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com.datastax.driver.core.exceptions.AuthenticationException: Authentication error on host /172.16.3.32:9042: Host /172.16.3.32:9042 requires authentication, but no authenticator found in Cluster configuration	at com.datastax.driver.core.AuthProvider$1.newAuthenticator(AuthProvider.java:38)	at com.datastax.driver.core.Connection$5.apply(Connection.java:251)	at com.datastax.driver.core.Connection$5.apply(Connection.java:238)	at com.google.common.util.concurrent.Futures$ChainingListenableFuture.run(Futures.java:863)	at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:297)	at com.google.common.util.concurrent.ExecutionList.executeListener(ExecutionList.java:156)	at com.google.common.util.concurrent.ExecutionList.execute(ExecutionList.java:145)	at com.google.common.util.concurrent.AbstractFuture.set(AbstractFuture.java:185)	at com.datastax.driver.core.Connection$Future.onSet(Connection.java:1170)	at com.datastax.driver.core.Connection$Dispatcher.channelRead0(Connection.java:1000)	at com.datastax.driver.core.Connection$Dispatcher.channelRead0(Connection.java:922)	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)	at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:254)	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)	at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:242)	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:847)	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)	at java.lang.Thread.run(Thread.java:745)