Connection timeout hessian proxy #2725

Hi,

it seems that a qb agent was not able to connect to the server. I do not know if this was a network issue or something in Quickbuild or so. How can this happen. Do we need to worry about something special, or was it "just" a network issue?
    java.lang.RuntimeException: Error executing grid job
        at com.pmease.quickbuild.grid.GridTaskFuture.get(GridTaskFuture.java:68)
        at com.pmease.quickbuild.grid.GridTaskFuture.get(GridTaskFuture.java:85)
        at com.pmease.quickbuild.stepsupport.SequentialStep.triggerChildren(SequentialStep.java:36)
        at com.pmease.quickbuild.stepsupport.CompositeStep.run(CompositeStep.java:97)
        at com.pmease.quickbuild.stepsupport.Step.execute(Step.java:491)
        at com.pmease.quickbuild.stepsupport.StepExecutionJob.executeStepAwareJob(StepExecutionJob.java:29)
        at com.pmease.quickbuild.stepsupport.StepAwareJob.executeBuildAwareJob(StepAwareJob.java:47)
        at com.pmease.quickbuild.BuildAwareJob.execute(BuildAwareJob.java:61)
        at com.pmease.quickbuild.grid.GridJob.run(GridJob.java:78)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
    Caused by: java.lang.RuntimeException: Error executing grid job
        at com.pmease.quickbuild.grid.GridTaskFuture.get(GridTaskFuture.java:68)
        at com.pmease.quickbuild.grid.GridTaskFuture.get(GridTaskFuture.java:85)
        at com.pmease.quickbuild.stepsupport.StepProcessJob.executeStepAwareJob(StepProcessJob.java:36)
        ... 9 more
    Caused by: com.caucho.hessian.client.HessianRuntimeException: Error connecting 'http://quickbuild:8810/service/server'
        at com.caucho.hessian.client.HessianProxy.sendRequest(HessianProxy.java:260)
        at com.caucho.hessian.client.HessianProxy.invoke(HessianProxy.java:165)
        at $Proxy17.stepUpdated(Unknown Source)
        at com.pmease.quickbuild.stepsupport.StepExecutionJob.executeStepAwareJob(StepExecutionJob.java:43)
        ... 9 more
    Caused by: java.net.ConnectException: Connection timed out: connect
        at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
        at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:75)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:157)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391)
        at java.net.Socket.connect(Socket.java:579)
        at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:378)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:473)
        at sun.net.www.http.HttpClient.<init>(HttpClient.java:203)
        at sun.net.www.http.HttpClient.New(HttpClient.java:290)
        at sun.net.www.http.HttpClient.New(HttpClient.java:306)
        at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:995)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:931)
        at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:849)
        at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1090)
        at com.caucho.hessian.client.HessianURLConnection.getOutputStream(HessianURLConnection.java:94)
        at com.caucho.hessian.client.HessianProxy.sendRequest(HessianProxy.java:258)
        ... 12 more