[o.e.t.OutboundHandler ] [1594189810000598832] send message failed [channel: Netty4TcpChannel{localAddress=/127.0.0.1:29405, remoteAddress=/127.0.0.1:37989}] java.lang.NullPointerException: null at org.elasticsearch.common.io.stream.StreamOutput.writeString(StreamOutput.java:373) ~[elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.common.io.stream.StreamOutput.lambda$static$11(StreamOutput.java:644) ~[elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.common.io.stream.StreamOutput.writeGenericValue(StreamOutput.java:744) ~[elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.search.aggregations.metrics.scripted.InternalScriptedMetric.doWriteTo(InternalScriptedMetric.java:67) ~[elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.search.aggregations.InternalAggregation.writeTo(InternalAggregation.java:118) ~[elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.common.io.stream.StreamOutput.writeNamedWriteable(StreamOutput.java:996) ~[elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.common.io.stream.StreamOutput.writeNamedWriteableList(StreamOutput.java:1096) ~[elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.search.aggregations.InternalAggregations.writeTo(InternalAggregations.java:164) ~[elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.search.query.QuerySearchResult.writeToNoId(QuerySearchResult.java:338) ~[elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.search.query.QuerySearchResult.writeTo(QuerySearchResult.java:319) ~[elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.transport.OutboundMessage.writeMessage(OutboundMessage.java:70) ~[elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.transport.OutboundMessage.serialize(OutboundMessage.java:53) ~[elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.transport.OutboundHandler$MessageSerializer.get(OutboundHandler.java:107) ~[elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.transport.OutboundHandler$MessageSerializer.get(OutboundHandler.java:93) ~[elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.transport.OutboundHandler$SendContext.get(OutboundHandler.java:140) [elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.transport.OutboundHandler.internalSendMessage(OutboundHandler.java:78) [elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.transport.OutboundHandler.sendMessage(OutboundHandler.java:70) [elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.transport.TcpTransport.sendResponse(TcpTransport.java:755) [elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.transport.TcpTransport.sendResponse(TcpTransport.java:739) [elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.transport.TcpTransportChannel.sendResponse(TcpTransportChannel.java:64) [elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.transport.TaskTransportChannel.sendResponse(TaskTransportChannel.java:54) [elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.action.support.ChannelActionListener.onResponse(ChannelActionListener.java:47) [elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.action.support.ChannelActionListener.onResponse(ChannelActionListener.java:30) [elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.search.SearchService$2.onResponse(SearchService.java:448) [elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.search.SearchService$2.onResponse(SearchService.java:444) [elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.search.SearchService$4.doRun(SearchService.java:1196) [elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) [elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.common.util.concurrent.TimedRunnable.doRun(TimedRunnable.java:41) [elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:751) [elasticsearch-6.8.2.jar:6.8.2] at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) [elasticsearch-6.8.2.jar:6.8.2] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?] at java.lang.Thread.run(Thread.java:834) [?:?]
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