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High Performance Databases

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Learn more about the high performance databases available on Amazon Web Services.

Learn more about the high performance databases available on Amazon Web Services.

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  • Welcome to today’s webinar on high performance databases in the cloudWe will start by looking at the type of effort needed to manage and scale a databaseThen we’ll cover the options for scaling databases to achieve high performance, and the challenges associated with scaling a databaseWe’ll take a look at RDS and other Amazon Database Services to understand how customer deploy them for high performanceFinally, we’ll take a look at some examples
  • Anyone who has interacted with a database understands that it takes varying degrees of effort to manage a databaseIt’s also important to assess the quality of the effort spent managing a databaseIs this differentiated effort, or undifferentiated?
  • Differentiated effort increases the uniqueness of an applicationIt is the work you put in that enhances the value of the businessThe most obvious examples of application differentiation are compelling new features and an optimal user experienceWhen building high-scale databases, low-level tasks can often reduce the time available to enhance the experience
  • When we look at the time spent by a database administrator, it’s easy to see what effort help the application differentiate itselfScripting and coding enable the application to provide new features and capabilities – yet it generally it done only 5% of the timeUnderstanding the quality of the effort help us prioritize our optionsLet’s move to specific options for scaling databases
  • There are two types and three basic approaches to scalingScaling up adds hardware to improve performanceScaling out is applied to reads and writes independently, and the nature of the workload determines which approach is adopted firstRelational databases generally experience more reads than writes, often up to 90% of transaction volume is generated by read activityLet’s examine each of these approaches in more detail…
  • Scaling the infrastructure means adding new hardware – sometimes lots of itKnowing where to add infrastructure is importantIncreasing server capacity addscpu and memory to the database – this is compute powerIncreasing throughput requires faster networks and more storage volumesThe data files are striped across these volumes to increase parallel I/O to the database, producing higher throughputThis is primarily suited to OLTP workloads, in which reads and writes are randomly distributed across the full data setScaling infrastructure requires time and money for on-premise database servers –and that’s just the first challenge…
  • The great unknown that exists at the beginning of the process (to request, purchase, and provision the hardware) is how much capacity is needed, and for how long?Traditional infrastructure generally requires that you predictthe amount of computing resources your application will useover a period of several years. If you under-estimate, your applications will not have the horsepower to handle unexpected traffic, potentially resulting in customer dissatisfaction. If you over-estimate, you’re wasting money withsuperfluous resources. The on-demand and elastic nature of the cloud enables the infrastructure to be closely aligned (as it expands and contracts) with the actual demand, thereby increasing overall utilization and reducing cost.
  • Cloud computing is a better way to run your business. The cloud helps companies of all sizesbecome moreagile. Instead of running your applications yourself you can run them on the cloud where IT infrastructure is offered as a service like a utility. With the cloud, your company saves money: there are no up-front capital expenses as you don’t have to buy hardware for your projects. The massive scale and fast pace of innovation of the cloud drive the costs down for you. In the cloud, you pay only for what you use just like electricity.The cloud can also help your company save time and improve agility – it’s faster to get started: you can build new environments in minutes as you don’t need to wait for new servers to arrive. The elastic nature of the cloud makes it easy to scale up and down as needed. At the end of the day you have more resources left for innovation which allows you to focus on projects that can really impact your businesses like building and deploying more applications. “With the high growth nature of our business, we were looking for a cloud solution to enable us to scale fast. Think twice before buying your next server. Cloud computing is the way forward.” - Sami Lababidi, CTO, Playfish
  • Extending these benefits of cloud computing is the concept of the managed serviceA managed database service helps the database team focus on doing the tasks that differentiate their appplication
  • Amazon RDS is a fully managed serviceRDS was designed to be simple to deploy – a database can be provisioned in a few minutes, with very little effortRDS is easy to scale, both up and down, ensuring that the database can adapt quickly to the demands of the applicationRDS is reliable, with automated functions to constantly protect the data under managementAnd RDS is cost-effective compared with traditional databases – starting from less than cents an hourLet’s look at three aspects of RDS… productivity, performance and data protection
  • In addition to the price advantages of a managed cloud-based database service, RDS provides specific benefits in terms of productivity, performance and protection
  • By automating standard database management processes, RDS frees the DBA from low-level, undifferentiated effortWith RDS, tasks like deploying or scaling-up a new instance require only a few clicks effortBackground tasks like backups and patching are automatically enabled and constantly monitored with RDSAnd with automation, the potential for human error is reduced, providing a highly reliable database environmentRDS allows administrators to spend more time on important, differentiating activities like performance optimization and building new features
  • This validation has been very important for RDS, as the challenge of consistently high I/O is a significant one for a virtualized databaseCustomers deploying provisioned IOPS are also saving money from using resources more efficiently
  • Scaling reads is enabled by provisioning read replicas, then diverting read-only workloads to those instancesPerfect for both ad hoc and structured reporting, or ETL operationsThe read replica isolates the reporting workload away from the OLTP transactionsBy removing this burden, a master database has significantly more resources available, often enabling it to be scaled-down
  • Read replicas are independent database instances, connected by the replication streamRead replicas can be scaled-up like any other database – which is great for heavy reporting demandsRead replicas can be optimized to accelerate reporting – add indexes, tune memory and storage
  • There are several key challenges and advantages to database shardingFirstly, the application needs to be aware of the shards that exist and direct workload accordinglyIf a shard experiences excessive workload, it may need to be resharded – which may become a periodic taskThere are other challenges to sharding a database which a good plan will cover. These factors are managed by the application. For example:Keys need to be coordinated across different databases to ensure they are allocated consistentlyDistributed queries are fast, but if the results need to be aggregated, this is a task for the applicationCross-shard queries will be slow and must be avoided as much as possibleWhile challenging, sharding provides several important advantages to performance, cost and manageabilityFor the right type of application (esp those with heavy write workloads), sharding can provide very high scalability
  • DynamoDB achieves this performance without compromising data durability by staging writes in memoryData is written to disk in multiple data centers before writes are acknowledgedReads can be consistent or eventually consistent
  • DynamoDB is often deployed as the database underneath a new applicationBut increasingly, customers are moving high-scale workloads into DynamoDB, maintaining a hybrid database environment

Transcript

  • 1. Low Administration High Performance Databases in the CloudDavid PearsonBusiness Development Manager
  • 2. set-up operate EFFORTscale differentiated?
  • 3. differentiated effort increases the uniqueness of an application
  • 4. Database Ad security documentation, licensing & planning scripting & training coding 5% 5% install, upgrade, 40% 25% performancepatch and migrate tuning backup & recovery, data load & unload
  • 5. scaling up outinfrastructure reads writes
  • 6. infrastructure scaling Bigger Servers cpu + memoryMore Throughput storage + network
  • 7. how much capacity to deploy? Actual Usage Capacity Predicted Usage Waste Time
  • 8. benefits of No Up-FrontCapital Expense cloud Improve Agility & Time-to-Market computing deploy Pay Only forLow Cost What You Use Self-Service Easily Scale Up/Down
  • 9. managed databasesIn the cloud
  • 10. Amazon RDS easy to scale reliablefully managed relational database service simple to deploy cost-effective
  • 11. Amazon RDSproductivityperformanceprotection
  • 12. Amazon RDSproductivityperformanceprotection
  • 13. automationeliminatesundifferentiatedheavy lifting ~70% of a DBA’s time Deployment
  • 14. Amazon RDS Automatic backupproductivity Point-in-time-recovery Synchronous replication w/MAZ • Backup and DRperformance • Monitoring CloudWatch • High Availabilityprotection Automatic host replacement Automated failover and recovery with MAZ (production workloads)
  • 15. Amazon RDSproductivity • Push-Button Scalingperformance • Provisioned IOPS • Read Replicasprotection
  • 16. Push-Button Scaling scale up or down to the desired instance class scale up to an 8-core server with 64GB of RAM
  • 17. Multi-AZDeployment one-click DRProvisioned IOPSconsistent throughput to 10,000 IOPS
  • 18. Case study“in the past, we have invested hundreds of days in time- consuming and costly code-based performance tuning”“with Amazon RDS Provisioned IOPS we were able to exceed those performance gains in a single day” Adam Kierce - Director, Shine Technologies
  • 19. scalingREADS scale-out with master-slave one or more read architecture servers Use Cases Reporting and ETL Discrete read/write transactions (browsers vs buyers)
  • 20. scalingREADS Tech tips • Optimize master for OLTP and read slaves for table scans • Resize slaves as needed to boost reporting performance • Use short-term slaves to save cost during monthly reporting
  • 21. scalingREADS Amazon ElastiCache hot items small, frequently-accessed items are candidates for read caching Application Server • Reduce server-side latency to microseconds • Eliminate “hot spot” performance barriers • Offload heavy read activity from database
  • 22. Case study • 6 months to deploy a real-time, socially relevant magazineChallenge • Constantly changing user interests • Ability to change all hardware and software elasticallyArchitecture • Frequently changing system requirements • Complex queries on user and relevancy dataApp needs • Milliseconds count. So, does uptime Solution RDS MySQL + ElastiCache
  • 23. scaling WRITES Databaseshared-nothing sharding complex toarchitecture plan, implement and maintain splits large partitionable tables across multiple, smaller database servers
  • 24. scaling application is WRITES shard-aware Application Serveradditional challenges shards may require• key management periodic rebalancing• query aggregation A-G H-P Q-Z• cross-shard queries multiple, small servers are fast, inexpensive, and easy to manage
  • 25. status check… Low Administration High Performance Databases in the Cloud
  • 26. Performance
  • 27. DynamodNoSQL Database Service consistent, low latency SSD = single-digit ms  Fast & Predictable Performance  Seamless Scalability from hundreds to hundreds  Zero Administration of thousands of operations/sec
  • 28. new appSuper Bowl promotion new data storeMillions of interactions over arelatively short period of timeBuilt the app in 3 days, fromdesign to production-ready Fruit Ninja Frenzy facebook game Moved game data into DynamoDB Grew from 1 million to 8 million active monthly users in two weeks
  • 29. Scaling Relational DB’s with DynamoDB move simple, high-scale workloads Application Servercandidates for workload migrationtables with high transaction volumes (esp writes)primary key-only is preferred (one non-pk index ok)no dependencies (fk’s, triggers, procedures)
  • 30. Summary • Scaling database performance requires EFFORT • Differentiated EFFORT is a good investment • Scale up with more hardware • Scale reads and writes across multiple servers • Amazon RDS makes it easy to set-up, operate and scale relational databases • DynamoDB provides an option for existing and new apps to achieve extreme levels of performance
  • 31. Get started today AWS Free Usage Tier http://aws.amazon.com/freeaws.amazon.com/dynamodb aws.amazon.com/rds aws.amazon.com/elasticache
  • 32. questions? thank you