[GitHub] [incubator-druid] capistrant opened a new pull request #8462: Add druid.segmentCache.numBootstrapThreads back to the docs

[GitBox <gi...@apache.org>]

capistrant opened a new pull request #8462: Add druid.segmentCache.numBootstrapThreads back to the docs
URL: https://github.com/apache/incubator-druid/pull/8462
 
 
   ### Description
   
   `druid.segmentCache.numBootstrapThreads` was removed from the documentation at some point. However, it is still used when set and I don't see any deprecation comments in the code, so I think it should be documented properly. I can imagine times when a user may want numBootstrapThreads and numLoadingThreads to be different. One specifically is when my team is okay with loading on more threads at startup than during post-startup when reaching out to HDFS deep store because we don't want to pound our production NameNode that has many tenants.
   
   Code [link](https://github.com/apache/incubator-druid/blob/master/server/src/main/java/org/apache/druid/segment/loading/SegmentLoaderConfig.java#L52) for referene
   
   <hr>
   
   This PR has:
   - [X] been self-reviewed.
   - [X] added documentation for new or modified features or behaviors.
   
   <hr>
   
   ##### Key changed/added classes in this PR
    * Not Applicable

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