MapReduce VS Parallel DBMSs. Presenter: Ran Ding. G uideline. 1. Introduction 2. Where the MR wins 3. DBMS “sweet spot” tests 4. Why the Parallel DBMS wins 5. C onclusion. Introduction-----MR.
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MR systems are powerful tools for ETL-style applications and for complex analytics. If the application is query-intensive, whether semi structured or rigidly structured, then a DBMS is probably the better choice