fhalde opened a new issue, #955:
URL: https://github.com/apache/incubator-uniffle/issues/955

   ### Code of Conduct
   
   - [X] I agree to follow this project's [Code of 
Conduct](https://www.apache.org/foundation/policies/conduct)
   
   
   ### Search before asking
   
   - [X] I have searched in the 
[issues](https://github.com/apache/incubator-uniffle/issues?q=is%3Aissue) and 
found no similar issues.
   
   
   ### Which parts of the documentation do you think need improvement?
   
   The following configurations are a bit confusing
   
   > rss.coordinator.shuffle.nodes.max
   is assignment per shuffle partition or per shuffle writer? why can there be 
multiple assignments in the first place?
   
   > rss.coordinator.remote.storage.select.strategy
   what does `IO_BALANCE` and `APP_BALANCE` even mean?
   
   > rss.server.buffer.capacity
   is this a shared global buffer or per app buffer or per connection buffer? 
how to tune this? what to look for?
   
   > rss.server.read.buffer.capacity
   is this global or per shuffle reader? how to tune it? what to look for?
   
   > rss.server.single.buffer.flush.enabled
   what is a single buffer?
   
   
   
   
   ### Affects Version(s)
   
   master
   
   ### Improving the documentation
   
   _No response_
   
   ### Anything else
   
   _No response_
   
   ### Are you willing to submit PR?
   
   - [X] Yes I am willing to submit a PR!


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