一个cassandra vnode一直在来回移动

我们正在8节点数据中心上使用vnodes。其中一个节点不断移动其令牌范围，这样做会导致连接的客户端出现超时错误

以下是我们在OpsCenter事件中看到的内容：

4/13/2016, 10:51am  Info    Host 172.31.34.155 moved from '-1108852503760494577' to '8185241953623605265'   ip-172-31-34-155    
4/13/2016, 10:46am  Info    Host 172.31.34.155 moved from '8185241953623605265' to '-1108852503760494577'   ip-172-31-34-155    
4/13/2016, 10:43am  Info    Host 172.31.34.155 moved from '-1108852503760494577' to '8185241953623605265'   ip-172-31-34-155    
4/13/2016, 10:27am  Info    Host 172.31.34.155 moved from '-1108852503760494577' to '8185241953623605265'   ip-172-31-34-155    
4/13/2016, 10:15am  Info    Host 172.31.34.155 moved from '8185241953623605265' to '-1108852503760494577'   ip-172-31-34-155    
4/13/2016, 10:06am  Info    Host 172.31.34.155 moved from '8185241953623605265' to '-1108852503760494577'   ip-172-31-34-155    
4/13/2016, 9:35am   Info    Host 172.31.34.155 moved from '-1108852503760494577' to '8185241953623605265'   ip-172-31-34-155    
4/13/2016, 9:33am   Info    Host 172.31.34.155 moved from '8185241953623605265' to '-1108852503760494577'   ip-172-31-34-155    
4/13/2016, 9:23am   Info    Host 172.31.34.155 moved from '-1108852503760494577' to '8185241953623605265'   ip-172-31-34-155    
4/13/2016, 9:18am   Info    Host 172.31.34.155 moved from '8185241953623605265' to '-1108852503760494577'   ip-172-31-34-155    
4/13/2016, 8:44am   Info    Host 172.31.34.155 moved from '-1108852503760494577' to '8185241953623605265'   ip-172-31-34-155    
4/13/2016, 8:36am   Info    Host 172.31.34.155 moved from '8185241953623605265' to '-1108852503760494577'   ip-172-31-34-155    
4/13/2016, 8:34am   Info    Host 172.31.34.155 moved from '-1108852503760494577' to '8185241953623605265'   ip-172-31-34-155    
4/13/2016, 8:13am   Info    Host 172.31.34.155 moved from '-1108852503760494577' to '8185241953623605265'   ip-172-31-34-155    
4/13/2016, 7:22am   Info    Host 172.31.34.155 moved from '-1108852503760494577' to '8185241953623605265'   ip-172-31-34-155    
4/13/2016, 6:54am   Info    Host 172.31.34.155 moved from '8185241953623605265' to '-1108852503760494577'   ip-172-31-34-155    
4/13/2016, 6:37am   Info    Host 172.31.34.155 moved from '-1108852503760494577' to '8185241953623605265'   ip-172-31-34-155    
4/13/2016, 6:27am   Info    Host 172.31.34.155 moved from '8185241953623605265' to '-1108852503760494577'   ip-172-31-34-155    
4/13/2016, 6:24am   Info    Host 172.31.34.155 moved from '-1108852503760494577' to '8185241953623605265'   ip-172-31-34-155    
4/13/2016, 6:16am   Info    Host 172.31.34.155 moved from '8185241953623605265' to '-1108852503760494577'   ip-172-31-34-155    
4/13/2016, 6:15am   Info    Host 172.31.34.155 moved from '-1108852503760494577' to '8185241953623605265'   ip-172-31-34-155

你知道这是什么原因吗？我们尝试在集群上运行完全修复，但这种行为一直集中在这个特定节点上

显然，所有节点都具有相同的配置

---

我们正在使用DSE 4.8.6

您可以检查移动节点的

system.log

文件以查看是否存在任何错误/异常吗？大量“com.google.common.util.concurrent.UncheckedExecutionException:java.lang.RuntimeException:org.apache.cassandra.exception.ReadTimeoutException:操作超时-仅收到0个响应。”发生这种情况时，请在该日志的system.log上单击。没有其他错误/警告您可以将

system.log

的内容发布到某个地方吗？似乎存在这个移动节点读取数据的问题，因为它刚刚停止发生。还是不知道原来发生了什么。也许可以修理一下？无论如何，谢谢你的提醒