What steps do you take to determine the bottleneck of a slow running ETL process?如果ETL进程运行较慢，需要分哪几步去找到ETL系统的瓶颈问题。
What steps do you take to determine the bottleneck of a slow running ETL process?
如果ETL进程运行较慢，需要分哪几步去找到ETL系统的瓶颈问题。
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