clintropolis commented on pull request #11299:
URL: https://github.com/apache/druid/pull/11299#issuecomment-849377914


   >@jihoonson I don't know why host directory is used in the original 
docker-compose.yml, and I'm waiting for an answer from @clintropolis . If 
there's no special reason, I think it's acceptable to use a named volume in the 
example compose file. Before that, we have to execute a command to set the 
permission for linux systems.
   
   Sorry for the delay, as long as the same volume for storage is shared and 
available to the historical, middle manager, and overlord containers then 
everything should be ok. The important part is that it is shared between 
containers, because the storage directory is used as deep storage for the 
example docker cluster, so the segments and task logs that the peons running in 
the  middle manager publish can be then read by the overlord and historical. I 
don't think it matters too much however this happens.


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