jiangtaoNuc commented on issue #15921:
URL: 
https://github.com/apache/dolphinscheduler/issues/15921#issuecomment-2078652606

   The first image is the overall scheduling and monitoring of the overall 
project, and the second image is the monitoring of the overall project. The 
following are some things to note:,
   1. Try to avoid processing data separately and summarize the results from 
existing DS metadata tables during queries
   2. Considering the situation where some users have a large number of task 
instances in their production environment, excessive metrics can lead to slow 
queries. So the calculation of indicators should try not to associate too many 
tables, and for trend indicator levels, especially for multi day task instance 
statistics, switches need to be added to allow users to choose whether to 
enable configuration.


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