ORA - 12502 TNS:listener received no CONNECT_DATA from client

今天在检查listener.log的时候发现了一个错误:

23-MAR-2009 11:15:17 * 12502
TNS-12502: TNS:listener received no CONNECT_DATA from client
23-MAR-2009 11:17:34 * 12502
TNS-12502: TNS:listener received no CONNECT_DATA from client
23-MAR-2009 11:17:52 * 12502
TNS-12502: TNS:listener received no CONNECT_DATA from client

The error indicates that the Listener did not recieve the complete information of the connect string, it lacks the CONNECT_DATA section.
查了一下相关资料,认为有些内部连接或者一些工具的连接方式中没有包含connect_data内容,就会出现这种错误,或者说是提示警告。由于客户端没有发生任何异常连接,此问题没有频繁的出现,再此记录一下。

metalink_id:Subject: TroubleShooting Guide For ORA - 12502 TNS:listener received no CONNECT_DATA from client
Doc ID: 453505.1 Type: TROUBLESHOOTING
Modified Date : 17-NOV-2008 Status: PUBLISHED

from:

http://space.itpub.net/9252210/viewspace-576447

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