cassandra异常，

cassandra异常，

建表空间没问题。
在插入测试的时候报错！

2017-55-07 04:55:27 开始插入数据共计 10 条
Exception in thread "main" com.datastax.driver.core.exceptions.WriteTimeoutException: Cassandra timeout during write query at consistency LOCAL_ONE (1 replica were required but only 0 acknowledged the write)
    at com.datastax.driver.core.exceptions.WriteTimeoutException.copy(WriteTimeoutException.java:73)
    at com.datastax.driver.core.exceptions.WriteTimeoutException.copy(WriteTimeoutException.java:26)
    at com.datastax.driver.core.DriverThrowables.propagateCause(DriverThrowables.java:37)
    at com.datastax.driver.core.DefaultResultSetFuture.getUninterruptibly(DefaultResultSetFuture.java:245)
    at com.datastax.driver.core.AbstractSession.execute(AbstractSession.java:64)
    at com.datastax.driver.core.AbstractSession.execute(AbstractSession.java:39)
    at com.ym.cass.CassBaseDao.loadData(CassBaseDao.java:76)
    at com.ym.cass.App.main(App.java:26)
Caused by: com.datastax.driver.core.exceptions.WriteTimeoutException: Cassandra timeout during write query at consistency LOCAL_ONE (1 replica were required but only 0 acknowledged the write)
    at com.datastax.driver.core.exceptions.WriteTimeoutException.copy(WriteTimeoutException.java:100)
    at com.datastax.driver.core.Responses$Error.asException(Responses.java:122)
    at com.datastax.driver.core.RequestHandler$SpeculativeExecution.onSet(RequestHandler.java:500)
    at com.datastax.driver.core.Connection$Dispatcher.channelRead0(Connection.java:1012)
    at com.datastax.driver.core.Connection$Dispatcher.channelRead0(Connection.java:935)
    at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:328)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:321)
    at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:266)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:328)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:321)
    at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:328)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:321)
    at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:293)
    at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:267)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:328)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:321)
    at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1280)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:328)
    at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:890)
    at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:564)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:505)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:419)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:391)
    at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:112)
    at java.lang.Thread.run(Thread.java:745)
Caused by: com.datastax.driver.core.exceptions.WriteTimeoutException: Cassandra timeout during write query at consistency LOCAL_ONE (1 replica were required but only 0 acknowledged the write)
    at com.datastax.driver.core.Responses$Error$1.decode(Responses.java:59)
    at com.datastax.driver.core.Responses$Error$1.decode(Responses.java:37)
    at com.datastax.driver.core.Message$ProtocolDecoder.decode(Message.java:277)
    at com.datastax.driver.core.Message$ProtocolDecoder.decode(Message.java:257)
    at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:88)
    ... 19 more

翻译结果：
卡桑德拉超时在写查询的一致性local_one（1副本是必需的但只有0的人承认写）
感觉是数据库没配好 权限问题？ 一致性什么鬼

服务器上登控制台也报错

[cassandra@template bin]$ ./cqlsh
Connection error: ('Unable to connect to any servers', {'127.0.0.1': error(111, "Tried connecting to [('127.0.0.1', 9042)]. Last error: Connection refused")})

心好累

——————–2017年7月10日10:28:14 周一 ——————————
休息了两天 周五的时候网络不好百度页面打开都慢。
刚搜到一篇文章 按着上面提示处理了下居然解决上面那个问题了。记录一下
参考原文

增大下面两个参数值。

read_request_timeout_in_ms: 5000 
write_request_timeout_in_ms: 2000

这两个参数的值，我这里都改成了9秒 再重启cassandra数据库插入就没问题了。

登录控制台

居然和mysql格式是一样的。-u 用户名 -p 密码