따라올수없는성능 Oracle 11g의새기능 - dbguide.net · 따라올수없는성능– Oracle 11g ... Apps Customizable Apps ... -유지정책에따른과거Data purge Archive

따라올 수 없는 성능 – Oracle 11g의 새 기능

류점수 책임 컨설턴트 ([email protected])

T h i l S l ti C ltiTechnical Solution Consulting

한국 오라클 주식회사

Agenda

Introduction<I t Pi t H >Manage ‘Change’

High Availability

<Insert Picture Here>

Automatic System ManagementData management New Technologies for PerformanceEtc

2Copyright© 2008, Oracle. All rights reserved.

30 Years of Active Data GuardReal Application Testing

Application Integration Architecture

Database Vault/Audit VaultInnovation

O l D t G dGrid Computing

Self-Managing DatabaseFlashback Database

First Internet ApplicationsFirst Comprehensive CRM Suite

Real Application ClustersOracle Data Guard

2000’s

I d t S ifi B i A li ti

Partitioning SupportBuilt in Java VM

pp

1980’s Full Applications Implementation Methodology

Data Warehousing OptimizationsMultimedia Support

Object Relational SupportIndustry-Specific Business Applications

1990’s1970’s

Cluster and MPP SupportDistributed SQL & Transaction Support

Parallel Operations

g pFirst Unix-Based Applications

3Copyright© 2008, Oracle. All rights reserved.Commercial SQL ImplementationPlatform Portability

Client/Server SupportMulti-version Read Consistency

pp

Oracle: The Database Market Leader

Overall database market share leaderLeader OLTPLeader Data WarehousinggLeader on LinuxLeader on UNIXLeader TPC-C OLTP PerformanceLeader TPC-H DW PerformanceLeader TPC Price/Performance

- Linux and Windows


Top Customer’s Concerns

Increasing Rate of Change and Pressure to Move Faster

Rate of Change

Cost

24/7 Availability

Complexity

Business Value

Security

Compliance

Alignment

Process integration

Outsource

0 10 20 30 40 50 60

Biggest Pressure

Second Biggest Pressure

0 10 20 30 40 50 60

응답비율

Source : Gartner (December 2006)


<Insert Picture Here> Manage ‘Change’Manage Change

* The New Paradigm ;

Oracle Database 11g Manage Change

** Real Application Testing

Th B t S l ti f M i Ch !The Best Solution for Managing Change !


<Insert Picture Here>

Ch !!The Big Challenge ;

Change !!시스템변경의어려움

g복잡해져가는 Enterprise 환경과시스템환경변화그러나, 재현하기어려운실제Workload운영전에는알수없는 R l환경테스트“Oracle Database 11g will focus on helping

you preserve order amid change”운영전에는알수없는 Real 환경테스트높은변경비용

you preserve order amid change


Lifecycle of Change Management

Test

Make Change Diagnose & Resolve Problems

Set Up TestEnvironments

Pro ision forProvision for Production

Identify Patches & Workarounds

Diagnose & Manage ProblemsWorkarounds


What is Real Application Testing

실제운영 DB의부하를테스트환경에서재생함으로써, 변화된상황(테스트환경)을미리분석 진단하고보완하는솔루션변화된상황(테스트환경)을미리분석·진단하고보완하는솔루션

Enterprise Edition OptionEnterprise Edition Option

2 Feature- Database Replay (DB Replay)- SQL Performance Analyzer (SPA)


Database Replay

Application 독립적인실제테스트환경구축

Replay Driver

Replay에는

clients

Middle Tier

응용프로그램환경이필요없음

부하로드

캡처 재생 변경된테스트환경

PRODUCTION TEST

파일


Supported ChangesClientClient

…Client

Changes Unsupported

Middle Tier

Changes Supportedg pp•Database Upgrades, Patches

•Schema, Parameters

•RAC nodes InterconnectRecording of

•RAC nodes, Interconnect

•OS Platforms, OS Upgrades

•CPU, Memory Storage

External Client Requests

•Storage

•Etc.


Database Replay Summary Report


Why DB Replay?

To:From:

Complete workflowsPartial workflows

Production workloadsArtificial workloads

Complete workflowsPartial workflows

Days of developmentMonths of development

AutomatedManual intensive

150 10Low riskHigh risk150Days

10Days

Copyright© 2008, Oracle. All rights reserved. 13

SQL Performance Analyzer

Optimzer 통계및 Parameter 변화A li ti U d 테이블디자인변경 I d 변화 SQL튜닝등Application Upgrade : 테이블디자인변경, Index변화, SQL튜닝등OS, H/W, DB 환경변화

ClientClient

…Client

Production Test

……Capture SQL

Middle Tier Re-execute SQL Queries

Use SQL Tuning Oracle DB

gAdvisor to tune regression

Storage


SPA Report


<Insert Picture Here> High AvailabilityHigh Availability

* Active Data Guard

Leading Maximum AvailabilityLeading Maximum Availability

& used to Managing Change *& used to Managing Change


What is Data Guard ?

N t k I/OData Guard just Transport Redo

Network I/OData Guard Apply Services

Control

Production DBMS Standby DBMSNetwork I/O

Control7X less

dataControl

Production DBMS Standby DBMSNetwork I/O

A l

7X less data

Files fil

OnlineLogs

Archive

Files fil

Standby Redo LogsArchive

volume*

27X fewer

Files fil

OnlineLogs

Archive

Applyvolume*

27X fewer Archive Logs

Flashback LogsUpdates

Archive LogsFlashback Logs

network I/Os*

Archive Logs

Flashback LogsUpdates

network I/Os*

DataFiles

SYSTEM

DataFilesSYSTEM

DataFiles

SYSTEM USERTEMPUNDO

USERTEMPUNDO

USERTEMPUNDO


Why Called ‘Active’ Data Guard in 11g?

Physical Standby의실시간질의

Concurrent

Continuous Redo Shipment and Apply

Real-Time Query

Physical Standby Database

Primary Database

p pp y

Redo적용과동시에 Physical Standby에서 Read-Only Query가가능Redo 적용과동시에 Physical Standby 에서 Read-Only Query가가능- Query 결과의정합성보장-모든데이터형식적용가능하나, Logical Standby와같은 DML작업은불가


Snapshot Standby를이용한테스트환경구축

Physical Standby ApplyPhysical Standby Snapshot Standby테스트를위해쓰기가능하게 OPhysical Standby Apply

Logs-테스트를위해쓰기가능하게 Open- alter database convert to snapshot standby;

Back out Changes

Open Database

Physical Standby로복귀용이-테스트자료자동제거- alter database convert to physical standby;

Snapshot Standby Perform

p y y;

Data 유실없는테스트유지p y

Testing기타

-본래의 DR기능외에도과부하가걸릴수있는

Continuous Redo Shipping Reporting 용도로사용할수있음.- Index구조변경, SQL 튜닝등Application테스트수행활용


Use With Real Application Testing1. Convert to Snapshot Standby

2. Use Snapshot Standby

1 2

3. Convert to Physical Standby …Replay Driver

Replay Driver

Time

1 2Apply Redo

StandbyTime

Read/Write Read/Write Read/Write

3

Apply Archive Logs

StandbyStandby TimeStandby


<Insert Picture Here> Automatic SystemAutomatic System Management

* A t ti f T i &* Automatic performance Tunning &

Database ManagementDatabase Management

*


Self-Managing Database

Auto-TuningTuning

Advisory

Instrumentation


Automatic Memory Tuning

UntunableUntunable Untunable

10g &1 1g 11g

Memory TargetPGA

FreePGA Target

PGA

Free SQL Areas

PGA

PGA Target

Buffer cache

SQL Areas

SGA Target Buffer cache

SQL Areas

Buffer cacheSGA Target

Buffer cache

Large poolLarge pool

Large pool

Shared pool

Java poolStreams pool

Shared pool

Java poolStreams pool

Shared pool

Java poolStreams poolStreams pool

Other SGA

Streams pool

Other SGA

OLTP BATCH BATCH

Streams pool

Other SGA


Automatic SQL Tunning

PackagedApps

Customizable Apps

응답시간, 처리량, 처리주기등을기준으로과부하 SQL을자동선별Apps Apps

A t ti SQL T i

High-Load SQL

AWRNightly

과부하 SQL을자동선별

SQL Profile생성으로 SQL 자동튜닝

Automatic SQL Tuning Index, Stats,

Structure Analysis

Nightly

SQL Profiling

튜닝한 plan이성능향상되었는지검증하기위한자동테스트실행

Test Execute

SQL Profiles자동구현및실행

잘못된구조오래된통계 빈약한구조의 SQL

Advisor Report

Implement

Automatic

잘못된구조,오래된통계, 빈약한구조의 SQL자동리포팅

Well-tuned SQL

Advisor ReportManual


ADDM for RACDatabase-Level ADDM RAC 전반에걸친진단

Self-Diagnostic Engine매시간자동기동

Cluster Level의분석- Global Cache Interconnect 이슈

L k M 폭주이슈

Instance-Level ADDMs- Lock Manager 폭주이슈- Global Resource 경합(IO bandwidth, hot block 등)- high-Load SQL in Global

저하문제등

Node 1 Node 2 Node 3

- Instance Response time 저하문제등


Easy Partition Management

Access Advisor를통한 Partition AdviseParititioning기법권고

SQL Workload

PackagedApps

Customizable Apps

- Parititioning 기법권고(Range/Range Key, Interval/Interval Key,Hash/Hash Key)

T bl I d MVi 에대한 P titi d i

Index MV

Access Advisor

Partition

- Table, Index, MView에대한 Partition advise-전체 query와 DML workload에서 query 성능이증가하도록고려

Index, MV Analysis

PartitionAnalysis

Automatic Interval Partition 생성-첫번째 Insert 시

Index, MV Advice

Partition Advice

- Date나 Number 타입의일정한 Interval- Range 파티션테이블을 Interval로전환가능-하나의테이블에서 Range와 Interval 공존가능

Well-Designed Schema


Automatic Diagnostic Repository

C

Automatic Diagnostic Repository

Auto Incident Creation

Critical Error

Alert DBA1 2

DBA

Auto Incident CreationFirst-Failure Capture Targeted Health Checks

Duplicate Bug?

Yes

No

Yes

EM Support Workbench:Apply Patch or WorkaroundRepair Advisors

EM Support Workbench:Package Incident &

Configuration Information

34

DBADBARepair Advisors

Reduce Time to Problem Resolution


<Insert Picture Here> Data ManagementData Management

* P titi i* Partitioning

* Flashback Archive DataFlashback Archive Data

* Advanced Compress *p


Partitioning Technologies

Core functionalityO l 8 R i i l b l i dOracle8 Range partitions, global range index

Oracle8i Hash and composite range-hash partitioning

O l 9 Li t titi iOracle9i List partitioning

Oracle9i R2 Composite range-list partitioningO l 10 Gl b l h h i dOracle 10g Global hash indexes

Oracle 10g R2 1M partitions per tablePartitioning by referencePartitioning by referenceVirtual column partitioningAutomatic interval partitioningN i i i iNew composite partitioning:

range-range, list-range, list-list, list-hashPartition Advisor


Necessities for Historical Data ManagementData 이력관리의필요성증대-감사및규제준수의필수요구사항사및규제 수의필수 구사항

SOX, HIPAA, Internal Audit, etc

-업무효율성증대및다변화특정시점의데이터분석

과거와현재시점의정보를동시에분석

기존이력관시솔루션들의한계

- Oracle 10g Flashback Query

변경 감사Undo에저장된내용만활용가능

- 3rd Party Solution전용의저장공간및관리

변경이력정보테이블

Vendor전용의저장공간및관리

관리효율성저하, 보안문제발생

Trigger등의사용에따른성능저하


Trigger 등의사용에따른성능저하

Error Correction with Flashback

DatabaseCorrect Errors at any LevelFlashback Database

Customer-특정시간대로데이터베이스를돌림

Flashback DropRec cle bin을이용 drop된테이블복구- Recycle bin을이용, drop된테이블복구

Flashback Table- Undo이용, 특정시간대로테이블을되돌림

Order

Flashback Query- Undo 이용, 과거특정시점의정보조회

Flashback Transaction트린잭션과모든수반된대치되는트랜잭션철회-트린잭션과모든수반된대치되는트랜잭션철회

Flashback Data Archive-트랜잭션의변경사항을별도로보관하여영구적으로이용


영구적으로이용

Flashback Data Archive Total Recall Optionp

Select * from ordersAS OF

‘Midnight 31 Dec 2004’

설정된테이블의모든변경사항을

자동으로저장

ORDERS

‘Midnight 31-Dec-2004’ 자동 저장- Archive Data는수정불가-유지정책에따른과거 Data purge

ORDERSArchiveTables

Flashback Query를이용, 원하는시점의모든정보조회가능

User Tablespaces

Flashback Data Archive

Oracle Database사용례Ch ki /l hiOracle Database

CREATE FLASHBACK ARCHIVE fda1 TABLESPACE tbs1 RETENTION 5 YEAR;

- Change tracking/long term history- ILM- Auditing

RETENTION 5 YEAR;

ALTER TABLE EMPLOYEES FLASHBACK ARCHIVE fda1;

- Compliance


Compression for MainstreamAdvanced CompressAdvanced Compress

이전버전의 Compress-단지 bulk(direct-path) load 동안 table 압축 : D/W, ILM

모든Application에가능한 Table Compression모든Application에가능한 Table Compression-자유로운 update 동안에도가능한 Compress-종래의 Insert/update/delete를포함한모든 DML

종전보다 2배~3배높은압축율

Decompression overhead를피한압축데이터직접읽기가능


<Insert Picture Here> New TechnologiesNew Technologies for Performance

* Secure File

* Server/Client Result Cache

* Optimized Fusion Cache Protocol

*


Oracle SecureFiles데이터의통합된보안관리데이터의통합된보안관리

Database Files + 일반 file많은 은 뿐만아니라일반파일 등 들을갖는다-많은Application은 DB data뿐만아니라일반파일(CAD, images 등)들을갖는다

- DW application만큼좋은 OLTP

보다빠르고보다많이저장할수있는 LOBs다빠 다많이저장할수있- Transaprent encryption, compression 등지원-데이터베이스의보안성, 신뢰성, 확장성지원- LOB의보다쉬운MigrationLOB의보다쉬운Migration

Benefits-단일의보안모델-데이터의단일관리-높은성능- Compression : 보다효율적인공간사용으로비용감소-복제방지


Server Result Cache

SGA에 Query 혹은부분 Query 결과 Caching

특징- Memory양이많을때더빠른 Query 성능-캐쉬된결과는 execution plan을공유하는다른 Query에서도공유가능-바인드변수, PL/SQL, RAC, PQ, Partitioning 등의기술과함께쓰임- End user에게완벽하게 Transparent한솔루션p

-다중 Control-문장 Level : hint 이용문장 이용

-테이블 Level : caching DDL 사용- Session Level : Parameter 사용 ( force/auto/manual)

- Cache size는 DBA에의해 setting가능- AS가 OCI client로 DB를사용할경우 Client Server간 Cache Fusion 같은기능


OCI Consistent Client Cache서버와클라이언트사이의 Cache Fusion과같은효과

Application Server Consistent CachingCaching

Database

Query 결과를 Client에 Cache읽기위주테이블에대한성능향상읽기위주테이블에대한성능향상

- Network Round Trip 제거에따른응답속도의향상- Server의 CPU 사용율절약

Server Client간의데이터일관성유지- Result Set이변경되면 Cache는능동적으로갱신


Optimized Cache Fusion Protocol

Database

차세대 Cache Fusion 프로토콜- Reader Optimized Fusion Protocol- Long Query Optimized Fusion Protocol

Update Optimized Fusion Protocol- Update Optimized Fusion Protocol

일반적인동작을핸들링하는데최적의프로토콜

Cluster환경에서의 50%-90%의 Cluster Messing 처리감소


Summary

Oracle Database 11g는

여러분을손쉬운변경관리를지원합니다 : Real Application Testing

*여러분을

Oracle Database 11g의세계로안전하고도실용적인 DR Solution을제공합니다 : Active Data Guard

보다자동화되고,발전된성능관리로관리비용을절감해드립니다.g초대합니다.

보다자동화되고, 발전된성능관리로관리비용을절감해드립니다.

안전하고도환경변화에손쉽게대응할수있는 Data 관리를지원합니다

*지원합니다.

Partitioning, Total Recall, Advanced Compress

*최적의관리, Performance를유지할수있는여러기술들을제공합니다.


Q U E S T I O N SQ U E S T I O N SA N S W E R SA N S W E R S


Documents

따라올수없는성능 Oracle 11g의새기능 - dbguide.net · 따라올수없는성능– Oracle 11g ... Apps Customizable Apps ... -유지정책에따른과거Data purge Archive