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Kylin is an open source Distributed Analytics Engine from eBay Inc. that provides SQL interface and multi-dimensional analysis (OLAP) on Hadoop supporting extremely large datasets
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Kylin – Hadoop OLAP Engine
October 2014
Jiang Xu, Architect of Kylin
Kylin Overview
Kylin
- n. (in Chinese art) a mythical animal of composite form
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Kylin is an open source Distributed Analytics Engine from
eBay Inc. that provides SQL interface and multi-dimensional
analysis (OLAP) on Hadoop supporting extremely large
datasets
http://kylin.io
What Is Kylin?
• Extremely Fast OLAP Engine at Scale
Kylin is designed to reduce query latency on Hadoop for 10+ billions of rows of data
• ANSI-SQL Interface on Hadoop
Kylin offers ANSI-SQL on Hadoop and supports most ANSI-SQL query functions
• Interactive Query Capability
Users can interact with Hadoop data via Kylin at sub-second latency, better than Hive queries for the same
dataset
• MOLAP Cube
User can define a data model and pre-build in Kylin with more than 10+ billions of raw data records
• Seamless Integration with BI Tools
Kylin currently offers integration capability with BI Tools like Tableau. Integration with Microstrategy and Excel
is coming soon
3
What Is Kylin? - Other Highlights
• Job Management and Monitoring
• Compression and Encoding Support
• Incremental Refresh of Cubes
• Leverage HBase Coprocessor for query latency
• Approximate Query Capability for distinct Count (HyperLogLog)
• Easy Web interface to manage, build, monitor and query cubes
• Security capability to set ACL at Cube/Project Level
• Support LDAP Integration
4
Glance of SQL-on-Hadoop Ecosystem …
• SQL translated to MapReduce jobs
– Hive
– Stinger without Tez
• SQL processed by a MPP Engine
– Impala
– Drill
– Presto
– Spark + Shark
• SQL process by a existing SQL Engine + HDFS
– EMC Greenplum (postgres)
– Tao ba o Garude (mysql)
• OLAP on Hadoop in other Companies
– Adobe: HBase Cube
– LinkedIn: Avatara
– Salesforce.com: Phoenix
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