There are many details related to how regions and compactions work in HBase, various strategies for ingesting data into HBase, using and understanding block cache, and more that we are glossing over when using the hash table analogy. However, it’s still a very apt comparison, primarily because it makes you think of HBase as more of a distributed key-value store instead of an RDBMS. It makes you think in terms of
delete requests instead of SQL queries.
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