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diff --git a/chapter/8/big-data.md b/chapter/8/big-data.md index 30ee25a..eaabfab 100644 --- a/chapter/8/big-data.md +++ b/chapter/8/big-data.md @@ -572,7 +572,7 @@ The Hive execution model composes of the below important components (and as show - Optimization : Optimization forms the core of any declarative interface. In case of Hive, optimization happens through chains of transformation of DAG. A transformation could include even a user defined optimization and it applies an action on the DAG only if a rule is satisfied. Every node in the DAG implements a special interface called as Node interface which makes it easy for the manipulation of the operator DAG using other interfaces like GraphWalker, Dispatcher, Rule and Processor. Hence, by transformation, we mean walking through a DAG and for every Node we encounter we perform a Rule satisfiability check. If a Rule is satisfied, a corresponding processor is invoked. A Dispatcher maintains a list of Rule to Processor mappings. -<figure class="main-container"> +<figure class="main-container" align="center"> <img src="./Hive-transformation.png" alt="Hive transformation" /> </figure> |