使用 Apache HttpAsyncClient Beta3，当我将最多 50 个并发请求加载到各种服务器时，它似乎开始很好，我处理了大约 3000 个 url。
但是后来我碰壁了，我通过日志中的对等异常重置了这些连接。此时异步客户端只是挂起。
如果异步客户端将其作为异常传递给我的回调，那么由对等方重置的连接本身就可以了，但是我的回调代码没有被调用并且整个事情都被锁定了。
2013-02-04 13:52:14,739 ERROR org.apache.http.nio.protocol.HttpAsyncRequestExecutor (I/O dispatcher 9): http-outgoing-139 [ACTIVE] HTTP protocol exception: Connection r
eset by peer
java.io.IOException: Connection reset by peer
at sun.nio.ch.FileDispatcher.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:21)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:202)
at sun.nio.ch.IOUtil.read(IOUtil.java:175)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:243)
at org.apache.http.impl.nio.reactor.SessionInputBufferImpl.fill(SessionInputBufferImpl.java:97)
at org.apache.http.impl.nio.codecs.AbstractMessageParser.fillBuffer(AbstractMessageParser.java:115)
at org.apache.http.impl.nio.DefaultNHttpClientConnection.consumeInput(DefaultNHttpClientConnection.java:167)
at org.apache.http.impl.nio.DefaultHttpClientIODispatch.onInputReady(DefaultHttpClientIODispatch.java:125)
at org.apache.http.impl.nio.DefaultHttpClientIODispatch.onInputReady(DefaultHttpClientIODispatch.java:50)
at org.apache.http.impl.nio.reactor.AbstractIODispatch.inputReady(AbstractIODispatch.java:112)
at org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:160)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:342)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:320)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:280)
at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:106)
at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:604)
at java.lang.Thread.run(Thread.java:662)