the myriabig data management and analytics system and...
TRANSCRIPT
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Jingjing Wang,TobinBaker,MagdalenaBalazinska,DanielHalperin,BrandonHaynes,BillHowe,DylanHutchison,Shrainik Jain,RyanMaas,Parmita Mehta,DominikMoritz,BrandonMyers, JenniferOrtiz,Dan
Suciu,AndrewWhitaker,Shengliang XuDEPARTMENT OF COMPUTER SCIENCE &ENGINEERING
UNIVERSITY OF WASHINGTONhttp://myria.cs.washington.edu
TheMyria BigDataManagementandAnalyticsSystemandCloudService
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Acknowledgments
TheMyria Team!Oursciencecollaborators!!• AndrewConnolly,TomQuinn,SarahLoebman,ArielRokem,GingerArmbrust,Yejin Choi
Oursponsors!!!• NationalScienceFoundation,Moore&SloanFoundations,WashingtonResearchFoundation,eScience Institute,ISTCBigData,Petrobras,EMC,Amazon,andFacebook
2MagdalenaBalazinska- UniversityofWashington
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BigData
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Management
Analytics
Efficient Easy
ScienceApps
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GoalsoftheMyria stack• Advancestate-of-the-artinbigdatasystems• Focusonefficiencyandproductivity• Testonrealapplicationsandsupportrealusers
Deliverables:• Builtanewbigdatamgmt &analyticssystem• DeployedandoperateMyria asaservice• Sourcecodeanddemoservice:http://myria.cs.washington.edu
4MagdalenaBalazinska- UniversityofWashington
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5MagdalenaBalazinska- UniversityofWashington
Myria hasbeendevelopedandisoperatedby• DatabaseGroupintheComputerScience&EngineeringDepartmentatUW
• UWeScience Institute
Co-PIs:DanSuciu andBillHowe
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Myria Demo
MagdalenaBalazinska- UniversityofWashington
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Myria CloudService
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Serviceavailablethroughprojectwebsite
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AnalysisintheBrowserwithMyria
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Declarative-imperativeanalysiswithMyriaL andPython
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Myria OperatesDirectlyonDatainS3
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Forefficientprocessing,cachesqueryresultsinternallyincluster
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MyriaL isImperative+DeclarativewithIterations
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Myria ProvidesDetailsofQueryExecution
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Myria ServiceincludesJupyter Notebook
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Jupyter notebookavailabledirectlywithMyria service
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Myria SupportsPythonUser-DefinedFunctions
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DatafromtheHumanConnectomeproject
MRIdataanalysis
PythonUDFsenablerunninglegacycodeandcomplexanalyticsbeyondSQL/MyriaL
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UsersCanDeployOwnService
pip install myria-cluster
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myria-cluster create [OPTIONS] CLUSTER_NAME
myria-cluster stop/start/destroy […]
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ExampleMyria Applications
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NeuroscienceAstronomy
NaturalLanguageProcessing
PicturefromLeilaZillesMyMergerTree Screenshot
DatafromtheHumanConnectome project
Oceanography
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ps3.fcs…subset
FSC
692-40
RED
fluo
resc
ence
FSC
Picoplankton
Nanoplankton
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P35-surf
FSC Small Stuff
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0-3
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IS
Ultraplankton
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P35-surf
FSC Small Stuff
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2-4
0 litt
le s
tuff
Phytoplankton
Prochlorococcus
Bibliometrics
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Myria Internals
MagdalenaBalazinska- UniversityofWashington
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Myria Polystore Stack
Browser SpecializedServices
RACO
MyMergerTree
QueryTranslation,Optimization,andOrchestration
Python/Jupyter
Parallel, Iterative, and Elastic Query
Execution
MyriaXMPI
SciDB
Graphs
NoSQL
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Myria’s DataModelandQueryInterface• RelationalAlgebraCompiler(RACO)
– Myria’s queryoptimizerandfederator• RACOcore:relationalalgebraextendedwith
– Iterations formulti-passalgorithms– Flatmap toexplodenon-1NFattributevaluesintomanytuples– Stateful apply forwindowedandneighborhoodfunctions
• Querylanguage:MyriaL (Imperative+Declarative)– Eachstatementisdeclarative(SQL,comprehensions,functioncalls)– Statementsarecombinedwithimperativeconstructs
• Variableassignment• Iteration
• PythonUDFs/UDAs– Minimizebarrierstoadoptionandrunlegacycode
• PythonAPI– FluentAPIwithPythonlambdafunctions
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Polystore Optimization• Rule-basedopt.withthreetypesofrules
– OptimizelogicalMyria algebraplans– Translatelogicalplansintoback-endspecificphysicalplans– Optimizeback-endspecificphysicalplans
• Toaddanewback-end,developermustspecify– Treerepresentationofquerylanguage– RulesthattranslateMyria algebraintothisrepresentation– Administrativefunctionsincludingonetosubmitqueries
• Datamodelindependence– Myria hidestheexistenceofvariousback-ends– UserswriteMyriaL scriptsassumingrelationalmodel– Back-endsincludeselectarray,graph,andkey-valuesystems
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FederatedQueryExecution
Federatedplansrequirefastdatamovement
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Worker1
Worker"
SourceDBMS
User
t = scan(data)x = distances(t,t)export(x,'db://Target')
x = import('db://Source')u = cluster(x)
WorkerDirectorysource.w1à target.wmsource.wnà target.w1
[1] [2]
[3]
[4]
Worker1
Worker#
TargetDBMS
…
UserorOpt.
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DataMovementwithPipeGen
A+
DBMSBytecode
UnitTests
PipeGen
Pipegen-EnabledDBMS
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PipeGen:DataPipeGeneratorforHybridAnalyticsBrandonHaynes,AlvinCheung,andMagdalenaBalazinska.SOCC2016.
DBMSbytecode
DBMS with optimizeddata pipe
PipeVerify:Verification
IORedirect: I/O RedirectorIdentify
File Open Expressions
InjectConditional Redirection
InstrumentUnit Tests
InstrumentUnit Tests
Data Flow Analysis
Type Substitution
FormOpt: Format Optimizer
Data Pipe Type
Augmented Types
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PipeGen’s Performance
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16-nodeclusterwith16workers/tasksTransfer10^9tupleswith4ints and3doubles
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Myria Polystore Stack
Browser SpecializedServices
RACO
MyMergerTree
QueryTranslation,Optimization,andOrchestration
Python/Jupyter
Parallel, Iterative, and Elastic Query
Execution
MyriaXMPI
SciDB
Graphs
NoSQL
MagdalenaBalazinska- UniversityofWashington 23
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MyriaX EngineandCloudDeployment
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AmazonEC2Instance
JSONqueryplans&APIcalls
CoordinatorREST Interface
Worker
HDFSAmazonEBSVolumesand/orLocalStorage
RDBMS
AmazonS3
Worker
YARNContainer
Worker
YARNContainer
YARNContainer
… …
YARNContainer
AmazonEC2Instance
RDBMS RDBMS
AmazonEC2Instance
… …
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MyriaX Overview
25MagdalenaBalazinska- UniversityofWashington
• Datastorage– ReaddatafromS3,HDFS,localfiles– ParseCSV,TSV,andvariousscientificfileformats– StoredatainlocalrelationalDBMSinstances
• Faststoragewithphysicaltuning(indexing,hash-partitioning)
• Queryexecution– FundamentallyaparallelDBMS
• Fast,pipelinedqueryexecution– Butschedulingmoreflexibletosupportelasticity– Novelfeatures:Multiwayjoinsanditerations
• Resourcemanagement– ExecutesontopoftheYARNresourcemanager
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EfficientIterativeProcessing
• Userspecifiesquerydeclaratively– SubsetofDatalog withaggregation
• Generateefficient,shared-nothingqueryplan– Smallextensions to existingshared-nothingsystems
• Planamenabletoruntimeoptimizations– Synchronousvsasynchronous– Differentprocessingpriorities
• OptimizationssignificantlyaffectperformanceMagdalenaBalazinska- UniversityofWashington 26
AsynchronousandFault-TolerantRecursiveDatalogEvaluationinShared-NothingEnginesJingjing Wang,MagdalenaBalazinska,andDanielHalperin.PVLDB 8(12):1542-1553(2015)
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Myria’s OptimizedIterationsExample
Declarative QueryE = scan(jwang:cc:graph);V = select distinct E.$0 from E;doCC := [$0, MIN($1)] <-[from V emit V.$0 as x, V.$0 as y] +[from E, CC where E.$0 = CC.$0 emit E.$1, CC.$1];
until convergence;store(CC, CC);
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AsynchronousandFault-TolerantRecursiveDatalogEvaluationinShared-NothingEnginesJingjing Wang,MagdalenaBalazinska,andDanielHalperin.PVLDB 8(12):1542-1553(2015)
//Canhave multiple relations//with recursive dep.
IDBController(CC) Scan(Edges)
Join
Scan(Edges)
Compiled to a Distributed Query Plan
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PerformanceComparisonwithSparkDeclarativeQuery
(subsetofDatalog withagg.)
Shared-NothingQueryPlanIn-MemoryProcessing
Synchronous
Asynchronous
PrioritizeNewData PrioritizeBaseData
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# of Workers8 16 32 64
0
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100
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200
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Que
ry T
ime
(Sec
onds
)
Spark Myria, Sync Myria, Async
(GraphX) 28
ConnectedComponents– Twittersubgraph221millionedgesand5millionvertices
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Myria Polystore Stack
Browser SpecializedServices
RACO
MyMergerTree
QueryTranslation,Optimization,andOrchestration
Python/Jupyter
Parallel, Iterative, and Elastic Query
Execution
MyriaXMPI
SciDB
Graphs
NoSQL
MagdalenaBalazinska- UniversityofWashington 29
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CloudOperationinMyria
OrpointtodatainAmazonS3
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Myria’s PersonalizedServiceLevelAgreements
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ChangingtheFaceofDatabaseCloudServiceswithPersonalizedServiceLevelAgreementsJenniferOrtiz,VictorT.Almeida,andMagdalenaBalazinska.CIDR2015
MagdalenaBalazinska- UniversityofWashington
WorkloadCompressionintoPSLA
WorkloadGeneration
QueryClustering
TemplateGeneration
Cross-TierPruning PSLASchema
RuntimePrediction
Myria’s SLAgeneration
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Myria’s PerfEnforce Subsystem
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PerfEnforceDemonstration:DataAnalyticswithPerformanceGuaranteesJenniferOrtiz,BrendanLee,andMagdalenaBalazinska.SIGMOD2016.
MagdalenaBalazinska- UniversityofWashington
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MagdalenaBalazinska - UniversityofWashington
Myria’s PerfEnforce Subsystem
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Clustersizechangesduringquerysession
PerfEnforceDemonstration:DataAnalyticswithPerformanceGuaranteesJenniferOrtiz,BrendanLee,andMagdalenaBalazinska.SIGMOD2016.
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AutomaticDataPipes
ImageProcessingPerf.Debugging
CloudPSLAs
Myria CloudOperation
PerformanceGuarantees ElasticMemory
EfficientMulti-Join IterativeQueries
EfficientProcessing&ComplexAnalyticswithMyriaX
DataSummaries
Myria’s InnovationsSummary
Myria Polystore
FederatedAnalytics
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Conclusion• Highlyexpressive
– MyriaL (RA+iterations)&Python• Polystore withhybridanalytics• Highperformanceonvarietyofqueries• Availableasaservice
– Focusonlowbarriertoentry– Andturningusersintoself-sufficientexperts– Alsofocusontheserviceprovider:OperateMyria
• Sourcecodeandmoreinfo(includesvideos)http://myria.cs.washington.edu/
35MagdalenaBalazinska- UniversityofWashington