调度节点和执行节点通过一个协议来确保至少它们其中一个要在磁盘上保持那些状态信息。
The scheduling node and the execution node use a protocol that ensures that the state information is kept on disk by at least one of them.
为了确保有效的处理，将对主机服务器运行一个调度器，平衡复杂工作负载的执行，满足多用户需求，同时保持较高的利用率和吞吐量。
To ensure efficient handling, a scheduler runs on the host servers, balancing execution across complex workloads to meet the needs of multiple users, while maintaining high utilization and throughput.
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