Apache Kudu
Hadoop's storage layer to enable fast analytics on fast data.
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Apache Hudi hudi.apache.org
An open source framework for managing storage for real time processing, one of the most interesting feature is the Upsert.
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Apache OODT oodt.apache.org
capturing, processing and sharing of data for NASA's scientific archives.
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Apache Impala impala.apache.org
Big Data › Distributed Filesystem: “Hadoop's storage layer to enable fast analytics on fast data.”
Hadoop › Data Management: “Kudu provides a combination of fast inserts/updates and efficient columnar scans to enable multiple real-time analytic workloads across a single storage layer, complementing HDFS and Apache HBase.”