[GitHub] [pulsar] Jennifer88huang commented on pull request #8397: [Issue 7372][docs] Add detailed info for retention policy

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Jennifer88huang commented on pull request #8397:
URL: https://github.com/apache/pulsar/pull/8397#issuecomment-718390508


   @ErikJansenIRefact 
   
   > Hi,
   > 
   > In general good improvements in describing the behaviour of the retention settings.
   > I would suggest however that you describe the behaviour when both settings (time and size) have a value > 0. Are the messages now removed if one of the thresholds exceeds or only if both of them are exceeded. So are the settings a "logical and" or a "logical or"?
   > 
   > And is the 0-value treated as a special value? So, if size = 10Gb and time=0 are message now removed if size > 10Gb?
   > And if size = 10Gb and time = 1d are messages now removed if either the size or the time is exceeded?
   
   Good question.  it's "logical or". However, if you set either to `0`, the retention is disabled.
   @lhotari Thank you for helping answer the question, and provide the related doc. 
   I'll add more details here to make it clear.


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