Though load balancing is not so significant in execution of a MapReduce algorithm, it becomes essential when handling large files for processing and when hardware resources use is critical.

虽然在执行MapReduce算法时负载平衡不够明显，但在进行大文件处理以及硬件资源利用至关重要的时候它是非常必要的。

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Knowing how much hard disk space is left or the system load on a server is essential before you begin installing other applications.

在开始安装其他应用程序前，务必知道剩下的硬盘空间或服务器上的系统负载。

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The reliability and the expansibility of storage system, the improvement of storage system's load balance are essential parts of distributed storage system.

保证存储系统的可靠性，可用性，提高存储系统的负载平衡是分布式存储系统面临的关键问题。

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To lighten the load, gadgets that can pirouette between different jobs are essential.

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