Top 10 Performance Tips for Obiee Neoaugoct11

8/10/2019 Top 10 Performance Tips for Obiee Neoaugoct11

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PremierITProfessionalServiceandSolutionProviderofOracleApplicationsandTechnologies

* SelectedbyOracleasBIPillarPartner

Boston New York Atlanta Germany India

AppsAssociatesLLC

EBusinessSuite

Consulting EnterpriseApps

ManagedServices

OBIEE,PreBuiltBI

Analytics HyperionEPM

Middleware&

Integration

Infrastructure

Services Microsoft.NetDev

&Support

AppsUniversity

HighValueROI

BestPractice

Methodology

Local/Global

Service

Delivery SubjectMatter

Experts


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Disclaimer

Thefollowing is intendedtooutlineSpeaker's ideason

thetopic.Itis intendedfor informationpurposesonly,

andmay

not

be

incorporated

into

any

contract.

It

is

not

a commitment to deliver any material, code, or

functionality,andshouldnotbereliedupon inmaking

purchasingdecisions.


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Agenda

OBIEESystemArchitectureOverview

PerformanceExpectations

Approachto

Performance

Issues

TuningTips

QuestionandAnswers


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OBIEEArchitecture


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TypicalBIFarm


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Agenda



Approachto

Performance

Issues

TuningTips

QuestionandAnswers


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ResponseTime

OptimizedDesign

BIServer

Performance

DatabasePerformance

IterativeApproach


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CommonIssues

ReportRunningforLongtime

OBIEENotResponding

Loggingin

BIPublisherburstingdelayed

SpecificiBotfailed


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Agenda



Approachto

Performance

Issues

TuningTips

QuestionandAnswers


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SourcesforDebugging

Logs

NQServer.log

NQQuery.log

Saw0.log

JavaHostLog

ApplicationServerLog

Schedulerlog

TraceFiles

UsageTracking

PerformanceCounters

Networktrace

ResourceUtilizationinEM


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Agenda



Approachto

Performance

Issues

TuningTips

QuestionandAnswers


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Report Modeling

ColumnFilters

UnionReports

NonCacheable

SQL

Element

LargeResultSets

PromptsonFactTables


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DataModeling

SnowflaketoStar

Detailvs.Aggregatetables

OpaqueViews

and

Materialized

Views

ManagingJoins

DrivingTable

OuterJoins

ForeignKeyvs.ComplexJoininLogicalLayer


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Infrastructure

CPU

Chips,Cores,Cores/Chip,Multithreading,Clock

Speed Memory

Emulation,SizeVM

Disk

RAID,I/OController

Network

Latency,Compression


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OperatingSystemTuning

ReleaseTCP/IPclosedconnectionsfaster

TuneTCPWaittimes

IncreaseFile

descriptors

IncreaseBacklogconnectionsqueue

AdjusttheMaxUserPort

PowerOptionstoHighPerformance

Enable/3GBSwitchfor32BITOperatingsystems


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J2EEServerTuning

ConfigureeachapplicationonseparateOC4J

container.

ConfigureMultiple

JVMs

TuneHeapMemorySize


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TuneHTTPServerCompression/Caching

WhyuseWebServerCompression/CachingforOracle

Business

Intelligence? BandwidthSavings

Improvesrequest/responselatency

Compression/Caching


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BenchmarkswithCompression

11g

Pages HTTPResponse

Size (Kbytes)

HTTPResponseSizewithCompression

(KB)

Compressionratio

(%)

Dashboardwith3

Tablesand3Charts

(eachtablehas

5~10rows,3~5

cols)

297.5 39 86

Dashboardwith1

Table(25rows,10

columns)

210 28.5 86

Dashboardwith

1

LargeTable

(300rows,10

columns)

938 79 91


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DatabaseTuning

InitializationParameters

IndexStrategy

OptimalRedo

log

sizing

Statistics

Layout


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DatabaseTuning


PARALLEL_DEGREE_POLICY

OPTIMIZER_MODE

OPTIMIZER_INDEX_COST_ADJ

OPEN_CURSORS

MEMORY_TARGET


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Memory_Target

MEMORY_SIZE

MEMORY_SIZE_FACTOR ESTD_DB_TIME ESTD_DB_TIME_FACTOR VERSION

180 0.5 458 1.344 0

270 0.75 367 1.0761 0

360 1 341 1 0

450 1.25 335 0.9817 0

540 1.5 335 0.9817 0

630 1.75 335 0.9817 0

720 2 335 0.9817 0

SQL>select*fromv$memory_target_adviceorderby

memory_size;


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DatabaseTuning


PARALLEL_DEGREE_POLICY

OPTIMIZER_MODE

OPTIMIZER_INDEX_COST_ADJ

OPEN_CURSORS

MEMORY_TARGET

Processes

USE_LARGE_PAGES


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HugePagesinLinux

Pre

Post


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DatabaseTuning

IndexStrategy

GoaltoOptimizeQueryperformance

UnderstandStar

Schema

Queries

Sohowdowegoaboutoptimizingthesequeries?

Tuningastarqueryhastwoimportantcriteria,theyare:

Createabitmap

index

on

each

of

the

foreign

key

columnsinthefacttableortables

Settheinitializationparameter

STAR_TRANSFORMATION_ENABLEDtoTRUE.


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DatabaseTuning

OptimalRedologsizing

Thesizeoftheredologfilescaninfluence

performance. Largerredologfilesprovidebetterperformance.

RuleofthumbincreaseRedologsizesothatnot

morethan

3log

switches

per

hour.


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DatabaseTuning

Statistics

GatheringTableandIndexstatisticsiskeyforoptimizerto

buildoptimalexecutionplan.

GatherWorkloadstatisticsonSourceandTargetdatabases.

Desiredsystemstatisticsarecomputedwhendatabaseis

undersignificantworkload.

BIAPPSCustomers

can

automate

gathering

index

statistics

duringETL

Editthecustomsql.xmlunderDAC_HOME

D:\app\oracle\product\10.1.3.4PRODDAC\bifoundati

on\dac\CustomSQLs\customsql.xml

Setcascade=>True


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DatabaseTuning

TablespaceLayout

IsolatetablespaceforFACTandDIMENSIONtables

IsolateIndex

tablespace

for

FACT

and

Dimension

tables

TEMPandUNDOdatafilesshouldbeonRAID1for

fasterI/O


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BIServer


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BIServerTuning..

Themostimportantperformanceandscalability

featuresare:

CONNECTIONPOOLING

QUERYREUSEANDCACHING

ConfigurationParameters

StatementCache


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BIServerTuning..

ConnectionPooling

BIServercanbeconfiguredwithoneormoreconnection

poolsforeachdatabase.

Specificusersorgroupscanbeassignedtospecific

connectionpools.

Anadministratorcangivecertaingroupshigherpriority.

Limitmaximum

number

of

connections

to

keep

open.

Thissettingwillpreventdatabaseserversfrombeing

overloaded.


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BIServerTuning..

Query/CacheTuning

OracleBIServertointelligentlyreusepreviousqueryresults,acapabilitycalled"querycaching.

ORACLE BI Server

Database

CACHING

Web Server BI Server

Database Server


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BIServerTuning

BIServerConfigurations

IncreasesessionlimitbasedonClientconnections.

Defineproper

limits

for

server

and

database

threads.

Usefasterdiskstodatacachestorage

Cacheaggregate

rollup

hits

Definepropercacheentrysize

DefineTemporarypathtofasterdisk

Ex./dev/shm onLinux


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BIServerTuning

StatementCache

TUNETHESTATEMENTCACHESIZE

IfOracledatabaseisusedsetStatementCacheSizeto0

oralower

value.

OracleJDBCDriverconsumeslotofmemorywhencalling

statementsfromtheWeblogicServerCache.

Setting

the

statement

cache

size

to

0

will

disable

WeblogicServerCache.

Forallotherdatabasesex.Sqlservermaintainthe

defaultvalueforStatementCache.


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PartitioningandMVs

PartitionAdvantages

PartitionPruning

Partition

Wise

Joins ReduceMaintenancetimesforIndexes

ImproveWebqueryperformance

Materializedviewsspeedupqueryperformance

BuildSummaryviewsforexpensivejoinsandaggregation

operations

Partitionmaterializedviewstotakeadvantageas

partitiontables


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PartitioningandMVs..

CompressionforMVs

Compressioncanbeemployed

Reducesthe

storage

space

Fasteraccessofdata


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SpeakerInformation

NarasimhaRaoMadhuvarsuLV

Email:[email protected]

BharathTerala

Email:[email protected]


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Q


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Contact:

BillSaltys,VPBusinessDevelopmentandOperations

Email: [email protected]

Phone: (978)3990230(O)

AppsAssociatesLLC

40Nagog

Park,

Acton,MA01720

USA


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Date post:	02-Jun-2018
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Top 10 Performance Tips for Obiee Neoaugoct11

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