Best Practices For Implementing High Volume IoT workloads ...
Best Practices For Implementing High Volume IoT workloads with Oracle Database 12c
Enabling Global Scale IoT
ORACLE WHITE PAPER | APRIL 2017
Disclaimer
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BEST PRACTICES FOR IMPLEMENTING IOT WORKLOADS WITH ORACLE DATABASE 12C
Table of Contents
Introduction Intended Audience What is the Internet of Things Scalability
Real Application Clusters Database Configuration
Tablespaces Redo Logs Memory Settings SGA PGA Data loading Mechanisms Conventional inserts Commit Frequency Array Inserts Direct Path Loads & External Tables Flexibility JSON Support Partitioning Partitioning for manageability Partitioning for performance
1 | BEST PRACTICES FOR IMPLEMENTING IOT WORKLOADS WITH ORACLE DATABASE 12C
Disclaimer 1 3 3 4 4 4 5 5 6 6 6 6 6 7 7 8 8
11 11 11 11 12
Partitioning for Affinity
12
Real-Time Analysis
13
Parallel Execution
13
Indexing
14
Overhead of Keeping Indexes Transactionally Consistent
14
Partially Useable Indexes
14
Materialized Views
15
Oracle Database In-Memory
15
Overhead of Keeping IM Column Store Transactionally Consistent
16
Test Results
16
Conclusion
17
Appendix A ? Example of an Array Insert in Python
18
Appendix B ? Example of Determining Which Hash Partition Data Belongs To
19
Sample Code
19
2 | BEST PRACTICES FOR IMPLEMENTING IOT WORKLOADS WITH ORACLE DATABASE 12C
Introduction
Over the last ten years there has been a rapid surge in the adoption of smart devices. Everything from phones and tablets, to smart meters and fitness devices, connect to the Internet and share data enabling remote access, automatic software updates, error reporting, and the transmission of sensor readings. Gartner estimates that by 2020 there will be over 26 billion connected devices.
With all of these smart devices comes a huge increase in the frequency and volume of data being ingested into and processed by databases. This scenario is commonly referred to as the Internet of Things or IoT. Being able to ingest and analyze rapidly increasing data volumes in a performant and timely manner is critical for businesses to maintain their competitive advantage. Determining the best platform to manage this data is a common problem faced by lots of organization across many different industries.
Some people assume that a NoSQL database is required for an IoT workload because the ingest rate required exceeds the capabilities of a traditional relational database. This is simply not true. A relational database can easily exceed the performance of a NoSQL database when properly tuned.
Oracle Database is more than capable of ingesting hundreds of millions of rows per second. It is also the industry-leading database in terms of analytics, high availability, security and scalability, making it the best choice for mission critical IoT workloads.
The performance of data ingest operations are affected by many variables including the method used to insert the data, the schema, the use of parallel execution, and the commit rate. The same is true for analytical queries. This paper outlines the best practices to ensure optimal performance when ingesting and analyzing large volumes of data in real time with Oracle Databases.
Intended Audience
Readers are assumed to have basic knowledge of Oracle Database technologies.
3 | BEST PRACTICES FOR IMPLEMENTING IOT WORKLOADS WITH ORACLE DATABASE 12C
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