一数据库突然连接不上,在自己电脑上使用SQL Developer也连接不上.立即使用SecureCRT连接上了这台服务器,从下面几个方面检查. 1:检查了数据库的状态是否正常 $ sqlplus / as sysdba SQL*Plus: Release 10.2.0.5.0 - Production on Mon May 16 11:07:55 2016 Copyright (c) 1982, 2010, Oracle. All Rights Reserved. Connec…
AWS数据库云服务器出现了连接超时的错误,于是查看相关时段的alert日志,发现了如下的错误: ***********************************************************************Fatal NI connect error 12170. VERSION INFORMATION: TNS for Linux: Version 11.2.0.4.0 - Production Oracle Bequeath NT Protocol Adapt…
--同事hadoop连接oracle导入数据,界面报错,后台alert日志报错tns相关错误: *********************************************************************** Fatal NI connect error 12170. VERSION INFORMATION: TNS for Linux: Version 11.2.0.4.0 - Production Oracle Bequeath NT…
在查看alert日志的时候发现: 1 *********************************************************************** 2 3 Fatal NI connect error 12170. 4 5 VERSION INFORMATION: 6 TNS for Linux: Version 11.2.0.1.0 - Production 7 Oracle Bequeath NT Protocol Adapter for Linux: Ve…
今天在测试12c的temp_undo的时候,准备在备库上测试一下,突然发现备库使用TNS连接竟然失败. 抛出的错误如下: $ sqlplus sys/oracle@testdb as sysdba SQL*Plus: Release 12.1.0.2.0 Production on Thu Dec 8 15:30:10 2016 Copyright (c) 1982, 2014, Oracle. All rights reserved. ERROR: ORA-12514: TNS:listene…
应用程序连接测试数据库时报ORA-12516:TNS:listener could not find available handler with matching protocol stack 检查监听日志文件,发现大量的TNS-12516错误 cd /u01/app/oracle/product/10.2.0/db_1/network/log more listener.log TNS-12516: TNS:listener could not find available handler…
当你碰到ORA-12520错误时,如下所示: 英文错误提示: ORA-12520: TNS:listener could not find available handler for requested type of server 中文错误提示: ORA-12520: TNS: 监听程序无法为请求的服务器类型找到可用的处理程序 一般你应该从下面两个方面去检查出错原因并解决问题: 1:数据库是专用服务器,但是在tnsname.ora配置文件中设置的连接方式是shared,这种情况需要修改tnsn…
为了测试需要,系统管理员帮忙将一台ORACLE数据库服务器克隆到虚拟机上,我上去删除了root.oracle.tomcat账号下的crontab定时作业,然后启动了ORACLE数据库实例,删除了ORACLE下的作业,然后启动监听时报如下错误: [oracle@EGMLNX02 admin]$ lsnrctl stop LSNRCTL for Linux: Version 10.2.0.4.0 - Production on 10-MAR-2014 09:15:44 Copyright (…
检查我们的一台ORACLE数据库的监听日志发现有不少TNS-12502错误信息.如下所示 TNS-12502: TNS:listener received no CONNECT_DATA from client 09-DEC-2014 15:47:06 * (CONNECT_DATA=(SERVICE_NAME=epps)(CID=(PROGRAM=D:\Tasks\FGIS2MES\CEG\gmt_auto.exe)(HOST=CEGWEB1)(USER=cegadmin))) * (AD…
今天使用PL/SQL Developer连接到一台新的测试服务器时,遇到ORA错误:ORA-12523: TNS: 监听程序无法找到适用于客户机连接的例程.对应的监听日志文件里面错误为TNS-12523: TNS:listener could not find instance appropriate for the client connection 首先使用oerr命令查看ORA-12523错误提示的详细内容 [oracle@DB-Server admin]$ oerr ora 12523…
http://www.vitalsofttech.com/ora-12537-tnsconnection-closed/ Question: When trying to establish a sqlplus connection to the database, I get the “ORA-12537: TNS:connection closed” error message. How do I resolve this? SQL> conn vst_server/xxx@node1 ER…
java.sql.SQLException: Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descriptor The Connection descriptor used by the client was: 192.168.149.128:1521:orcl at oracle.…