INTRODUCTION TOELEPHANTDBA DISTRIBUTED KEY/VALUE DATA STORE FOR EXPORTINGDATA FROM HADOOP/Soren Macbeth @sorenmacbeth
ANOTHER DATABASE? OH GOD WHY?!?!Hadoop is good at batch processing lots of data. Making thethe results of those batch calculation available to higherlayers isnt straightforward.This is what ElephantDB does. It is also the only thing that isdoes.
NOTABLE FEATURESOpen source, originally created by atBackTypeWritten inCreation of the database index is completely disassociatedfrom serving the indexThe server is read-onlyNathan MarzClojure
DOMAIN CREATIONHadoop Input/OutputFormatProvided and tapsKeys and values stored as byte arrays. Serialization left asan exercise to the readerPluggable persistence engines. LevelDB and BerkeleyDBJava Edition are providedDomains are versioned.Cascading Cascalog