[GitHub] keith-turner commented on a change in pull request #38: Continue tour

[GitBox]

keith-turner commented on a change in pull request #38: Continue tour
URL: https://github.com/apache/accumulo-website/pull/38#discussion_r150920891
 
 

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 File path: tour/data-model.md
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 @@ -0,0 +1,30 @@
+---
+title: Data Model
+---
+Data is stored in Accumulo in a sorted [TreeMap]. The Keys are broken up 
logically into a few different parts, as seen in the image below.
+
+![key value pair]({{ site.url }}/images/docs/key_value.png)
+
+**Row ID** - Unique identifier for the row.<br/>
+**Column Family** - Logical grouping of the key.<br/>
+**Column Qualifier** - More specific attribute of the key.<br/>
+**Column Visibility** - Security label controlling access to the key/value 
pair.<br/>
 
 Review comment:
   I think it would be useful to mention the timestamp along with all of the 
other fields and mention that it is used for versioning.

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