[2018-07-31T14:29:41,289][WARN ][o.e.x.s.t.n.SecurityNetty4HttpServerTransport] [9rTGh-y] caught exception while handling client http traffic, closing connection [id: 0x2a6c7a87, L:/127.0.0.1:9200 - R:/127.0.0.1:57233]
java.io.IOException: 您的主機中的軟件中止了一個已建立的連接。
at sun.nio.ch.SocketDispatcher.read0(Native Method) ~[?:?]
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43) ~[?:?]
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223) ~[?:?]
at sun.nio.ch.IOUtil.read(IOUtil.java:197) ~[?:?]
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380) ~[?:?]
at io.netty.buffer.PooledHeapByteBuf.setBytes(PooledHeapByteBuf.java:261) ~[netty-buffer-4.1.16.Final.jar:4.1.16.Final]
at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1106) ~[netty-buffer-4.1.16.Final.jar:4.1.16.Final]
at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:343) ~[netty-transport-4.1.16.Final.jar:4.1.16.Final]
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:123) [netty-transport-4.1.16.Final.jar:4.1.16.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:645) [netty-transport-4.1.16.Final.jar:4.1.16.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:545) [netty-transport-4.1.16.Final.jar:4.1.16.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:499) [netty-transport-4.1.16.Final.jar:4.1.16.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:459) [netty-transport-4.1.16.Final.jar:4.1.16.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858) [netty-common-4.1.16.Final.jar:4.1.16.Final]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_152]
===============
出現這個錯誤說明client端主動放棄了鏈接(abort connection)， 要看一下是否客戶端訪問ES集群的時候，是否應用層面做了查詢超時一類的控制，從而因為某些查詢比較慢，客戶端主動放棄了，導致網絡鏈接沒有正常關閉。
解決辦法：1.重啟elasticSearch服務
2.修改kibana requesttimeout參數
3.更好的方法待發現