Oracle solve the problem of slow login

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Original starting
http://anforen.com/wp/2018/04/oracle_login_slowly/

the Oracle with PL / SQL login, particularly slow, more than three minutes, if previously normal, and troubleshoot pressing the frequently asked questions, did not find the problem, and that can be checked what
listener.log this file, listener.org general path: $ ORACLE_HOME \ diag \ tnslsnr \ machine name \ listener \ trace
after I change the file name, you can normally logged. The original file, there are more than 4G, no wonder slow.
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found, you can log in normally, you can delete these files. Before you modify the file name, is thinking about the event can not log on, you can revert back.


G: \ app \ Administrator \ diag \ tnslsnr \ kings-ora \ listener \ trace