MySQL In the Cloud - Percona...• Examples: AWS EC2, S3, EBS IaaS (Infrastructure as a service) •...
Transcript of MySQL In the Cloud - Percona...• Examples: AWS EC2, S3, EBS IaaS (Infrastructure as a service) •...
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©2017Percona1
PeterZaitsev
MySQLIntheCloudMigration,BestPractices,HighAvailability,Scaling
CEOMoscowMySQLUsersGroupMeetupJuly11th,2017
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Letmestart….
WithsomeQuestions!
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QuestionOne
HowManyofyouarerunningMySQLInthe
Cloud?
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©2017Percona4
QuestionTwo
AreyourunningitinPublicCloud?Private
Cloud?Both?
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©2017Percona5
QuestionThree?
AreyouusingDBaaSsuchasAmazonRDSorGoogleCloudSQLorrunningyourown?
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QuestionFour
AreyouusingContainers?(SuchasDocker)
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LetsCoversomeBasics
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Whatis“Cloud”
DynamicProgrammableInfrastructure
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PublicandPrivate
Public
•InfrastructureSharedwithotherUsers
•AmazonAWStypicalexample
Private
•InfrastructurePrivateforcompany
•OpenStackinstallationtypicalexample
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AllofthoseXaaS• WorksinInfrastructurelevel:“Compute”,“Storage”,“Network”
• Examples:AWSEC2,S3,EBS
IaaS(Infrastructureasaservice)
• ProvidesDatabaseService(InstancesorClusters)touse• Examples:AmazonRDS,GoogleSpanner
DBaaS(Databaseasaservice)
• Providesfullplatformforyourapplicationdevelopment• Examples:Heroku,AmazonElasticBeanstalk,OpenShift
PaaS(Platformasaservice)
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©2017Percona11
RegionsandAvailabilityZones
Region
• SpecifiesGeographicRegion• Hierarchy- NorthAmerica–West– California
• HighLatencybetweenRegions
• CompleteIsolation
AvailabilityZone
• Islocatedintheregion• Reasonablyisolatedfromeachother
• MediumLatencybetweenAZ
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©2017Percona12
MakingitVisual
Source:https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html
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©2017Percona13
TopCloudProviders
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Technologiestobeawareof
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DecisionstoMake
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Shouldyoumovetothecloud?
Thisisdecisionyourarelyhave
Programmableinfrastructureisthefuture
Virtualizationoverheadisgoingdown
SomecloudsproviderssupportBareMetal
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Public?Private?Hybrid
PublicCloud
• Agility• Scalability• Costs• SmallandMediumBusinesses
PrivateCloud
• Control• Costs• LegacyIntegration
• SomeEnterpriseCompanies
HybridCloud
• InfrastructureusingBoth
• Cangetbenefitsofboth
• Atthecostofextracomplexity
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©2017Percona18
SinglevendorvsMultiVendor
SingleVendor
•Useallfeaturesvendorhastooffer
•DangerofVendorLockIn
MultiVendor
•Havetouse“lowestcommondenominator”
•AvoidVendorLockIn
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DBaaS
DBaaS(ieAmazonRDS)
• Easier• Takesoffsomeoperationalpains
• LessFlexible• MoreExpensive• MoreLock-In
IaaS(ieEC2+EBS+S3)
• Hardertorollyourown• Operationsonyourown(oryourpartner)
• MoreFlexible• LessExpensive• LessLock-In
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OpenSourceintheCloud
OpenSourceCompatibleisnotsameasOpen
Source
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Migration
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KeepitSimple
Donottrydoingupgradeatthesametimeasmigration
Exactlysameminorversionisoptimal
Samemajorversion- must
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MovingtoIaaSCloud
GeneralPracticesasinDatacenterMigrationsapply
EasytouseBinaryBackups
Slave_compressed_protocolorcompressioninVPN
SupportutilitiesmayneedtobemodifiedforEBS/S3
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MovingtoDBaaS• Mysqldump• Mysqlpump• Mydumper
Needtousedatabasedumptocopy
• CALLmysql.rds_set_external_masterCansetexternalslave
(AmazonRDS)
• Donothavedirectaccesstophysicalbox• Donothaverootuser
MonitoringBackupmayneedrevision
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©2017Percona25
NewWithAmazonRDSAurora
CanusePerconaXtrabackup’sBackupto
seedtheclusterhttp://amzn.to/2pk6Iq7
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MovingfromDBaaS
LogicalDatabasedumpaswell
ReplicationsupportedforMigrationonly
ConfigureBinaryLogRetentionmysql.rds_set_configuration
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BestPractices
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BeingCostEfficient
Knowyourcloudvendorpricingpolicies
Lookbeyond“compute”pricing
BestPrice/Performanceconfigurationinthecloudislikelytobedifferent
AWS:ReserveInstances
AWS:SpotInstances
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GuaranteeversusBurst
Guaranteed
•Performanceresourceis“guaranteed”tohaveinworstcasescenario
•Thisiswhatyoucanplanfor
Burst
•Performanceresourcecanprovide
•Typicallynotguaranteed•Typicallylimitedinlengthtopreventabuse
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Network
UnderstandApplication-DatabaseNetworkLatency
SameAZOptimal;SameRegionMusthave
10GbNetwork
Understandnetwork“jitter”
Latencyiscriticalformostapplications
Bandwidthcanbeimportantfordumpsandbatchjob
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CPU
Samewheneveryou’reinthecloudornot
MySQLusessinglethreadforsinglequery
Multi-Coregivesgoodscalabilityfor“Web”workloads
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Memory
Usemainlyasacache
VeryimportantforPerformance
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StorageInstanceLocal
Storage
• Mayormaynotbeavailable
• NotHighlyavailable
• MaybeinexpensiveandhighPerformance
CloudBlockStorage
• Reliable• Remote• SeparatelyPrices• EBSonAWS
File/ObjectStorage
• StoreFiles/Objects• Nointeractiveblocklevelaccess
• S3onAWS
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ThingstoNote
Youcan’tgetanycombination
EBSPerformancedependsontheinstancesize
ProvisionedIOPsforOptimalPerformance
Glacierstorageforoldbackups
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OperatingSystem
ConsiderCloudOptimizedLinuxVersions
AtveryleastuseRecentLinuxVersions
“CloudOnly”Linuxmightbeinconvenientfordevelopment
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MySQLVersionandConfiguration
UseRecentVersion
DonotcountongoodDefaults
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DBaaS
Thereisessentiallysamesystemsunderneath!
MostofsamepracticesApply
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DBaaS isnotalwaysfaster
Source:https://twindb.com/rds-vs-aurora-vs-ec2-benchmark/
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©2017Percona39
HighAvailability
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YourChoices
Rollyourown
UseDBaaS
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ThingstoConsider
Youhavelesscontrolorvisibilityintotheinfrastructure
ThingsasIPtake–overmightnotwork
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LoadBalancers
CloudLoadBalancer(ElasticLoadBalanceratAWS)
HAProxy
ProxySQL
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©2017Percona43
MaintainingcopiesofData
MySQLReplication
MySQLGroupReplication
PerconaXtraDBReplication(PXC)andGalera
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©2017Percona44
WhyPerconaXtraDB ClusterintheCloud
Read/Writetoanynodeworksgreatwithsimpleloadbalancers
AutomaticProvisioningandAutoScaling
Canrunwithlocalinstancestorage
CandeployacrossmultipleAZ
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Scaling
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ScalabilityintheCloud
“Better”
•DuetocloudoptimizedoptionslikeAmazonAurora
“Worse”
•Duetorestrictedhardwarechoices
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©2017Percona47
ScalingHow
ScaleUp
•VerticalScaling•ScalewiththeHarwareSize– CPUs,Memory,Storage
ScaleOut
•HorizontalScaling•Scalebyaddingnodes
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©2017Percona48
BadreputationofScalingUp…but
•3-5TBdatabasesize•100K+queries/sec•5M+rowsread/sec•100Krowsmodified/sec
ReasonablecommodityMySQL
ServerCanhandle
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ScalingWhat?
Reads
Writes
DataSize
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©2017Percona50
ScalingReads
Replication
Caching
MovingsomeloadfromMySQL
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ScalingWrites
NewMySQLVersions
ParallelReplication
TokuDB
FunctionalPartitioning
Sharding
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NewinSharding
ProxySQL
Vitess
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ScalingDataSize
FunctionalPartitioningandSharding
DataArchiving
TokuDBforCompression
OftenOperationsdrivethisneedsnotAppPerformance
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DATABASE PERFORMANCEMATTERS
DatabasePerformanceMattersDatabasePerformanceMattersDatabasePerformanceMattersDatabasePerformanceMattersDatabasePerformanceMatters