| 词条 | Amazon Aurora |
| 释义 |
| logo = | name = Amazon Aurora | developer = Amazon.com | released = {{Release date and age|2014|10}} [1] | operating system = Cross-platform | language = English | genre = relational database SaaS | license = Proprietary | website = {{URL|https://aws.amazon.com/rds/aurora/}} }} Amazon Aurora is a hosted relational database service developed and offered by Amazon since October 2014.[1][2] Aurora is available as part of the Amazon Relational Database Service (RDS). Although it is a proprietary technology,[3] it offers MySQL compatible service since its release and PostgreSQL compatible since October 2017[4] and it is also possible to stop and start Aurora Clusters since September 2018[5]. Since August 2018 Amazon also offers a serverless version of AWS Aurora.[6] Key featuresAurora does not require the user to provision database storage, as it automatically allocates storage in 10-gigabyte increments, as needed, up to a maximum of 64 terabytes.[7] Aurora offers automatic, six-way replication of those 10-gigabyte chunks across multiple locations for improved availability and fault-tolerance. Aurora also provides users with more comprehensive performance metrics, such as query throughput and latency, as compared to other RDS database engines.[8], since August 2017 also provided fast database cloning feature[9]. Compatibility limitations with MySQLAmazon designed Aurora to be compatible with MySQL, meaning that tools for querying or managing MySQL databases (such as the {{Mono|mysql}} command-line client and the MySQL Workbench graphical user-interface) work with Amazon Aurora databases as well. Not all MySQL options and features are available, however: {{as of |2016 | September | lc = on}}, Amazon Aurora is compatible with two versions of MySQL (5.6, 5.7), and supports only InnoDB as a storage engine.[10] PerformanceAmazon claims fivefold performance improvements on benchmarking tests over MySQL on the same hardware, due to "tightly integrating the database engine with an SSD-based virtualized storage layer purpose-built for database workloads, reducing writes to the storage system, minimizing lock contention and eliminating delays created by database process threads".[10] Other independent tests have shown that Aurora performs better than competing technologies on some, but not all, combinations of workload and instance type.[11] See also
References1. ^1 https://aws.amazon.com/blogs/aws/highly-scalable-mysql-compat-rds-db-engine/ 2. ^{{Cite web |url=http://www.eweek.com/cloud/amazon-claims-new-aurora-db-engine-screams-with-speed.html |first=Chris |last=Preimesberger |title=Amazon Claims New Aurora DB Engine Screams With Speed |website=eweek.com |date=2014-11-12 |accessdate=2014-11-13}} 3. ^{{cite web|last1=Hiltbrand|first1=Troy|title=Analysis: Aurora Is Amazon's Answer for Forgotten DBMS Users|url=https://upside.tdwi.org/Articles/2016/07/22/Analysis-Amazon-Aurora-DBMS.aspx|website=Upside|publisher=TDWI|accessdate=14 September 2016}} 4. ^https://aws.amazon.com/blogs/aws/now-available-amazon-aurora-with-postgresql-compatibility/ 5. ^https://aws.amazon.com/about-aws/whats-new/2018/09/amazon-aurora-stop-and-start/ 6. ^https://aws.amazon.com/blogs/aws/aurora-serverless-ga/ 7. ^{{cite web|title=Amazon Aurora FAQs|url=https://aws.amazon.com/rds/aurora/details/|accessdate=14 September 2016}} 8. ^{{cite web|title=Monitoring Amazon Aurora performance metrics|url=https://www.datadoghq.com/blog/monitoring-amazon-aurora-performance-metrics/|publisher=Datadog|accessdate=15 September 2016}} 9. ^https://aws.amazon.com/blogs/aws/amazon-aurora-fast-database-cloning/ 10. ^1 {{cite web|title= Amazon Aurora Product Details |url= https://aws.amazon.com/rds/aurora/faqs/|accessdate= 15 September 2016}} 11. ^{{cite web|last1= Tusa|first1= Marco|title= AWS Aurora Benchmarking part 2|url= https://www.percona.com/blog/2016/05/26/aws-aurora-benchmarking-part-2/|publisher= Percona|accessdate= 15 September 2016}} External links
3 : 2014 software|Amazon Web Services|Cloud databases |
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