tns lost contact

Listeners and TNS connections are usually the key for Oracle beginners to understand. However, if there is a problem in the actual configuration process, it will cause the Oracle connection failure. Ben Listeners and TNS connections are usually the

Today do ETL, Connection source library error, ORA-12547: TNS: Lost contact, online find the reason, there are many ways, do not know which is accurate, the production database is owned by other manufacturers at the same time,   Has anyone handled a

Today, a colleague reported an error occurred while starting the listener on the Development Server and reported the following error: LSNRCTL start LSNRCTL for Linux: Version 9.2.0.4.0-production on 06-jul-2009 14:37:59 Copyright (c) 1991,200 2,

Oracle dbca times: ORA-12547: TNS: lost contact error resolution, dbcaora-12547 Preface Recently encountered a problem in the work, the error is Oracle dbca reported error: ORA-12547: TNS: lost contact, by looking for relevant information finally

ORA-12547: TNS: lost contact error handling, ora-12547tns Nothing left to worry about. Configure the oracle database to automatically restart with the system. Check the information and find that you need to configure/etc/oratab and rc. local. The $

The recent customer email description failed to connect to the database from the client with the error code ORA-12537: TNS: connection closed, and the connection was closed. Directly through tnsping, there is no problem. The TNS-12518: TNS: listener

Running Environment: Ubuntu + Oracle 11.2.0 ORA-12547: TNS: lost contact error occurs when the command starts oracle. Good afternoon, no matter in the afternoon. If the link is invalid, it will not work after Shutdown and restart. Then google found

ORA-12537: TNS: connectionclosed ORA-12537: TNS: connection closed Error: ORA-12537: TNS: connection closed. Environment: Oracle: 11.2.0.2 OS: LINUX 5.6 Environment: RAC NODE1: 10.20.31.36 NODE2: 10.20.31.38 [Oracle @ ract1 ~] $

Use Cloning to install Oracle 11g, then use CADB to build the library error:ora-12547:tns:lost ContactFor such a not obvious mistake, it is very difficult to locate the problem of confirmation, the Internet gave a lot of advice:1, lack of bags,

Monitor startup error, report the following error:Lsnrctl startLsnrctl for linux:version 9.2.0.4.0-production on 06-jul-2009 14:37:59Copyright (c) 1991, 2002, Oracle Corporation. All rights