Kudu can be colocated with HDFS on the same data disk mount points. The kudu storage engine supports access via Cloudera Impala, Spark as well as Java, C++, and Python APIs. Cloudera began working on Kudu in late 2012 to bridge the gap between the Hadoop File System HDFS and HBase Hadoop database and to take advantage of newer hardware. Apache Kudu is an open-source columnar storage engine. 易观CTO 郭炜 序 现在大数据组件非常多,众说不一,在每个企业不同的使用场景里究竟应该使用哪个引擎呢? 这是易观Spark实战营出品的开源Olap引擎测评报告,团队选取了Hive、Sparksql、Presto、Impala、Hawq、Clickhouse、Greenplum大数据查询引擎,在原生推荐配置情况下,在不同场景下做一次横向对 … Hive is a batch query engine built on top of HDFS (a distributed file system for immutable, large files) and YARN (a resource manager for distributed batch jobs). I have gotten the pitch from Cloudera (company) and done some of my own research, so that is purely what my opinion is based on. Apache Kudu is a free and open source column-oriented data store of the Apache Hadoop ecosystem. Thanks for the A2A, however I preface my answer with I’ve never used Kudu. Unmodified TPC-DS-based performance benchmark show Impala’s leadership compared to a traditional analytic database (Greenplum), especially for multi-user concurrent workloads. If you want to insert your data record by record, or want to do interactive queries in Impala then Kudu is likely the best choice. Now it boils down to whether you want to store the data in Hive or in Kudu, as Spark can work with both of these. It is compatible with most of the data processing frameworks in the Hadoop environment. It promises low latency random access and efficient execution of analytical queries. Hive vs RDBMS. If you want to insert and process your data in bulk, then Hive tables are usually the nice fit. This is similar to colocating Hadoop and HBase workloads. With Kudu, Cloudera has addressed the long-standing gap between HDFS and HBase: the need for fast analytics on fast data. This entry was posted in Hive and tagged apache hive vs mysql differences between hive and rdbms hadoop hive rdbms hadoop hive vs mysql hadoop hive vs oracle hive olap functions hive oltp hive vs postgresql hive vs rdbms performance hive vs relational database hive vs sql server rdbms vs hadoop on August 1, 2014 by Siva. Additionally, benchmark continues to demonstrate significant performance gap between analytic databases and SQL-on-Hadoop engines like Hive LLAP, Spark SQL, and Presto. LSM vs Kudu • LSM – Log Structured Merge (Cassandra, HBase, etc) • Inserts and updates all go to an in-memory map (MemStore) and later flush to on-disk files (HFile/SSTable) • Reads perform an on-the-fly merge of all on-disk HFiles • Kudu • Shares some traits (memstores, compactions) • … Additional frameworks are expected, with Hive being the current highest priority addition. Kudu is integrated with Impala, Spark, Nifi, MapReduce, and more. Can I colocate Kudu with HDFS on the same servers? 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