Apache Kudu, a mimic of SAP Hana?

Cloudera released Apache Kudu this late Sept. The technical paper is published here.
The primary strength of Kudu is the fast data access rates for both sequential scan and random access. This is similar to what SAP Hana has claimed. By reading the details of the paper above, we can see the implementation details are also similar: It keeps the in-memory version of the table/tablets RowSets, and modification delta stores. Maintenance is done on the flushing and compaction of the deltas and rowsets. The market will become interesting now ... I guess Kudu's focus and application scenarios are on the NoSQL world, working together with the Hadoop/Spark stack, while Hana is still a RDBMS solution.