解决 Address already in use: connect 的错误
2009-04-18 20:52
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| apache httpclient与close_wait 关键字: httpclient close_wait 最近做httpclient做转发服务，发现服务器上总是有很多close_wait状态的连接，而且这些连接都不会关闭，最后导致服务器没法建立新的网络连接，从而停止响应。 后来在网上搜索了一下，发现解决的方法也很简单，如果想重用连接，那就使用连接管理器，从连接管理器里获取连接，然后定时的用连接管理器来释放空闲连接。httpclient自带了SimpleHttpConnectionManager，提供了Java代码 closeIdleConnections(long idleTimeout) closeIdleConnections(long idleTimeout) 这样的方法。 如果不需要重用链接，则直接在httpmethod创建时，设置一个http头信息就可以了 Java代码 httpmethod.setRequestHeader("Connection", "close"); httpmethod.setRequestHeader("Connection", "close"); 这样就不会有恼人的close_wait了。 |
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