redis连接报错 各位大侠们帮我看看

 java通过predixy连接redis集群，工作一段时间后就报ERR server connection close
ERROR c.z.d.p.m.s.c.CollectInletCallback       - CollectInletCallback [getRedisMsgTrackEntity] error: 
org.springframework.data.redis.RedisSystemException: Error in execution; nested exception is io.lettuce.core.RedisCommandExecutionException: ERR server connection close
        at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:54)
        at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:52)
        at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:41)
        at org.springframework.data.redis.PassThroughExceptionTranslationStrategy.translate(PassThroughExceptionTranslationStrategy.java:44)
        at org.springframework.data.redis.FallbackExceptionTranslationStrategy.translate(FallbackExceptionTranslationStrategy.java:42)
        at org.springframework.data.redis.connection.lettuce.LettuceConnection.convertLettuceAccessException(LettuceConnection.java:257)
        at org.springframework.data.redis.connection.lettuce.LettuceStringCommands.convertLettuceAccessException(LettuceStringCommands.java:718)
        at org.springframework.data.redis.connection.lettuce.LettuceStringCommands.get(LettuceStringCommands.java:63)
        at org.springframework.data.redis.connection.DefaultedRedisConnection.get(DefaultedRedisConnection.java:210)
        at org.springframework.data.redis.core.DefaultValueOperations$1.inRedis(DefaultValueOperations.java:52)
        at org.springframework.data.redis.core.AbstractOperations$ValueDeserializingRedisCallback.doInRedis(AbstractOperations.java:59)
        at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:224)
        at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:184)
        at org.springframework.data.redis.core.AbstractOperations.execute(AbstractOperations.java:95)
        at org.springframework.data.redis.core.DefaultValueOperations.get(DefaultValueOperations.java:48)
        at com.zgys.devicemanagement.common.redis.RedisInterface.get(RedisInterface.java:129)
        at com.zgys.devicemanagement.msgtracking.service.impl.DeviceMsgTrackingServiceImpl.getRedisMsgTrack(DeviceMsgTrackingServiceImpl.java:89)
        at com.zgys.devicemanagement.msgtracking.service.impl.DeviceMsgTrackingServiceImpl$$FastClassBySpringCGLIB$$1f7cadb7.invoke(<generated>)
        at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
        at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:685)
        at com.zgys.devicemanagement.msgtracking.service.impl.DeviceMsgTrackingServiceImpl$$EnhancerBySpringCGLIB$$f1cd029f.getRedisMsgTrack(<generated>)
        at com.zgys.devicemanagement.protocol.mqtt.service.callback.CollectInletCallback.getRedisMsgTrackEntity(CollectInletCallback.java:202)
        at com.zgys.devicemanagement.protocol.mqtt.service.callback.CollectInletCallback.messageArrived(CollectInletCallback.java:89)
        at org.eclipse.paho.client.mqttv3.internal.CommsCallback.deliverMessage(CommsCallback.java:499)
        at org.eclipse.paho.client.mqttv3.internal.CommsCallback.handleMessage(CommsCallback.java:402)
        at org.eclipse.paho.client.mqttv3.internal.CommsCallback.run(CommsCallback.java:206)
        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$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:748)
Caused by: io.lettuce.core.RedisCommandExecutionException: ERR server connection close
        at io.lettuce.core.protocol.AsyncCommand.completeResult(AsyncCommand.java:118)
        at io.lettuce.core.protocol.AsyncCommand.complete(AsyncCommand.java:109)
        at io.lettuce.core.protocol.CommandHandler.complete(CommandHandler.java:601)
        at io.lettuce.core.protocol.CommandHandler.decode(CommandHandler.java:559)
        at io.lettuce.core.protocol.CommandHandler.channelRead(CommandHandler.java:511)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
        at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
        at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
        at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1434)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:965)
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163)
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:645)
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:580)
        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:497)
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:459)
        at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:886)
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
        ... 1 common frames omitted