EventQL
| Developer(s) | DeepCortex GmbH |
|---|---|
| Stable release | 0.3.1
/ July 26, 2016 |
| Engine | |
| Operating system | Cross-platform |
| Available in | C++ |
| Licence | AGPL v3 |
| Website | eventql |
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EventQL is an open-source massively parallel database that supports SQL queries on large datasets.
EventQL is the open source version of Google's BigQuery system. One explicitly stated design goal is that EventQL is able to scale to 10,000 servers or more and to be able to process hundreds of terabytes of data and trillions of events in seconds.
EventQL's location-aware optimizer automatically restructures a query plan to improve data locality.[1]
Features
- Streaming insert and update operations
- SQL and JavaScript MapReduce Queries
- Tables and queries are transparently split into partitions and distributed over many servers.
- Supports Nested Records (ARRAY and OBJECT column types)
- Open-source C++11 codebase
Dependencies
EventQL relies on the Apache ZooKeeper cluster coordination service. [2]
See also
References
- ↑ "8.1 Architecture". eventql.io. Retrieved 2016-08-19.
- ↑ "2.5.1 Setting up a new cluster". eventql.io. Retrieved 2016-08-19.
Papers
Some papers influenced the birth and design of EventQL. Here is a partial list:
- 2010 Dremel: Interactive Analysis of Web-Scale Datasets
- 2006 Bigtable: A Distributed Storage System for Structured Data
- 2007 Dynamo: Amazon’s Highly Available Key-value Store
External links
- Official EventQL Homepage
- EventQL on OSChina
- Git Repository on GitHub
- heise.de Developer Snapshots 2016-07-29
This article "EventQL" is from Wikipedia. The list of its authors can be seen in its historical. Articles copied from Draft Namespace on Wikipedia could be seen on the Draft Namespace of Wikipedia and not main one.
