我有一个客户端 - 服务器分层架构,客户端向服务器发出RPC类请求。我使用Tomcat托管servlet,并使用Apache HttpClient向它发出请求。BindException:地址已在客户端套接字上使用?
我的代码是这样的:
private static final HttpConnectionManager CONN_MGR = new MultiThreadedHttpConnectionManager();
final GetMethod get = new GetMethod();
final HttpClient httpClient = new HttpClient(CONN_MGR);
get.getParams().setCookiePolicy(CookiePolicy.IGNORE_COOKIES);
get.getParams().setParameter(HttpMethodParams.USER_AGENT, USER_AGENT);
get.setQueryString(encodedParams);
int responseCode;
try {
responseCode = httpClient.executeMethod(get);
} catch (final IOException e) {
...
}
if (responseCode != 200)
throw new Exception(...);
String responseHTML;
try {
responseHTML = get.getResponseBodyAsString(100*1024*1024);
} catch (final IOException e) {
...
}
return responseHTML;
它在轻负载环境下的伟大工程,但是当我在做每秒数百个请求,我开始看到这一点 -
Caused by: java.net.BindException: Address already in use
at java.net.PlainSocketImpl.socketBind(Native Method)
at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:336)
at java.net.Socket.bind(Socket.java:588)
at java.net.Socket.<init>(Socket.java:387)
at java.net.Socket.<init>(Socket.java:263)
at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:80)
at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:122)
at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)
at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)
at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)
有关如何解决此问题的任何想法?我猜这是与客户端试图重用短暂客户端端口有关,但为什么会发生这种情况/我该如何解决它? 谢谢!
每个主机:2,最大:20。在世界范围内,我能如何超过任何套接字限制与这种保守的默认值......:-p – 2009-12-30 02:42:34