))) STATUS of the LISTENER ------------------------ Alias LISTENER Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production Start Date 25-APR-2014 23:38:00 Uptime 0 days 0 hr. 0 min. 0 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/app/oracle/product/10.2.0/db_1/network/admin/listener.ora Listener Log File /u01/app/oracle/product/10.2.0/db_1/network/log/listener.log Listening Endpoints Summary...   (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=gc1)(PORT=1521))) Services Summary... Service "EMREP" has 1 instance(s).   Instance "EMREP", status UNKNOWN, has 1 handler(s) for this service... Service "PROD" has 1 instance(s).   Instance "PROD", status UNKNOWN, has 1 handler(s) for this service... The command completed successfully

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