logstash.outer到elasticsearch时报错

后台elasticsearch报错信息如下  
 at org.elasticsearch.cluster.routing.allocation.AllocationService.reroute(AllocationService.java:278) ~[elasticsearch-5.5.1.jar:5.5.1]
        at org.elasticsearch.discovery.zen.NodeJoinController$JoinTaskExecutor.execute(NodeJoinController.java:458) ~[elasticsearch-5.5.1.jar:5.5.1]
        at org.elasticsearch.cluster.service.ClusterService.executeTasks(ClusterService.java:634) ~[elasticsearch-5.5.1.jar:5.5.1]
        at org.elasticsearch.cluster.service.ClusterService.calculateTaskOutputs(ClusterService.java:612) ~[elasticsearch-5.5.1.jar:5.5.1]
        at org.elasticsearch.cluster.service.ClusterService.runTasks(ClusterService.java:571) ~[elasticsearch-5.5.1.jar:5.5.1]
        at org.elasticsearch.cluster.service.ClusterService$ClusterServiceTaskBatcher.run(ClusterService.java:263) ~[elasticsearch-5.5.1.jar:5.5.1]
        at org.elasticsearch.cluster.service.TaskBatcher.runIfNotProcessed(TaskBatcher.java:150) ~[elasticsearch-5.5.1.jar:5.5.1]
        at org.elasticsearch.cluster.service.TaskBatcher$BatchedTask.run(TaskBatcher.java:188) ~[elasticsearch-5.5.1.jar:5.5.1]
        at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:569) ~[elasticsearch-5.5.1.jar:5.5.1]
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.java:247) ~[elasticsearch-5.5.1.jar:5.5.1]
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:210) ~[elasticsearch-5.5.1.jar:5.5.1]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[?:1.8.0_91]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[?:1.8.0_91]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
Caused by: org.elasticsearch.transport.NodeNotConnectedException: [jtelkvpra02][10.0.89.151:9300] Node not connected
        at org.elasticsearch.transport.TcpTransport.getConnection(TcpTransport.java:654) ~[elasticsearch-5.5.1.jar:5.5.1]
        at org.elasticsearch.transport.TcpTransport.getConnection(TcpTransport.java:116) ~[elasticsearch-5.5.1.jar:5.5.1]
        at org.elasticsearch.transport.TransportService.getConnection(TransportService.java:530) ~[elasticsearch-5.5.1.jar:5.5.1]
        at org.elasticsearch.transport.TransportService.sendRequest(TransportService.java:506) ~[elasticsearch-5.5.1.jar:5.5.1]