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Oracle sharding : Installation & Configuration

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New Oracle 12c R2 Feature

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Oracle sharding : Installation & Configuration

  1. 1. Oracle 12c Sharding Part 2 – Installation & Configuration
  2. 2. Shared catalog db1 db2 SDB Connection Pool Search Distributed Metadata The requested data is distributed to shard1 – db1 Select custid,customernum ner,product,qty from customer_orders where cust_id=11030; Takes the hash key of this customer id Global Service Shard Director Customer_orders Partition1 Customer_orders Partition2 Oracle Sharding Architecture (12c R2) 1521 shard2 1521 shard1 1521 Primary Primary db1 db2 Customer_orders Partition1 Customer_orders Partition2 shard2 shard1 Standby Standby High Availability Dataguard Broder Dataguard Broder
  3. 3. Configuring Oracle Sharding – Environment Planning Node Type IP Address Home Ports DB Name Scheduler Agent Shard Catalog Node 192.168.56.150 Host: shardcat Oracle Home: /u01/app/oracle/12.2.0.1/db_1 GSM home: /u01/app/oracle/12.2.0.1/GSM GSM Listener 1539 DB Listener 1521 SCAT Shard1 192.168.56.151 Host: shard1 Oracle Home: /u01/app/oracle/12.2.0.1/db_1 DB Listener 1521 sh1 Scheduler Agent - Shard2 192.168.56.152 Host: shard2 Oracle Home: /u01/app/oracle/12.2.0.1/db_1 DB Listener 1521 sh2 Scheduler Agent -
  4. 4. Steps to Configure Oracle Sharding Step Nodes/Hosts Step Details 1 shardcat/Shard1/Shard2 Install Oracle Software Only 12cR2 – Preferably Same Location 2 shardcat Create Database SCAT using DBCA (NON CDB) 3 shardcat Install GSM Software as Separate Home 4 shardcat Create Environment Setup 5 Shardcat Prepare SCAT database for Sharding - Prerequisities 6 shardcat Configure Shard Catalog using GSDCTL – Create Shard Catalog in SCAT 7 shard1/shard2 Start the SCH Agent & Register Shard nodes to SCAT database 8 shardcat Create Shard Group/Director/Add Shards 9 shardcat Deploy Shards using GSDCTL – This will eventually create databases in shard1/shard2 10 shardcat Verify Shard Configuration 11 shardcat Create Global Service using GSDCTL 12 shardcat Create sample schema and Tablespace set and see that propagate to shard1/shard2 13 shardcat Connect to sample schema and create shard table 14 Shardcat/shard1/shard2 Verify the sample table is created across shards
  5. 5. Step 1 : Install Oracle 12c R2 Software • Install Oracle 12cR2 Software on all three nodes shardcat/shard1/shard2 • Complete Pre-requisities • Install with Software only option • Sample options to change in <softwarelocation>/response/db_install.rsp oracle.install.option=INSTALL_DB_SWONLY ORACLE_HOSTNAME=Geek DBA11g UNIX_GROUP_NAME=oinstall INVENTORY_LOCATION=/u02/app/oraInventory ORACLE_HOME=/u01/app/oracle/product/12.1.0/db_1 ORACLE_BASE=/u01/app/oracle oracle.install.db.InstallEdition=EE oracle.install.db.DBA_GROUP=dba oracle.install.db.OPER_GROUP=oper oracle.install.db.BACKUPDBA_GROUP=dba oracle.install.db.DGDBA_GROUP=asmadmin oracle.install.db.KMDBA_GROUP=dba SECURITY_UPDATES_VIA_MYORACLESUPPORT=false DECLINE_SECURITY_UPDATES=true • Create Oracle Home Directories mkdir -p /u01/app/oracle/product/12.1.0/db_1 mkdir -p /u02/app/oraInventory chown -R oracle:oinstall /u02/app/oraInventory • Sample Run Installer Command ./runInstaller -silent -ignoresysprereqs -responsefile /home/oracle/database/response/db_install.rsp
  6. 6. Step 2: Create ShardCatalog Database On shardcat Node:- • Create Directories mkdir –p /u01/app/oracle/flash_recover_area/SCAT mkdir –p /u01/app/oracle/fast_recovery_area/SCAT mkdir –p /u01/oradata/SCAT mkdir –p /u01/app/oracle/admin/SCAT/adump • Run DBCA ./dbca -silent -createDatabase -templateName General_Purpose.dbc -gdbName SCAT -sid SCAT -SysPassword **** -createAsContainerDatabase false -SystemPassword *** -emConfiguration NONE -redoLogFileSize 100 -recoveryAreaDestination /u01/app/oracle/SCAT -DatafileDestination /u01/app/oracle/SCAT -storageType FS -listeners LISTENER12 -registerWithDirService false -characterSet AL32UTF8 -nationalCharacterSet AL16UTF16 -databaseType MULTIPURPOSE -memoryPercentage 40 -memoryType AUTO
  7. 7. Step 3: Install GSM Software in Shardcat On Shardcat Node:- • Download from Oracle Downloads page or Edelivery.oracle.com • Unzip the GSM Software • Install as separate Home
  8. 8. Step 4: Create Environment Setup in Shardcat
  9. 9. Step 5 : Prepare SCAT database for Sharding - Prerequisities On Shardcat : SCAT Database alter system set db_create_file_dest='/u01/ora12c/app/oracle/oradata' scope=both; alter system set open_links=16 scope=spfile; alter system set open_links_per_instance=16 scope=spfile; startup force alter user gsmcatuser account unlock; alter user gsmcatuser identified by oracle; CREATE USER mygdsadmin IDENTIFIED BY oracle; GRANT connect, create session, gsmadmin_role to mygdsadmin; grant inherit privileges on user SYS to GSMADMIN_INTERNAL; execute dbms_xdb.sethttpport(8080); commit; @?/rdbms/admin/prvtrsch.plb exec DBMS_SCHEDULER.SET_AGENT_REGISTRATION_PASS('oracleagent');
  10. 10. Step 6:– Create Shard Catalog in SCAT On Shardcat node, in SCAT Database & Set environment to GSM Home # gdsctl GDSCTL> create shardcatalog -database shardcat:1521:SCAT -chunks 12 -user mygdsadmin/oracle -sdb SCAT -region region1 GDSCTL>add gsm -gsm sharddirector1 -listener 1571 -pwd oracle -catalog shardcat:1521:SCAT -region region1 GDSCTL>start gsm -gsm sharddirector1 GDSCTL>add credential -credential oracle_cred -osaccount oracle -ospassword **** GDSCTL> exit
  11. 11. Step 7: Start the Scheduler Agent on Shard Nodes On Shard1 & 2 : Scheduler Agent is already installed if you install oracle database software just start it #Set Oracle Home #schagent start #schagent status # echo oracleagent | schagent –resiterdatabase shardcat 8080  provide name of host not database
  12. 12. Step 8 : Create Shard Group/Director/Add Shards GDSCTL>set gsm -gsm sharddirector1 GDSCTL>connect mygdsadmin/oracle Catalog connection is established GDSCTL>-- add shard group GDSCTL>add shardgroup -shardgroup primary_shardgroup -deploy_as primary -region region1 The operation completed successfully GDSCTL>-- add shard1 GDSCTL>add invitednode shard1 GDSCTL>create shard -shardgroup primary_shardgroup -destination shard1 -credential oracle_cred DB Unique Name: sh1 GDSCTL> --add shard2 GDSCTL>add invitednode shard2 GDSCTL>create shard -shardgroup primary_shardgroup -destination shard2 -credential oracle_cred DB Unique Name: sh2
  13. 13. Step 8 : Deploy Shards • In shardcat node, using gsdctl, run gsdctl> deploy Note: This will create the databases in shard1 and shard2 using dbca and create listeners automatically
  14. 14. Step 10: Verify Shard Status
  15. 15. Step 11 : Create Global Service using GSDCTL Using GDSCTL on shardcat gdsctl> add service –service test_srv –role primar gdsctl> config service gdsctl> start service gdsctl> status service
  16. 16. Step 12: Create sample schema and Tablespace set and see that propagate to shard1/shard2 #[oracle12c@sdb1 ~]$ db_env Sqlplus / as sysdba alter session enable shard ddl; create user app_schema identified by oracle; grant all privileges to app_schema; grant gsmadmin_role to app_schema; grant select_catalog_role to app_schema; grant connect, resource to app_schema; grant dba to app_schema; grant execute on dbms_crypto to app_schema; #Create Sharded Tablespace & Test out conn app_schema/oracle alter session enable shard ddl; CREATE TABLESPACE SET TSP_SET_1 using template (datafile size 100m extent management local segment space management auto ); CREATE TABLESPACE products_tsp datafile size 100m extent management local uniform size 1m; Note: For any command that need to be shard, you must enable shard ddl at session level before running the sql command
  17. 17. Step 13: Create Shard Tables
  18. 18. Step 14: Verify Distribution of Tables to shards • On Shard Catalog SDB Database
  19. 19. Step 14: Verify Distribution of Tables to Shards On Shard1, SH1 database the customer table is partitioned and some of the partitions created here On Shard2, SH2 database the customer table is partitioned and some of the partitions created here
  20. 20. Thanks • In Next Post/Presentation we will be seeing • Managing Shards • Adding / Deleting Shards • Verify Data Distribution • Shard Restrictions

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