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我们在同一个 tomcat 服务器上部署了三个应用程序 A、B 和 C。在 A 到 B(REST CALL)之间发生了一个 HTTP 调用,从 B 到 C 发生了另一个 http 调用(REST CALL)

我们最初使用同步 HTTP 调用,最近我们将代码更改为异步调用。我们已经将 HttpAsyncClients 用于(应用程序 A 调用应用程序 B)和(应用程序 B 调用应用程序 C)..

我们收到间歇性的 org.apache.http.ConnectionClosedException:有时我们在应用程序 A(Async Client to B)的日志中遇到此异常,有时在 Application B(Async Client to C)的日志中收到此异常

 CloseableHttpAsyncClient  client = HttpAsyncClients.custom()
                    .setMaxConnPerRoute(100))
                    .setMaxConnTotal(config.getInt(150)).build();

对于每个请求,我们都给出了超时

final RequestConfig params = RequestConfig.custom().setConnectTimeout(300000) // 5min
                    .setSocketTimeout(300000).setConnectionRequestTimeout(300000).build();

请在下面找到堆栈跟踪:

   org.apache.http.ConnectionClosedException: Connection closed
        at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.endOfInput(HttpAsyncRequestExecutor.java:344) [httpcore-nio-4.4.5.jar:4.4.5]
        at org.apache.http.impl.nio.DefaultNHttpClientConnection.consumeInput(DefaultNHttpClientConnection.java:261) [httpcore-nio-4.4.5.jar:na]
        at org.apache.http.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:81) [httpasyncclient-4.1.2.jar:na]
        at org.apache.http.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:39) [httpasyncclient-4.1.2.jar:na]
        at org.apache.http.impl.nio.reactor.AbstractIODispatch.inputReady(AbstractIODispatch.java:114) [httpcore-nio-4.4.5.jar:4.4.5]
        at org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:162) [httpcore-nio-4.4.5.jar:4.4.5]
        at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:337) [httpcore-nio-4.4.5.jar:4.4.5]
        at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:315) [httpcore-nio-4.4.5.jar:4.4.5]
        at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:276) [httpcore-nio-4.4.5.jar:4.4.5]
        at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:104) [httpcore-nio-4.4.5.jar:4.4.5]
        at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:588) [httpcore-nio-4.4.5.jar:4.4.5]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_60]

请注意,这个问题不是 与 httpasynclient stacj 跟踪完全不同的间歇性 ConnectionClosedException 的重复。如果这个问题是间歇性发生的。

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