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		<title>tcp连接过多导致监听TNS-12532 TNS-12560 TNS-00502错误</title>
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		<pubDate>Sat, 21 Jun 2025 03:17:10 +0000</pubDate>
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		<category><![CDATA[TNS-00502]]></category>
		<category><![CDATA[TNS-12532]]></category>
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<p>标题：<a href="https://www.xifenfei.com/2025/06/tns-12532-tns-12560-tns-00502.html" target="_blank">tcp连接过多导致监听TNS-12532 TNS-12560 TNS-00502错误</a></p>
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<p>数据库监听启动报TNS-12532、TNS-12560、TNS-00502错误,无法正常启动</p>
<pre class="brush: bash; title: ; notranslate">
C:\Users\Administrator&gt;lsnrctl start

LSNRCTL for 32-bit Windows: Version 11.2.0.1.0 - Production on 20-6月 -2025 22:5
6:40

Copyright (c) 1991, 2010, Oracle.  All rights reserved.

启动tnslsnr: 请稍候...

TNSLSNR for 32-bit Windows: Version 11.2.0.1.0 - Production
写入e:\app\administrator\diag\tnslsnr\WIN-3D3QHVQUU65\listener\alert\log.xml的日志信息
监听该对象时出错: (ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PARTIAL=yes)(QUEUESIZE=1))
不再监听: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=WIN-3D3QHVQUU65)(PORT=1521))
)
TNS-12532: TNS: 无效的参数
 TNS-12560: TNS: 协议适配器错误
  TNS-00502: 参数无效
   32-bit Windows Error: 22: Invalid argument

监听程序未能启动。请参阅上面的错误消息...

TNS-12560: TNS: 协议适配器错误
 TNS-00530: 协议适配器错误
  32-bit Windows Error: 55: Unknown error
</pre>
<p>尝试重建监听提示端口占用,对于这种情况,第一反应可能是数据库服务器的一些tcp链接异常.通过netstat -nao查看发现8080端口的应用占用TCP链接太多<br />
<a href="https://www.xifenfei.com/wp-content/uploads/2025/06/QQ20250621-110610.png"><img src="https://www.xifenfei.com/wp-content/uploads/2025/06/QQ20250621-110610.png" alt="QQ20250621-110610" width="576" height="922" class="alignleft size-full wp-image-11514" /></a><br />
<hr />
<a href="https://www.xifenfei.com/wp-content/uploads/2025/06/820.png"><img src="https://www.xifenfei.com/wp-content/uploads/2025/06/820.png" alt="820" width="557" height="78" class="alignleft size-full wp-image-11515" /></a><br />
<hr />
通过分析发现该tcp链接已经达到7w多个,怀疑是该问题导致监听异常,重启应用释放这些连接之后,数据库监听恢复正常.</p>
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