Master node warning

Hi,

I installed search guard in all nodes (1 master node and 2 data nodes)

I able to get success in data nodes but in master node i got following warnings, what does it means and how to resolve it.

[2017-06-27T12:30:40,873][WARN ][c.f.s.h.SearchGuardHttpServerTransport] [node59] caught exception while handling client http traffic, closing connection [id: 0x662d307e, L:0.0.0.0/0.0.0.0:9200 ! R:/192.168.1.59:57017]

io.netty.handler.codec.DecoderException: io.netty.handler.ssl.NotSslRecordException: not an SSL/TLS record: 48454144202f20485454502f312e310d0a486f73743a203139322e3136382e312e35393a393230300d0a557365722d4167656e743a20656c61737469632f352e302e3420286c696e75782d616d643634290d0a4163636570743a206170706c69636174696f6e2f6a736f6e0d0a417574686f72697a6174696f6e3a20426173696320534756745957316961577468554739746258567959584268624778704f6d466a5932567a63773d3d0d0a0d0a

at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:442) ~[netty-codec-4.1.9.Final.jar:4.1.9.Final]

at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:248) ~[netty-codec-4.1.9.Final.jar:4.1.9.Final]

at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-transport-4.1.9.Final.jar:4.1.9.Final]

at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-transport-4.1.9.Final.jar:4.1.9.Final]

at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-transport-4.1.9.Final.jar:4.1.9.Final]

at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1334) [netty-transport-4.1.9.Final.jar:4.1.9.Final]

at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-transport-4.1.9.Final.jar:4.1.9.Final]

at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-transport-4.1.9.Final.jar:4.1.9.Final]

at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:926) [netty-transport-4.1.9.Final.jar:4.1.9.Final]

at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:134) [netty-transport-4.1.9.Final.jar:4.1.9.Final]

at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:624) [netty-transport-4.1.9.Final.jar:4.1.9.Final]

at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:524) [netty-transport-4.1.9.Final.jar:4.1.9.Final]

at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:478) [netty-transport-4.1.9.Final.jar:4.1.9.Final]

at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:438) [netty-transport-4.1.9.Final.jar:4.1.9.Final]

at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858) [netty-common-4.1.9.Final.jar:4.1.9.Final]

at java.lang.Thread.run(Thread.java:745) [?:1.8.0_65]

Caused by: io.netty.handler.ssl.NotSslRecordException: not an SSL/TLS record: 48454144202f20485454502f312e310d0a486f73743a203139322e3136382e312e35393a393230300d0a557365722d4167656e743a20656c61737469632f352e302e3420286c696e75782d616d643634290d0a4163636570743a206170706c69636174696f6e2f6a736f6e0d0a417574686f72697a6174696f6e3a20426173696320534756745957316961577468554739746258567959584268624778704f6d466a5932567a63773d3d0d0a0d0a

at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1060) ~[?:?]

at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:411) ~[?:?]