kgeisz commented on PR #6887:
URL: https://github.com/apache/hbase/pull/6887#issuecomment-2950830915

   > What do you mean by "active cluster startup attempted"?
   
   I got it from the design document:
   
   > When the ‘active_cluster_id’ file is created on cloud storage with cluster 
id of active cluster, startup will not be allowed and error will be reported in 
below scenarios,
   > - active cluster startup attempted after setting 
hbase.global.readonly.enabled to true
   > - replica cluster startup attempted after setting 
hbase.global.readonly.enabled to false
   
   My understanding is "active cluster startup attempted" means the cluster 
whose ID and suffix is in the `active_cluster_id` file is the cluster that's 
being started.
   
   > If readonly mode is true, it means user attempts to start a replica 
cluster which will succeed always, because in this case we don't check the 
active cluster id file.
   
   That makes sense, although it doesn't align with what the design doc says.  
I was expecting this scenario to result in an exception.


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