lisenter更改主機(jī)名之后監(jiān)聽不到服務(wù)

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環(huán)境描述，linux redhat5.4 + oracle 11.2.0.1

主機(jī)名：zky.zhan

主機(jī)ip：192.168.214.10

實(shí)例SID：zky
                

問題展現(xiàn)

            如果將listenter.ora中監(jiān)聽地址（HOST = zky.zhan）參數(shù)更改為監(jiān)聽主機(jī)網(wǎng)絡(luò)地址（HOST = 192.168.214.10）后。發(fā)現(xiàn)服務(wù)監(jiān)聽不到服務(wù)器，一直顯示no server ，通過網(wǎng)絡(luò)服務(wù)也不能登錄到數(shù)據(jù)庫。

查看tnsname.ora參數(shù)

[oracle@zky /]$ cat /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/tnsnames.ora # tnsnames.ora Network Configuration File: /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/tnsnames.ora # Generated by Oracle configuration tools. ZKY =   (DESCRIPTION =     (ADDRESS_LIST =       (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.214.10)(PORT = 1521))     )     (CONNECT_DATA =       (SERVICE_NAME = zky)     )   )

查看listener.ora參數(shù)

我們將默認(rèn)的zky.zhan修改為ip地址

[oracle@zky /]$ cat /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora # listener.ora Network Configuration File: /u01/app/oracle/product/11.2.0/grid/network/admin/listener.ora # Generated by Oracle configuration tools. ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER1 = ON LISTENER =   (DESCRIPTION_LIST =     (DESCRIPTION = #    (ADDRESS = (PROTOCOL = TCP)(HOST = zky.zhan)(PORT = 1521))       (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.214.10)(PORT = 1521))     )   ) ADR_BASE_LISTENER = /u01/app/oracle

啟動監(jiān)聽

發(fā)現(xiàn)The listener supports no services，一直監(jiān)聽不到服務(wù)

[oracle@zky /]$ lsnrctl start LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 24-APR-2016 05:34:11 Copyright (c) 1991, 2009, Oracle.  All rights reserved. Starting /u01/app/oracle/product/11.2.0/grid/bin/tnslsnr: please wait... TNSLSNR for Linux: Version 11.2.0.1.0 - Production System parameter file is /u01/app/oracle/product/11.2.0/grid/network/admin/listener.ora Log messages written to /u01/app/oracle/diag/tnslsnr/zky/listener/alert/log.xml Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.214.10)(PORT=1521))) Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.214.10)(PORT=1521))) STATUS of the LISTENER ------------------------ Alias                     LISTENER Version                   TNSLSNR for Linux: Version 11.2.0.1.0 - Production Start Date                24-APR-2016 05:34:11 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/11.2.0/grid/network/admin/listener.ora Listener Log File         /u01/app/oracle/diag/tnslsnr/zky/listener/alert/log.xml Listening Endpoints Summary...   (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.214.10)(PORT=1521))) The listener supports no services The command completed successfully

數(shù)據(jù)庫登錄也顯示無監(jiān)聽

[oracle@zky /]$ sqlplus system/oracle_4U@zky SQL*Plus: Release 11.2.0.1.0 Production on Sun Apr 24 05:37:17 2016 Copyright (c) 1982, 2009, Oracle.  All rights reserved. ERROR: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor

解決方法
        在糾結(jié)多日之后發(fā)現(xiàn)當(dāng)使用ping主機(jī)名zky.zhan時(shí)發(fā)現(xiàn)默認(rèn)解析為127.0.0.1。于是在試探的狀態(tài)下將本地解析127.0.0.1修改為192.168.214.10后發(fā)現(xiàn)可以正常使用。

更改host

[root@zky /]# cat /etc/hosts # Do not remove the following line, or various programs # that require network functionality will fail. #127.0.0.1              zky.zhan zky localhost.localdomain localhost #::1            localhost6.localdomain6 localhost6 192.168.214.10 zky.zhan zky localhost.localdomain localhost

重啟監(jiān)聽后服務(wù)自己監(jiān)聽到了

[oracle@zky /]$ lsnrctl status LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 24-APR-2016 05:43:40 Copyright (c) 1991, 2009, Oracle.  All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.214.10)(PORT=1521))) STATUS of the LISTENER ------------------------ Alias                     LISTENER Version                   TNSLSNR for Linux: Version 11.2.0.1.0 - Production Start Date                24-APR-2016 05:34:11 Uptime                    0 days 0 hr. 9 min. 29 sec Trace Level               off Security                  ON: Local OS Authentication SNMP                      OFF Listener Parameter File   /u01/app/oracle/product/11.2.0/grid/network/admin/listener.ora Listener Log File         /u01/app/oracle/diag/tnslsnr/zky/listener/alert/log.xml Listening Endpoints Summary...   (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.214.10)(PORT=1521))) Services Summary... Service "+ASM" has 1 instance(s).   Instance "+ASM", status READY, has 1 handler(s) for this service... Service "zky" has 1 instance(s).   Instance "zky", status READY, has 1 handler(s) for this service... Service "zkyXDB" has 1 instance(s).   Instance "zky", status READY, has 1 handler(s) for this service... The command completed successfully

登錄數(shù)據(jù)庫成功

[oracle@zky /]$ sqlplus system/oracle_4U@zky SQL*Plus: Release 11.2.0.1.0 Production on Sun Apr 24 05:44:59 2016 Copyright (c) 1982, 2009, Oracle.  All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production With the Partitioning, Automatic Storage Management, OLAP, Data Mining and Real Application Testing options SQL> show parameter name NAME                                 TYPE        VALUE ------------------------------------ ----------- ------------------------------ db_file_name_convert                 string db_name                              string      zky db_unique_name                       string      zky global_names                         boolean     FALSE instance_name                        string      zky lock_name_space                      string log_file_name_convert                string service_names                        string      zky

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