[GitHub] [ozone] rakeshadr edited a comment on pull request #1891: HDDS-4790. Add a tool to parse entries in the prefix format

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rakeshadr edited a comment on pull request #1891:
URL: https://github.com/apache/ozone/pull/1891#issuecomment-776480046


   > From the description it's not fully clear what is the goal of this tool. Can you please help me to understand the use-case? Looks interesting...
   > 
   > (Is it similar to the `ozone debug ldb`?)
   
   Thanks @elek for the interest in this work. As we know, with prefix based implementation keypath stores only leaf node(fileName/dirName) and table key like <parentID/fileName>. The idea behind this tool is to print only necessary information to quickly help to inter-connect the path elements. `ldb` is printing entire details and which is difficult to go through all the content and find out any mistakes quickly. I believe, we would add more tools based on the usability/debugability.
   
   Welcome thoughts/feedback:-)
   
      ```
       For example, if a key "a/b/key1" created into a FSOBucket then each
       path component will be assigned an ObjectId and linked to its parent path
       component using parent's objectID.
      
       Say, Bucket's ObjectID = 512, which is the parent for its immediate child
       element.
   
      | ------------------------------------------|
      | PathComponent |   ObjectID   |   ParentID |
      | ------------------------------------------|
      |      a        |     1024     |     512    |
      | ------------------------------------------|
      |      b        |     1025     |     1024   |
      | ------------------------------------------|
      |     key1      |     1026     |     1025   |
      | ------------------------------------------|
   ```
   


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