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Oracle 12c: Multitenant Architecture

Ricardo Portilho [email protected]

Esta obra está licenciada sob a licençaCreative Commons Atribuição-SemDerivados 3.0 Brasil.Para ver uma cópia desta licença, visite http://creativecommons.org/licenses/by-nd/3.0/br/.

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Agenda● Explicando a Arquitetura Multitenant: ROOT, Pluggable, CDB, PDBs, Container.● Vantagens da Arquitetura Multitenant.● Desvantagens da Arquitetura Multitenant.● Diferenças no Dicionário de Dados.● Criação do CDB.● Criação de PDBs / Clone de PDBs.● Migração de PDBs: Plug e Unplug.● Convertendo um banco non-CDB para CDB.● Conectando-se ao CDB.● Iniciando e encerrando o CDB.● Iniciando e encerrando os PDBs.● Alterando parâmetros na Arquitetura Multitenant.● Criando TABLESPACEs no CDB e nos PDBs.● Gerenciando SCHEMAs no CDB e nos PDBs.● Gerenciando Privilégios no CDB e nos PDBs.● Diferenças em BACKUP do CDB e dos PDBs.● Diferenças em EXPDP e IMPDP do CDB e dos PDBs.● Diferenças em RESTORE / RECOVER do CDB e dos PDBs.

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Deprecation of Non-CDB Architecture

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Option Multitenant

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Multitenant - EE

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Singletenant - SE2

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Funcionalidades não suportadas (12cR1)● DBVERIFY● Data Recovery Advisor● Flashback Pluggable Database● Flashback Transaction Backout● Database Change Notification● Continuous Query Notification (CQN)● Client Side Cache● Heat map● Automatic Data Optimization● Oracle Streams

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Problemas da Arquitetura Multitenant● SGA / PGA● UNDO● REDO LOGs● ARCHIVED REDO LOGs● Restore / Recover● Data Guard● Flashback Database● Parâmetros● OS Authentication● Built-In Scripts● Application Express (APEX)● Transparent Data Encryption (TDE)● Views (DBA_ / ALL_ / V$ / GV$ )● Alert Log

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Complicações na Arquitetura Multitenant

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CDB, Root, PDBs, Containers

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DBCA – Criação do CDB

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Outras opções do DBCA – PDBADMIN

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Outras opções do DBCA – Múltiplos PDBs similares

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Outras opções do DBCA – Múltiplos PDBs similares

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Outras opções do DBCA – Custom Database

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Outras opções do DBCA – Custom Database

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Dicionário de Dados

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Verificação de informações

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Criando (Clonando) um PDB

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Criando (Clonando) um PDBCrie os PDBs DEV1, DEV2, e um com seu nome.

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STARTUP / SHUTDOWN

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STARTUP / SHUTDOWN

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STARTUP / SHUTDOWN

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Conectando a CDB / PDB

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Alteração de Parâmetros

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Alteração de Parâmetros

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Alteração de Banco de Dados

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TABLESPACEs

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Usuários e Privilégios

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SELECT FROM CONTAINERS

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catcon.pl

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Unplug / Plug PDB

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Unplug / Plug - Local

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Unplug / Plug – Remoto – Manual – Mesmo diretórioCrie um PDB com o nome de sua máquina, e execute PLUG no vizinho no sentido horário.Em seguida, execute DROP e PLUG novamente deste PDB em sua máquina.

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Unplug / Plug – Remoto – Manual – Mesmo diretório

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Unplug / Plug – Remoto – Manual – Outro diretórioExecute PLUG no 2o vizinho no sentido horário do PDB com o nome de sua máquina.Em seguida, execute DROP e PLUG novamente deste PDB em sua máquina.

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Criando (Clonando) um PDB remoto

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Clone – Remoto – DBLinkCrie um usuário no PDB com o nome da máquina do 3o vizinho do sentido horário.Em seu CDB, crie um DBLink para o PDB com o nome da máquina do 3o vizinho do sentido horário.Em seguida, em sua máquina, clone este PDB através do DBLink.

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Clone – Remoto – DBLink

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Clone – Remoto – DBLink – Non-CDB para PDBCrie um usuário no banco ORCL da máquina do 4o vizinho do sentido horário.Em seu CDB, crie um DBLink para o banco ORCL do 4o vizinho do sentido horário.Em seguida, em sua máquina, clone este banco através do DBLink.

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Clone – Remoto – DBLink – Non-CDB para PDB

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PDBs: DROP

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BackupCDB e PDBsRMAN> BACKUP DATABASE;RMAN> BACKUP DATAFILE 1;RMAN> BACKUP DATAFILE 1,3;

CDBRMAN> BACKUP DATABASE ROOT;RMAN> BACKUP TABLESPACE SYSTEM;RMAN> BACKUP TABLESPACE SYSTEM,SYSAUX;

PDBsRMAN> BACKUP PLUGGABLE DATABASE DEV1;RMAN> BACKUP PLUGGABLE DATABASE DEV1,DEV2;RMAN> BACKUP TABLESPACE DEV1:SYSTEM;

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Restore / RecoverCDB e PDBsRMAN> RESTORE DATABASE;RMAN> RECOVER DATABASE;RMAN> RESTORE DATAFILE 1;RMAN> RECOVER DATAFILE 1;

CDBRMAN> RESTORE DATABASE ROOT;RMAN> RECOVER DATABASE ROOT;RMAN> RESTORE TABLESPACE SYSTEM;RMAN> RECOVER TABLESPACE SYSTEM;

PDBsRMAN> RESTORE PLUGGABLE DATABASE DEV1;RMAN> RECOVER PLUGGABLE DATABASE DEV1;RMAN> RESTORE TABLESPACE DEV1:USERS;RMAN> RECOVER TABLESPACE DEV1:USERS;

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Restore / Recover

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LinksIntroduction to the Multitenant Architecturehttp://docs.oracle.com/database/121/CNCPT/cdbovrvw.htm#CNCPT89234

Overview of the Multitenant Architecturehttp://docs.oracle.com/database/121/CNCPT/cdblogic.htm#CNCPT89248

Deprecation of Non-CDB Architecturehttps://docs.oracle.com/database/121/UPGRD/deprecated.htm#BABDBCJI

Features Restricted or Not Available for a Multitenant Container Database in Oracle Database 12chttps://docs.oracle.com/database/121/READM/chapter12102.htm#READM120

Oracle Technology Global Price Listhttp://www.oracle.com/us/corporate/pricing/technology-price-list-070617.pdf

ORACLE-BASE Multitenant Articleshttps://oracle-base.com/articles/12c/multitenant-overview-container-database-cdb-12cr1

About Using Manageability Features in a CDBhttps://docs.oracle.com/database/121/ADMIN/cdb_admin.htm#ADMIN13885

http://docs.oracle.com/database/121/CNCPT/cdbovrvw.htm#CNCPT89234

http://docs.oracle.com/database/121/CNCPT/cdblogic.htm#CNCPT89248

https://docs.oracle.com/database/121/UPGRD/deprecated.htm#BABDBCJI

https://docs.oracle.com/database/121/READM/chapter12102.htm#READM120

http://www.oracle.com/us/corporate/pricing/technology-price-list-070617.pdf

https://oracle-base.com/articles/12c/multitenant-overview-container-database-cdb-12cr1

https://docs.oracle.com/database/121/ADMIN/cdb_admin.htm#ADMIN13885

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12cR2 PDB New Features● Subset Standby● Data Guard Broker PDB Migration or Failover● Cross-Platform Import of a Pluggable Database into a Multitenant Container Database● I/O Rate Limits for PDBs● Heat Map and Automatic Data Optimization Support for CDBs● PDB Character Set● PDB Refresh● Hints in CONTAINERS Query● Parallel PDB Creation Clause● PDB Archive Files (.pdb Files)● Default Tablespace Clause● Cloning a PDB● Near Zero Downtime PDB Relocation● Logical Standby Database to Support CDBs with PDBs with Different Character Sets● LogMiner to Support CDBs with PDBs with Different Character Sets● Support for PDBs with Different Character Sets, Time Zone File Versions, and Database Time Zones in a CDB● Memory Resource Management● Per-Process PGA Limits● Performance Profiles and Mandatory PDB Profiles● CDB-Level PDB Lockdown● Application Root● Proxy PDB● Forwarding Connections to A New Address Based on Service● Service-Level ACLs for TCP Protocol

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12cR2 PDB New Features● Flashback Pluggable Database● Upgrading a CDB With One or More PDBs in a Single Operation● Support for Thousands of Pluggable Databases for Each Multitenant Container Database● Pluggable Database Lockdown Profiles Enhancements● Pluggable Database Operating System Credentials● Oracle Enterprise Manager Database Express (EM Express) Resource Manager Support● EM Express: Simplifying Configuration for Multitenant Through Single Port Access● EM Express: Performance Hub Enhancements● Automatic Workload Repository (AWR) Support for a Pluggable Database (PDB)● Selective PDB Upgrades● AWR_PDB_AUTOFLUSH_ENABLED Initialization Parameter● ENABLE_AUTOMATIC_MAINTENANCE_PDB Initialization Parameter● AUTOTASK_MAX_ACTIVE_PDBS Initialization Parameter● Global and Shared Connection Pool for Oracle Cloud and Multitenant Oracle Databases● Prioritized Rebalancing● Oracle Database Vault Common Realms and Command Rules for Oracle Multitenant

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Perguntas?

Ricardo Portilho [email protected] Informática

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