idle时间使用默认的60s，严格的按照每60s调用一次，偶发性发现服务连不上

[yinhaomin]

idle时间使用默认的60s，严格的按照每60s调用一次，偶发性发现服务连不上。
报错如下：

java.lang.reflect.UndeclaredThrowableException: null
        at com.sun.proxy.$Proxy122.helloWorld(Unknown Source)
        at com.hf.process.web.listener.PmpRpcListener.monitorPmpRpcServer(PmpRpcListener.java:74)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:65)
        at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
        at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:81)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.reflect.InvocationTargetException: null
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at com.baidu.jprotobuf.pbrpc.client.ha.HaProtobufRpcProxy.invoke(HaProtobufRpcProxy.java:375)
        at com.baidu.jprotobuf.pbrpc.spring.HaProtobufRpcProxyBean.invoke(HaProtobufRpcProxyBean.java:86)
        at com.baidu.jprotobuf.pbrpc.spring.HaRpcProxyFactoryBean.invoke(HaRpcProxyFactoryBean.java:179)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
        ... 16 common frames omitted
Caused by: java.lang.RuntimeException: Unable to validate object
        at com.baidu.jprotobuf.pbrpc.transport.ChannelPool.getChannel(ChannelPool.java:85)
        at com.baidu.jprotobuf.pbrpc.transport.RpcChannel.getConnection(RpcChannel.java:72)
        at com.baidu.jprotobuf.pbrpc.client.ProtobufRpcProxy.invoke(ProtobufRpcProxy.java:453)
        at com.sun.proxy.$Proxy126.helloWorld(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at com.baidu.jprotobuf.pbrpc.client.ha.lb.LoadBalanceProxyFactoryBean.doInvoke(LoadBalanceProxyFactoryBean.java:496)
        at com.baidu.jprotobuf.pbrpc.client.ha.lb.LoadBalanceProxyFactoryBean.invokeWithMaxTry(LoadBalanceProxyFactoryBean.java:441)
        at com.baidu.jprotobuf.pbrpc.client.ha.lb.LoadBalanceProxyFactoryBean.invoke(LoadBalanceProxyFactoryBean.java:410)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
        at com.sun.proxy.$Proxy122.helloWorld(Unknown Source)
        ... 25 common frames omitted
Caused by: java.util.NoSuchElementException: Unable to validate object
        at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:506)
        at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:363)
        at com.baidu.jprotobuf.pbrpc.transport.ChannelPool.getChannel(ChannelPool.java:79)
        ... 38 common frames omitted

[jhunters]

这种现象是有可能的， 也算正常现象。因为你的时间配置的是一致，就会有可能你刚拿到连接池对象，服务就close该链接，就会出现 这种情况。 你只要使用的是Ha的配置，会自己重试一个新的链接的

[yinhaomin]

好的，感谢回复