[GitHub] [incubator-doris] ccoffline edited a comment on issue #6477: [Performance] show proc statistic takes too long

[GitBox <gi...@apache.org>]

ccoffline edited a comment on issue #6477:
URL: https://github.com/apache/incubator-doris/issues/6477#issuecomment-904411893


   > I think that it is needed to speed up caculating, but in most case, we need to know the real time cluster replica statistic, cache may be confused when we need to track some cluster problems
   
   The cache is configurable, maybe set cache timeout 0 to disable. The cache is mostly to prevent high frequency query in a short time that may cause high calculation cost and heavy lock competitions, maybe 1s is close enough from real-time refresh.
   
   The cache is easy to implement, the state is restored in the previous version and may cause concurrent issue, so the cache is kind of fixing a concurrent bug rather than a new feature. 


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