18-02-20 11:22:20,421 ERROR com.ethercloud.common.utils.HttpClientUtils(HttpClientUtils.java:195)
   HttpClientUtils.post() Error:http://10.0.108.74:8002/metrics/miners/70fbf05ea2d164215466cd80c5a8997858b14a5e, error code: 500
org.apache.http.client.HttpResponseException:
        at org.apache.http.impl.client.BasicResponseHandler.handleResponse(BasicResponseHandler.java:67)
        at org.apache.http.impl.client.BasicResponseHandler.handleResponse(BasicResponseHandler.java:52)
        at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:218)
        at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:160)
        at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:136)
        at com.ethercloud.common.utils.HttpClientUtils.post(HttpClientUtils.java:190)
        at com.ethercloud.common.rpc.RemoteNormalService.post(RemoteNormalService.java:35)
        at com.ethercloud.miner.rest.MiningRestService.miner_stats_report(MiningRestService.java:63)
        at sun.reflect.GeneratedMethodAccessor45.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at com.ethercloud.miner.handler.MiningClientTextHandler.dealWithMessage(MiningClientTextHandler.java:81)
        at com.ethercloud.miner.handler.MiningClientTextHandler.handleTextMessage(MiningClientTextHandler.java:60)
        at org.springframework.web.socket.handler.AbstractWebSocketHandler.handleMessage(AbstractWebSocketHandler.java:43)
        at org.springframework.web.socket.handler.WebSocketHandlerDecorator.handleMessage(WebSocketHandlerDecorator.java:75)
        at org.springframework.web.socket.handler.LoggingWebSocketHandlerDecorator.handleMessage(LoggingWebSocketHandlerDecorator.java:56)
        at org.springframework.web.socket.handler.ExceptionWebSocketHandlerDecorator.handleMessage(ExceptionWebSocketHandlerDecorator.java:58)
        at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter.handleTextMessage(StandardWebSocketHandlerAdapter.java:110)
        at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter.access$000(StandardWebSocketHandlerAdapter.java:42)
        at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter$3.onMessage(StandardWebSocketHandlerAdapter.java:81)
        at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter$3.onMessage(StandardWebSocketHandlerAdapter.java:78)
        at org.apache.tomcat.websocket.WsFrameBase.sendMessageText(WsFrameBase.java:388)
        at org.apache.tomcat.websocket.server.WsFrameServer.sendMessageText(WsFrameServer.java:110)
        at org.apache.tomcat.websocket.WsFrameBase.processDataText(WsFrameBase.java:489)
        at org.apache.tomcat.websocket.WsFrameBase.processData(WsFrameBase.java:288)
        at org.apache.tomcat.websocket.WsFrameBase.processInputBuffer(WsFrameBase.java:127)
        at org.apache.tomcat.websocket.server.WsFrameServer.onDataAvailable(WsFrameServer.java:73)
        at org.apache.tomcat.websocket.server.WsHttpUpgradeHandler.upgradeDispatch(WsHttpUpgradeHandler.java:148)
        at org.apache.coyote.http11.upgrade.UpgradeProcessorInternal.dispatch(UpgradeProcessorInternal.java:54)
        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:53)
        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Thread.java:745)