AWS EMR Presto群集突然终止错误:由于竞价，作业流中的所有从服务器均已终止 [英] AWS EMR Presto Cluster Terminated abruptly Error: All slaves in the job flow were terminated due to Spot

问题描述

我在使用AWS EMR PrestoDB时遇到麻烦.我启动了一个集群，其中主节点为协调器，核心节点为工作器.核心节点是竞价型实例.但是，主节点是按需的.群集启动5周后，我收到了此错误消息

I am having trouble with AWS EMR PrestoDB. I launched a cluster with master nodes as coordinator and core nodes as workers. Core nodes were spot instances. But, master node was on demand. After 5 weeks of cluster launch, i got this error message

Terminated with errorsAll slaves in the job flow were terminated due to Spot

是否所有终端都被终止会使集群本身终止?我看到了现货定价历史，但没有达到我设定的最高价格.

Is it that if all slaves are terminated will make the cluster itself terminate? I see the spot pricing history, and it didn't reached around the max price I set.

我已经做了什么?我检查了转储到s3的日志.我没有找到有关终止原因的任何信息.只是说

What I have already done? I have checked logs that are dumped to s3. I didn't found any information about the cause of termination. It just said

Failed to visit ... <many directories>

推荐答案

我正在回答自己的问题.根据presto社区，AWS EMR Presto集群中必须至少有一个主节点正在运行.但是由于终止了，所以整个集群也终止了.

I am answering my own question. As per the presto community, there must be at least one master node up and running in the AWS EMR Presto cluster. But since it got terminated, the whole cluster got terminated.

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