lhotari commented on PR #25010:
URL: https://github.com/apache/pulsar/pull/25010#issuecomment-3748878573

   > Currently, Pulsar Broker lacks a metric to track instances where delayed 
messages exceed their TTL. This results in messages set with delayed delivery 
times exceeding the TTL expiring before being consumed by users, with no 
mechanism to detect this occurrence. Consequently, there is a significant risk 
of message loss.
   
   The implementation doesn't seem to match the goal of the change ("track 
instances where delayed messages exceed their TTL").
   It currently target the case where the message has already been expired when 
it gets published. How common is that case? What TTL value are you using?


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