Kudu : Storage for Fast Analytics on Fast Data ∗

Abstract

Kudu is an open source storage engine for structured data which supports low-latency random access together with ef-ficient analytical access patterns. Kudu distributes data us-ing horizontal partitioning and replicates each partition us-ing Raft consensus, providing low mean-time-to-recovery and low tail latencies. Kudu is designed within the context of the Hadoop ecosystem and supports many modes of access via tools such as Cloudera Impala[20], Apache Spark[28], and MapReduce[17].