When you optimize your system, investigate the maximum optimal size for forests and the maximum number of stands that you want before you start (or configure the system to start) a merge.
优化系统时，应该在开始（或配置系统以开始）合并之前检查森林的最优大小和树木的最优数量。
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When using WebSphere DataStage to join and merge data, it is the developer's responsibility to determine the optimal strategy based on his or her knowledge of the data.