com.datastax.driver.core.exceptions.InvalidQueryException：未配置的表 peers_v2答案

【问题标题】：com.datastax.driver.core.exceptions.InvalidQueryException: unconfigured table peers_v2com.datastax.driver.core.exceptions.InvalidQueryException：未配置的表 peers_v2
【发布时间】：2020-08-08 06:06:26
【问题描述】：

我正在使用 Spring Boot 开发一个连接到 cassandra 的应用程序

这是我的连接设置

spring.data.cassandra.contact-points=localhost
spring.data.cassandra.keyspace-name=sa_tas_db_cassandra
spring.data.cassandra.schema-action=create_if_not_exists
spring.data.cassandra.username=cassandra

我只是在使用一个表格，它是通过模型创建的。以下是哪个

import org.springframework.data.cassandra.core.mapping.PrimaryKey
import org.springframework.data.cassandra.core.mapping.Table
import java.time.LocalTime
import java.util.*

@Table
data class CallLog(
    @PrimaryKey
    val callId:UUID,
    val CustomerUsername: String? = null,
    val callDirection: String? = null,
    val callingPartyName:String? = null,
    val callingPartyNumber:String? = null,
    val calledPartyNumber:String? = null,
    val typeOfCall:String? = null,
    val startTime: Date? = null,
    val answerTime: LocalTime? = null,
    val disconnectTime:Date? = null,
    val timeCallForwarded: Date? = null,
    val voicemailSystemAccessNumber:String? = null
)

这就是我的 cassandra 设置

我也在用新的 relic 监控我的应用程序，它会产生以下问题

….netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99)
…hannel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377)
…hannel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363)
….channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
  io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286)
…hannel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377)
…hannel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363)
….channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
…etty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
…hannel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377)
…hannel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363)
….channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
…tty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:321)
…o.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:295)
…hannel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377)
…hannel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363)
….channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
…netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:93)
…hannel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377)
…hannel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363)
….channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
…channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
…hannel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:377)
…hannel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363)
…o.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
….channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163)
   io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:714)
….channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:650)
  io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:576)
                  io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)
….netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
         io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
   io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)

此错误不会影响应用程序的运行，只会影响性能

谢谢

【问题讨论】：

标签： java cassandra newrelic datastax-java-driver spring-data-cassandra

【解决方案1】：

这是支持 Cassandra 4.0 的兼容性测试的一部分，它将有关集群中节点的信息存储在具有不同名称的表中，因此驱动程序首先假设它针对较新版本运行，并检查此表，如果它收到错误，然后它使用旧的peers 表。仅从版本号无法可靠地检测 Cassandra 节点的功能，这就是为什么最好明确检查表。

对应的代码是here。

【讨论】：