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Oracle Active Data Guard and Global Data Services in Action!

Ludovico Caldara
Ludovico Caldara

The document discusses Oracle's Global Data Services (GDS) and Active Data Guard, highlighting their implementation and capabilities in IT consulting and database management. Trivadis, a market leader in IT consulting, provides extensive information on services, infrastructure, and operational strategies for effectively managing replicated environments. Key elements include service configurations, connection management, regional affinities, and performance metrics within a global service framework.

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BASEL BERN BRUGG DÜSSELDORF FRANKFURT A.M. FREIBURG I.BR. GENEVA HAMBURG COPENHAGEN LAUSANNE MUNICH STUTTGART VIENNA ZURICH Oracle Active Data Guard and Global Data Services in Action! Robert Bialek Principal Consultant Partner Trivadis SA Ludovico Caldara Oracle ACE Senior Consultant Trivadis SA
About Ludovico Caldara Global Data Services in Action!2 08/12/2015 ■ 16 Years DBA (Not Only Oracle) ▪ I do it everywhere (even Windows) ■ RAC ATTACK Ninja & co-writer ■ VP, SOUG & ITOUG Board member ■ OCP (11g, 12c, MySQL) & OCE ■ Italian living in Switzerland ■ http://www.ludovicocaldara.net ■ @ludodba ■ ludovicocaldara Opinions are my own
Our company. Global Data Services in Action!3 08/12/2015 Trivadis is a market leader in IT consulting, system integration, solution engineering and the provision of IT services focusing on and technologies in Switzerland, Germany, Austria and Denmark. We offer our services in the following strategic business fields: Trivadis Services takes over the interactive operation of your IT systems. O P E R A T I O N
COPENHAGEN MUNICH LAUSANNE BERN ZURICH BRUGG GENEVA HAMBURG DÜSSELDORF FRANKFURT STUTTGART FREIBURG BASEL VIENNA With over 600 specialists and IT experts in your region. Global Data Services in Action!4 08/12/2015 14 Trivadis branches and more than 600 employees 200 Service Level Agreements Over 4,000 training participants Research and development budget: CHF 5.0 / EUR 4 million Financially self-supporting and sustainably profitable Experience from more than 1,900 projects per year at over 800 customers
Global Data Services in Action!5 08/12/2015 Local Data Services (or how it used to be)
Local Data Services (Clusterware) Global Data Services in Action!6 08/12/2015 RAC DB INST1 INST2 Single Client Access Name SERVICE_A $ srvctl add service -database db_unique_name -service service_a -role "[PRIMARY][,PHYSICAL_STANDBY]" -cblgoal { SHORT | LONG } -failovertype {NONE|SESSION|SELECT|TRANSACTION} -failovermethod {NONE | BASIC} -preferred preferred_list -available available_list
Local Data Services (Active Data Guard, no Clustware) Global Data Services in Action!7 08/12/2015 PRIMARY STANDBY SERVICE_A_RO CREATE OR REPLACE TRIGGER service_a_ro after startup on database DECLARE role VARCHAR(30); BEGIN SELECT DATABASE_ROLE INTO role FROM V$DATABASE; IF role = 'PRIMARY' THEN DBMS_SERVICE.START_SERVICE(service_a'); ELSE DBMS_SERVICE.START_SERVICE(service_a_ro'); END IF; END; /DB_SITE1 DB_SITE2 SERVICE_A_RW
Local Data Services (MAA, Active Data Guard, etc.) Global Data Services in Action!8 08/12/2015 Create services for Primary role on ALL the databases Create services for Standby role on ALL the databases Define connection descriptors with static address list
Local Data Services (MAA) Global Data Services in Action!9 08/12/2015 SERVICE_A= (DESCRIPTION_LIST= (LOAD_BALANCE=off) (FAILOVER=on) (DESCRIPTION = (CONNECT_TIMEOUT=5) (TRANSPORT_CONNECT_TIMEOUT=3) (RETRY_COUNT=3) (ADDRESS_LIST= (LOAD_BALANCE=on) (ADDRESS = (PROTOCOL = TCP)(HOST = raca-scan)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = SERVICE_A)) ) (DESCRIPTION = (CONNECT_TIMEOUT=5) (TRANSPORT_CONNECT_TIMEOUT=3) (RETRY_COUNT=3) (ADDRESS_LIST= (LOAD_BALANCE=on) (ADDRESS = (PROTOCOL = TCP)(HOST = racb-scan)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = SERVICE_A)) ) )
Local Data Services: not for complex environments Global Data Services in Action!10 08/12/2015 PRIMARY STANDBY STANDBY STANDBY SYNC ASYNC ASYNC
Local Data Services: not for complex environments Global Data Services in Action!11 08/12/2015 PRIMARY STANDBY STANDBY STANDBY SYNC ASYNC ASYNC SWISS CLIENTS READ HERE GERMAN CLIENTS READ HERE
Local Data Services: not for complex environments Global Data Services in Action!12 08/12/2015 PRIMARY STANDBY STANDBY STANDBY SYNC ASYNC ASYNC IN CASE OF LAG BOTH READ HERE
Local Data Services: not for complex environments Global Data Services in Action!13 08/12/2015 PRIMARY STANDBY STANDBY STANDBY SYNC ASYNC ASYNC IN CASE OF PROBLEMS ALL READ FROM PRIMARY
Global Data Services are the new big improvement Global Data Services in Action!14 08/12/2015 PRIMARY STANDBY STANDBY STANDBY SYNC ASYNC ASYNC GLOBAL DATA SERVICES INFRASTRUCTURE
Global Data Services in Action!15 08/12/2015 Global Data Services Overview
Global Data Services - Overview Global Data Services in Action!16 08/12/2015 Introduced in 12.1.0.1 Goal: centralize database service management – In replicated environments – For applications which are replication-aware Extra-cost option: requires Oracle Active Data Guard or Oracle Golden Gate SALES SALES SALES GLOBAL DATA SERVICES INFRASTRUCTURE SERVICE
Global Data Services – Big Picture Global Data Services in Action!17 08/12/2015 SALES SALESSALES SALES SALESSALES Golden Gate, Active Data Guard, Streams, […]
Global Data Services – Big Picture Global Data Services in Action!18 08/12/2015 Global Service Manager 1 Global Service Manager 2 Global Service Manager 3 Global Service Manager 4 SALES SALESSALES SALES SALESSALES Golden Gate, Active Data Guard, Streams, […] GDS POOL: SALES (sales_rw, sales_ro, sales_rep, …) GDS CATALOG GDS CATALOG
Global Data Services – Big Picture Global Data Services in Action!19 08/12/2015 Global Service Manager 1 Global Service Manager 2 Global Service Manager 3 Global Service Manager 4 SALES SALESSALES SALES SALESSALES Golden Gate, Active Data Guard, Streams, […] GDS POOL: SALES (sales_rw, sales_ro, sales_rep, …) GDS CATALOG GDS CATALOG Global Services GDS Pool Databases GDS Pool Databases
Global Data Services – How it works? Global Data Services in Action!20 08/12/2015 SALES SALES SALESSALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS 1 Request a connection for a global service to a GSM Service naming: <gs_name>.<gds_pool>.<gds_configuration> 1
Global Data Services – How it works? Global Data Services in Action!21 08/12/2015 SALES SALES SALESSALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS 1 2 Request a connection for a global service to a GSM Service naming: <gs_name>.<gds_pool>.<gds_configuration> GSM returns the local listener address (SCAN is bypassed) 1 2
Global Data Services – How it works? Global Data Services in Action!22 08/12/2015 SALES SALES SALESSALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS 1 2 3 Request a connection for a global service to a GSM Service naming: <gs_name>.<gds_pool>.<gds_configuration> GSM returns the local listener address (SCAN is bypassed) Connect to the Global Service active locally on the target 1 2 3
Global Data Services in Action!23 08/12/2015 Global Data Services Setup
Global Data Services - Setup Global Data Services in Action!24 08/12/2015
GDS – Catalog/Regions/Pools Global Data Services in Action!25 08/12/2015 Create the GDS catalog administrator account in a 12c database – For CDBs it must be a common user (or ORA-45562 raised) Internally, the GDS catalog data is stored in the schema GSMADMIN_INTERNAL (tables, PL/SQL code, jobs, types,…) SQL> CREATE USER c##gsm_admin IDENTFIED BY <password>; SQL> GRANT gsmadmin_role TO c##gsm_admin; GDSCTL> CREATE CATALOG -database gsm01.trivadis.com:1521/repo_site1.trivadis.com -user c##gsm_admin/<password> -region germany,switzerland #default region: regionora -gdspool sales,order_entry #default pool: dbpoolORA -configname tvddbcloud #default name: oradbcloud -autovncr on GDS POOL GDS Region12c
Global Service Manager Global Data Services in Action!26 08/12/2015 To connect to the catalog database, GSM uses the GSMCATUSER database account Each GSM needs to be registered in the GDS configuration GSM needs to be started and integrated in the cluster/OS startup procedures SQL> ALTER USER GSMCATUSER ACCOUNT UNLOCK; SQL> ALTER USER GSMCATUSER IDENTFIED BY <password>; GDSCTL> ADD GSM -gsm gsm1 -listener 1530 -catalog gds01.trivadis.com:1521/repo_site1.trivadis.com -region germany -wpwd <password> "gsmcatuser" password: Create credential oracle.security.client.connect_string1 GSM successfully added GDSCTL> START GSM –gsm gsm1 Wallet stored in $TNS_ADMIN/gsmwallet GSM
GDS Pool Databases Global Data Services in Action!27 08/12/2015 For each target GDS pool database, unlock the GSMUSER user A pool database must be added to the correct GDS region One GDS pool can host many pool databases A database can belong only to one GDS pool GDSCTL> ADD DATABASE -connect GDSDB2_SITE1.TRIVADIS.COM -region germany -gdspool order_entry "gsmuser" password: DB Unique Name: GDSDB2_SITE1 SQL> ALTER USER GSMUSER ACCOUNT UNLOCK; SQL> ALTER USER GSMUSER IDENTFIED BY <password>;
GDS Pool DBs (Data Guard broker) Global Data Services in Action!28 08/12/2015 PRIMARY STANDBY STANDBY Data Guard config can be added only to an empty GDS pool (or ORA-44881) For each standby database, the region need to be manually specified GDSCTL> ADD BROKERCONFIG -connect db01.trivadis.com:1521/DB1_SITE1.TRIVADIS.COM -pwd <password> -gdspool sales -region germany Catalog connection is established DB Unique Name: GDSDB1_SITE1 GDSCTL> CONFIG DATABASE Name Pool Status Region ---- ---- ------ ------ gdsdb1_site2 sales Ok gdsdb1_site3 sales Ok gdsdb1_site1 sales Ok germany GDSCTL> MODIFY DATABASE -database gdsdb1_site2 -region germany Empty GDS Region
Global Data Services in Action!29 08/12/2015 I don’t mind the setup, Show me the services!
Global Database Services - Features Global Data Services in Action!30 08/12/2015 Global Data Services support – Local Service Attributes (TAF, rlbgoal, clbgoal, commit outcome…) – Preferred and available databases – Replication lag threshold (ADG only) – Region affinity
GDS - Restrictions Global Data Services in Action!31 08/12/2015 Creation of a global service for a target pool database registered in Oracle Restart fails (during registration of a CRS global service resource) For Grid Infrastructure with role separation – Local Listener must run from oracle user, RDBMS_HOME For RAC,the service registration works correctly only with policy-managed database – With administrator-managed RAC databases, the registration does not work (ORA-45540/PRCR-1001) – BUG assigned to development CRS-2509: Resource type 'ora.cluster_vip_net1.type' used in dependency 'hard' does not exist or is not registered srvctl modify listener -user oracle -oraclehome $RDBMS_HOME
Global Connection: Client-side Global Data Services in Action!32 08/12/2015 GSALES_RO.TRIVADIS.COM = (DESCRIPTION= (CONNECT_TIMEOUT=5)(RETRY_COUNT=3)(TRANSPORT_CONNECT_TIMEOUT=3)(FAILOVER=ON) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm01.trivadis.com)(PORT=1530)) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm02.trivadis.com)(PORT=1530))) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm03.trivadis.com)(PORT=1530))) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm04.trivadis.com)(PORT=1530))) (CONNECT_DATA= (SERVICE_NAME=gsales_ro.sales.tvddbcloud) (REGION=germany)))
Global Connection: Client-side Global Data Services in Action!33 08/12/2015 GSALES_RO.TRIVADIS.COM = (DESCRIPTION= (CONNECT_TIMEOUT=5)(RETRY_COUNT=3)(TRANSPORT_CONNECT_TIMEOUT=3)(FAILOVER=ON) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm01.trivadis.com)(PORT=1530)) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm02.trivadis.com)(PORT=1530))) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm03.trivadis.com)(PORT=1530))) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm04.trivadis.com)(PORT=1530))) (CONNECT_DATA= (SERVICE_NAME=gsales_ro.sales.tvddbcloud) (REGION=germany))) GSMs Region Switzerland GSMs Region Germany
Global Connection: Client-side Global Data Services in Action!34 08/12/2015 GSALES_RO.TRIVADIS.COM = (DESCRIPTION= (CONNECT_TIMEOUT=5)(RETRY_COUNT=3)(TRANSPORT_CONNECT_TIMEOUT=3)(FAILOVER=ON) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm01.trivadis.com)(PORT=1530)) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm02.trivadis.com)(PORT=1530))) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm03.trivadis.com)(PORT=1530))) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm04.trivadis.com)(PORT=1530))) (CONNECT_DATA= (SERVICE_NAME=gsales_ro.sales.tvddbcloud) (REGION=germany))) Intra-Region Failover Intra-Region Failover
Global Connection: Client-side Global Data Services in Action!35 08/12/2015 GSALES_RO.TRIVADIS.COM = (DESCRIPTION= (CONNECT_TIMEOUT=5)(RETRY_COUNT=3)(TRANSPORT_CONNECT_TIMEOUT=3)(FAILOVER=ON) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm01.trivadis.com)(PORT=1530)) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm02.trivadis.com)(PORT=1530))) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm03.trivadis.com)(PORT=1530))) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm04.trivadis.com)(PORT=1530))) (CONNECT_DATA= (SERVICE_NAME=gsales_ro.sales.tvddbcloud) (REGION=germany))) Inter-Region Failover
Global Connection Load Balancing Global Data Services in Action!36 08/12/2015 Client connection requests are routed to the least-loaded database (like SCAN) – Based on performance, interregion network latency, region affinity and CLB/RLB goal GDSCTL> SERVICES -service gsales_ro –support Service "gsales_ro.sales.tvddbcloud" has 3 instance(s). Affinity: LOCALONLY Instance "sales%31", name: "GDSDB2", db: "GDSDB2_SITE1", region: "germany", status: ready. Request ratio: 35.57%, Sessions: 0, Elapsed time: 115.84 ms. Region "germany": RLB Ratio: 2.99%, Response Time: 115.84 ms, Network Factor: 0 UCPS: 0.70 FLAGS: 0 CPU 100.00 Instance "sales%41", name: "GDSDB2", db: "GDSDB2_SITE2", region: "germany", status: ready. Request ratio: 64.43%, Sessions: 0, Elapsed time: 1.28 ms. Region "germany": RLB Ratio: 97.01%, Response Time: 1.28 ms, Network Factor: 0 UCPS: 1.27 FLAGS: 0 CPU 1.00 GDSCTL> ADD SERVICE -gdspool sales -service gsales_ro –clbgoal [SHORT|LONG] –rlbgoal [SERVICE_TIME | THROUGHPUT]
Global Connection Region Affinity - Anywhere Global Data Services in Action!37 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality ANYWHERE SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS SALES SALES
Global Connection Region Affinity - Anywhere Global Data Services in Action!38 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality ANYWHERE SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS 1 SALES SALES 1 REMOTE LOCAL
Global Connection Region Affinity – Local Only Global Data Services in Action!39 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality LOCAL_ONLY SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS SALES SALES
Global Connection Region Affinity – Local Only Global Data Services in Action!40 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality LOCAL_ONLY SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS 1 SALES SALES LOCAL
Global Connection Region Affinity – Local Only Global Data Services in Action!41 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality LOCAL_ONLY SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS 1 2 SALES SALES LOCAL CRASH
Global Connection Region Affinity – Local Only Global Data Services in Action!42 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality LOCAL_ONLY SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS 1 2 3 SALES SALES LOCAL CRASH TNS-12514
Global Connection Region Affinity – Region Failover Global Data Services in Action!43 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality LOCAL_ONLY –region_failover SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS SALES SALESSALES SALES
Global Connection Region Affinity – Region Failover Global Data Services in Action!44 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality LOCAL_ONLY –region_failover SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS SALES SALESSALES SALES 1 LOCAL
Global Connection Region Affinity – Region Failover Global Data Services in Action!45 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality LOCAL_ONLY –region_failover SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS SALES SALESSALES SALES 1 2 LOCAL CRASH
Global Connection Region Affinity – Region Failover Global Data Services in Action!46 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality LOCAL_ONLY –region_failover SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS SALES SALESSALES SALES 1 2 3 LOCAL CRASH REMOTE
Region Affinity: CDB & PDBs Global Data Services in Action!47 08/12/2015 In version 12.1.0.2, Region Affinity for a PDB is ignored Current workaround: create a global service for the CDB$ROOT container, drop it and create again with the same name for the target PDB GDSCTL> CONFIG SERVICE -gdspool sales -service gsales_ro Name: gsales_ro Network name: gsales_ro.sales.tvddbcloud Locality: LOCAL_ONLY Region Failover: No PDB: app1 GDSCTL> SERVICES -service gsales_ro Service "gsales_ro.sales.tvddbcloud" has 2 instance(s). Affinity: ANYWHERE Instance "sales%11", name: "GDSDB1", db: "GDSDB1_SITE2", region: "germany", status: ready. Instance "sales%21", name: "GDSDB1", db: "GDSDB1_SITE3", region: "switzerland", status: ready.
Global Service Placement/Failover Global Data Services in Action!48 08/12/2015 For each Global Service a placement attribute can be specified GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -preferred_all | -preferred db1,db2,db3 -available db4 ] DB1 DB2 DB3 DB4 1
Global Service Placement/Failover Global Data Services in Action!49 08/12/2015 For each Global Service a placement attribute can be specified GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -preferred_all | -preferred db1,db2,db3 -available db4 ] DB1 DB2 DB3 DB4 1 2
Global Service Placement/Failover Global Data Services in Action!50 08/12/2015 For each Global Service a placement attribute can be specified GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -preferred_all | -preferred db1,db2,db3 -available db4 ] DB1 DB2 DB3 DB4 1 2 3
Global Service Placement/Failover Global Data Services in Action!51 08/12/2015 For each Global Service a placement attribute can be specified GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -preferred_all | -preferred db1,db2,db3 -available db4 ] DB1 DB2 GDSCTL> relocate service … -old_db db4 -new_db db2 DB3 DB4 1 2 3
Role-Based Global Services – Lag Tolerance Global Data Services in Action!52 08/12/2015 Role-based services are supported for pool databases in Data Guard Broker configuration GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -role PRIMARY | -role PHYSICAL_STANDBY -failover_primary –lag 20 DB1 DB2 PRIMARY DB3 1 STANDBY STANDBY
Role-Based Global Services – Lag Tolerance Global Data Services in Action!53 08/12/2015 Role-based services are supported for pool databases in Data Guard Broker configuration GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -role PRIMARY | -role PHYSICAL_STANDBY -failover_primary –lag 20 DB1 DB2 PRIMARY DB3 1 2 STANDBY STANDBY STANDBYPRIMARYSTANDBY
Role-Based Global Services – Lag Tolerance Global Data Services in Action!54 08/12/2015 Role-based services are supported for pool databases in Data Guard Broker configuration GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -role PRIMARY | -role PHYSICAL_STANDBY -failover_primary –lag 20 DB1 DB2 PRIMARY DB3 1 2 STANDBY STANDBY STANDBYPRIMARYSTANDBY 3 STANDBYPRIMARYSTANDBY LAG>20
Role-Based Global Services – Lag Tolerance Global Data Services in Action!55 08/12/2015 Role-based services are supported for pool databases in Data Guard Broker configuration GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -role PRIMARY | -role PHYSICAL_STANDBY -failover_primary –lag 20 DB1 DB2 PRIMARY DB3 1 2 STANDBY STANDBY STANDBYPRIMARYSTANDBY 3 4 STANDBY STANDBY PRIMARYSTANDBY LAG>20
Role-Based Global Services – Lag Tolerance Global Data Services in Action!56 08/12/2015 Role-based services are supported for pool databases in Data Guard Broker configuration GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -role PRIMARY | -role PHYSICAL_STANDBY -failover_primary –lag 20 DB1 DB2 PRIMARY DB3 1 2 STANDBY STANDBY STANDBYPRIMARYSTANDBY 3 4 STANDBY STANDBY PRIMARYSTANDBY LAG>20 PRIMARYSTANDBY STANDBY LAG<=20 5
Global Data Services in Action!57 08/12/2015 DEMO? GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY OLTP OLTPGSMCAT OLTP Global Services: gsales_rw, gsales_ro Pool: Sales
Conclusions Global Data Services in Action!58 08/12/2015 Central Database Service Management Works as expected, minor bugs Perfect for complex environments Extra-cost option (GG or ADG)
What's your question? 08/12/2015 Global Data Services in Action!59 Robert Bialek Principal Consultant Partner Trivadis SA Ludovico Caldara Oracle ACE Senior Consultant Trivadis SA

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Oracle Active Data Guard and Global Data Services in Action!

  • 1. BASEL BERN BRUGG DÜSSELDORF FRANKFURT A.M. FREIBURG I.BR. GENEVA HAMBURG COPENHAGEN LAUSANNE MUNICH STUTTGART VIENNA ZURICH Oracle Active Data Guard and Global Data Services in Action! Robert Bialek Principal Consultant Partner Trivadis SA Ludovico Caldara Oracle ACE Senior Consultant Trivadis SA
  • 2. About Ludovico Caldara Global Data Services in Action!2 08/12/2015 ■ 16 Years DBA (Not Only Oracle) ▪ I do it everywhere (even Windows) ■ RAC ATTACK Ninja & co-writer ■ VP, SOUG & ITOUG Board member ■ OCP (11g, 12c, MySQL) & OCE ■ Italian living in Switzerland ■ http://www.ludovicocaldara.net ■ @ludodba ■ ludovicocaldara Opinions are my own
  • 3. Our company. Global Data Services in Action!3 08/12/2015 Trivadis is a market leader in IT consulting, system integration, solution engineering and the provision of IT services focusing on and technologies in Switzerland, Germany, Austria and Denmark. We offer our services in the following strategic business fields: Trivadis Services takes over the interactive operation of your IT systems. O P E R A T I O N
  • 4. COPENHAGEN MUNICH LAUSANNE BERN ZURICH BRUGG GENEVA HAMBURG DÜSSELDORF FRANKFURT STUTTGART FREIBURG BASEL VIENNA With over 600 specialists and IT experts in your region. Global Data Services in Action!4 08/12/2015 14 Trivadis branches and more than 600 employees 200 Service Level Agreements Over 4,000 training participants Research and development budget: CHF 5.0 / EUR 4 million Financially self-supporting and sustainably profitable Experience from more than 1,900 projects per year at over 800 customers
  • 5. Global Data Services in Action!5 08/12/2015 Local Data Services (or how it used to be)
  • 6. Local Data Services (Clusterware) Global Data Services in Action!6 08/12/2015 RAC DB INST1 INST2 Single Client Access Name SERVICE_A $ srvctl add service -database db_unique_name -service service_a -role "[PRIMARY][,PHYSICAL_STANDBY]" -cblgoal { SHORT | LONG } -failovertype {NONE|SESSION|SELECT|TRANSACTION} -failovermethod {NONE | BASIC} -preferred preferred_list -available available_list
  • 7. Local Data Services (Active Data Guard, no Clustware) Global Data Services in Action!7 08/12/2015 PRIMARY STANDBY SERVICE_A_RO CREATE OR REPLACE TRIGGER service_a_ro after startup on database DECLARE role VARCHAR(30); BEGIN SELECT DATABASE_ROLE INTO role FROM V$DATABASE; IF role = 'PRIMARY' THEN DBMS_SERVICE.START_SERVICE(service_a'); ELSE DBMS_SERVICE.START_SERVICE(service_a_ro'); END IF; END; /DB_SITE1 DB_SITE2 SERVICE_A_RW
  • 8. Local Data Services (MAA, Active Data Guard, etc.) Global Data Services in Action!8 08/12/2015 Create services for Primary role on ALL the databases Create services for Standby role on ALL the databases Define connection descriptors with static address list
  • 9. Local Data Services (MAA) Global Data Services in Action!9 08/12/2015 SERVICE_A= (DESCRIPTION_LIST= (LOAD_BALANCE=off) (FAILOVER=on) (DESCRIPTION = (CONNECT_TIMEOUT=5) (TRANSPORT_CONNECT_TIMEOUT=3) (RETRY_COUNT=3) (ADDRESS_LIST= (LOAD_BALANCE=on) (ADDRESS = (PROTOCOL = TCP)(HOST = raca-scan)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = SERVICE_A)) ) (DESCRIPTION = (CONNECT_TIMEOUT=5) (TRANSPORT_CONNECT_TIMEOUT=3) (RETRY_COUNT=3) (ADDRESS_LIST= (LOAD_BALANCE=on) (ADDRESS = (PROTOCOL = TCP)(HOST = racb-scan)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = SERVICE_A)) ) )
  • 10. Local Data Services: not for complex environments Global Data Services in Action!10 08/12/2015 PRIMARY STANDBY STANDBY STANDBY SYNC ASYNC ASYNC
  • 11. Local Data Services: not for complex environments Global Data Services in Action!11 08/12/2015 PRIMARY STANDBY STANDBY STANDBY SYNC ASYNC ASYNC SWISS CLIENTS READ HERE GERMAN CLIENTS READ HERE
  • 12. Local Data Services: not for complex environments Global Data Services in Action!12 08/12/2015 PRIMARY STANDBY STANDBY STANDBY SYNC ASYNC ASYNC IN CASE OF LAG BOTH READ HERE
  • 13. Local Data Services: not for complex environments Global Data Services in Action!13 08/12/2015 PRIMARY STANDBY STANDBY STANDBY SYNC ASYNC ASYNC IN CASE OF PROBLEMS ALL READ FROM PRIMARY
  • 14. Global Data Services are the new big improvement Global Data Services in Action!14 08/12/2015 PRIMARY STANDBY STANDBY STANDBY SYNC ASYNC ASYNC GLOBAL DATA SERVICES INFRASTRUCTURE
  • 15. Global Data Services in Action!15 08/12/2015 Global Data Services Overview
  • 16. Global Data Services - Overview Global Data Services in Action!16 08/12/2015 Introduced in 12.1.0.1 Goal: centralize database service management – In replicated environments – For applications which are replication-aware Extra-cost option: requires Oracle Active Data Guard or Oracle Golden Gate SALES SALES SALES GLOBAL DATA SERVICES INFRASTRUCTURE SERVICE
  • 17. Global Data Services – Big Picture Global Data Services in Action!17 08/12/2015 SALES SALESSALES SALES SALESSALES Golden Gate, Active Data Guard, Streams, […]
  • 18. Global Data Services – Big Picture Global Data Services in Action!18 08/12/2015 Global Service Manager 1 Global Service Manager 2 Global Service Manager 3 Global Service Manager 4 SALES SALESSALES SALES SALESSALES Golden Gate, Active Data Guard, Streams, […] GDS POOL: SALES (sales_rw, sales_ro, sales_rep, …) GDS CATALOG GDS CATALOG
  • 19. Global Data Services – Big Picture Global Data Services in Action!19 08/12/2015 Global Service Manager 1 Global Service Manager 2 Global Service Manager 3 Global Service Manager 4 SALES SALESSALES SALES SALESSALES Golden Gate, Active Data Guard, Streams, […] GDS POOL: SALES (sales_rw, sales_ro, sales_rep, …) GDS CATALOG GDS CATALOG Global Services GDS Pool Databases GDS Pool Databases
  • 20. Global Data Services – How it works? Global Data Services in Action!20 08/12/2015 SALES SALES SALESSALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS 1 Request a connection for a global service to a GSM Service naming: <gs_name>.<gds_pool>.<gds_configuration> 1
  • 21. Global Data Services – How it works? Global Data Services in Action!21 08/12/2015 SALES SALES SALESSALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS 1 2 Request a connection for a global service to a GSM Service naming: <gs_name>.<gds_pool>.<gds_configuration> GSM returns the local listener address (SCAN is bypassed) 1 2
  • 22. Global Data Services – How it works? Global Data Services in Action!22 08/12/2015 SALES SALES SALESSALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS 1 2 3 Request a connection for a global service to a GSM Service naming: <gs_name>.<gds_pool>.<gds_configuration> GSM returns the local listener address (SCAN is bypassed) Connect to the Global Service active locally on the target 1 2 3
  • 23. Global Data Services in Action!23 08/12/2015 Global Data Services Setup
  • 24. Global Data Services - Setup Global Data Services in Action!24 08/12/2015
  • 25. GDS – Catalog/Regions/Pools Global Data Services in Action!25 08/12/2015 Create the GDS catalog administrator account in a 12c database – For CDBs it must be a common user (or ORA-45562 raised) Internally, the GDS catalog data is stored in the schema GSMADMIN_INTERNAL (tables, PL/SQL code, jobs, types,…) SQL> CREATE USER c##gsm_admin IDENTFIED BY <password>; SQL> GRANT gsmadmin_role TO c##gsm_admin; GDSCTL> CREATE CATALOG -database gsm01.trivadis.com:1521/repo_site1.trivadis.com -user c##gsm_admin/<password> -region germany,switzerland #default region: regionora -gdspool sales,order_entry #default pool: dbpoolORA -configname tvddbcloud #default name: oradbcloud -autovncr on GDS POOL GDS Region12c
  • 26. Global Service Manager Global Data Services in Action!26 08/12/2015 To connect to the catalog database, GSM uses the GSMCATUSER database account Each GSM needs to be registered in the GDS configuration GSM needs to be started and integrated in the cluster/OS startup procedures SQL> ALTER USER GSMCATUSER ACCOUNT UNLOCK; SQL> ALTER USER GSMCATUSER IDENTFIED BY <password>; GDSCTL> ADD GSM -gsm gsm1 -listener 1530 -catalog gds01.trivadis.com:1521/repo_site1.trivadis.com -region germany -wpwd <password> "gsmcatuser" password: Create credential oracle.security.client.connect_string1 GSM successfully added GDSCTL> START GSM –gsm gsm1 Wallet stored in $TNS_ADMIN/gsmwallet GSM
  • 27. GDS Pool Databases Global Data Services in Action!27 08/12/2015 For each target GDS pool database, unlock the GSMUSER user A pool database must be added to the correct GDS region One GDS pool can host many pool databases A database can belong only to one GDS pool GDSCTL> ADD DATABASE -connect GDSDB2_SITE1.TRIVADIS.COM -region germany -gdspool order_entry "gsmuser" password: DB Unique Name: GDSDB2_SITE1 SQL> ALTER USER GSMUSER ACCOUNT UNLOCK; SQL> ALTER USER GSMUSER IDENTFIED BY <password>;
  • 28. GDS Pool DBs (Data Guard broker) Global Data Services in Action!28 08/12/2015 PRIMARY STANDBY STANDBY Data Guard config can be added only to an empty GDS pool (or ORA-44881) For each standby database, the region need to be manually specified GDSCTL> ADD BROKERCONFIG -connect db01.trivadis.com:1521/DB1_SITE1.TRIVADIS.COM -pwd <password> -gdspool sales -region germany Catalog connection is established DB Unique Name: GDSDB1_SITE1 GDSCTL> CONFIG DATABASE Name Pool Status Region ---- ---- ------ ------ gdsdb1_site2 sales Ok gdsdb1_site3 sales Ok gdsdb1_site1 sales Ok germany GDSCTL> MODIFY DATABASE -database gdsdb1_site2 -region germany Empty GDS Region
  • 29. Global Data Services in Action!29 08/12/2015 I don’t mind the setup, Show me the services!
  • 30. Global Database Services - Features Global Data Services in Action!30 08/12/2015 Global Data Services support – Local Service Attributes (TAF, rlbgoal, clbgoal, commit outcome…) – Preferred and available databases – Replication lag threshold (ADG only) – Region affinity
  • 31. GDS - Restrictions Global Data Services in Action!31 08/12/2015 Creation of a global service for a target pool database registered in Oracle Restart fails (during registration of a CRS global service resource) For Grid Infrastructure with role separation – Local Listener must run from oracle user, RDBMS_HOME For RAC,the service registration works correctly only with policy-managed database – With administrator-managed RAC databases, the registration does not work (ORA-45540/PRCR-1001) – BUG assigned to development CRS-2509: Resource type 'ora.cluster_vip_net1.type' used in dependency 'hard' does not exist or is not registered srvctl modify listener -user oracle -oraclehome $RDBMS_HOME
  • 32. Global Connection: Client-side Global Data Services in Action!32 08/12/2015 GSALES_RO.TRIVADIS.COM = (DESCRIPTION= (CONNECT_TIMEOUT=5)(RETRY_COUNT=3)(TRANSPORT_CONNECT_TIMEOUT=3)(FAILOVER=ON) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm01.trivadis.com)(PORT=1530)) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm02.trivadis.com)(PORT=1530))) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm03.trivadis.com)(PORT=1530))) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm04.trivadis.com)(PORT=1530))) (CONNECT_DATA= (SERVICE_NAME=gsales_ro.sales.tvddbcloud) (REGION=germany)))
  • 33. Global Connection: Client-side Global Data Services in Action!33 08/12/2015 GSALES_RO.TRIVADIS.COM = (DESCRIPTION= (CONNECT_TIMEOUT=5)(RETRY_COUNT=3)(TRANSPORT_CONNECT_TIMEOUT=3)(FAILOVER=ON) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm01.trivadis.com)(PORT=1530)) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm02.trivadis.com)(PORT=1530))) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm03.trivadis.com)(PORT=1530))) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm04.trivadis.com)(PORT=1530))) (CONNECT_DATA= (SERVICE_NAME=gsales_ro.sales.tvddbcloud) (REGION=germany))) GSMs Region Switzerland GSMs Region Germany
  • 34. Global Connection: Client-side Global Data Services in Action!34 08/12/2015 GSALES_RO.TRIVADIS.COM = (DESCRIPTION= (CONNECT_TIMEOUT=5)(RETRY_COUNT=3)(TRANSPORT_CONNECT_TIMEOUT=3)(FAILOVER=ON) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm01.trivadis.com)(PORT=1530)) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm02.trivadis.com)(PORT=1530))) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm03.trivadis.com)(PORT=1530))) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm04.trivadis.com)(PORT=1530))) (CONNECT_DATA= (SERVICE_NAME=gsales_ro.sales.tvddbcloud) (REGION=germany))) Intra-Region Failover Intra-Region Failover
  • 35. Global Connection: Client-side Global Data Services in Action!35 08/12/2015 GSALES_RO.TRIVADIS.COM = (DESCRIPTION= (CONNECT_TIMEOUT=5)(RETRY_COUNT=3)(TRANSPORT_CONNECT_TIMEOUT=3)(FAILOVER=ON) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm01.trivadis.com)(PORT=1530)) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm02.trivadis.com)(PORT=1530))) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm03.trivadis.com)(PORT=1530))) (ADDRESS=(PROTOCOL = TCP)(HOST=gsm04.trivadis.com)(PORT=1530))) (CONNECT_DATA= (SERVICE_NAME=gsales_ro.sales.tvddbcloud) (REGION=germany))) Inter-Region Failover
  • 36. Global Connection Load Balancing Global Data Services in Action!36 08/12/2015 Client connection requests are routed to the least-loaded database (like SCAN) – Based on performance, interregion network latency, region affinity and CLB/RLB goal GDSCTL> SERVICES -service gsales_ro –support Service "gsales_ro.sales.tvddbcloud" has 3 instance(s). Affinity: LOCALONLY Instance "sales%31", name: "GDSDB2", db: "GDSDB2_SITE1", region: "germany", status: ready. Request ratio: 35.57%, Sessions: 0, Elapsed time: 115.84 ms. Region "germany": RLB Ratio: 2.99%, Response Time: 115.84 ms, Network Factor: 0 UCPS: 0.70 FLAGS: 0 CPU 100.00 Instance "sales%41", name: "GDSDB2", db: "GDSDB2_SITE2", region: "germany", status: ready. Request ratio: 64.43%, Sessions: 0, Elapsed time: 1.28 ms. Region "germany": RLB Ratio: 97.01%, Response Time: 1.28 ms, Network Factor: 0 UCPS: 1.27 FLAGS: 0 CPU 1.00 GDSCTL> ADD SERVICE -gdspool sales -service gsales_ro –clbgoal [SHORT|LONG] –rlbgoal [SERVICE_TIME | THROUGHPUT]
  • 37. Global Connection Region Affinity - Anywhere Global Data Services in Action!37 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality ANYWHERE SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS SALES SALES
  • 38. Global Connection Region Affinity - Anywhere Global Data Services in Action!38 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality ANYWHERE SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS 1 SALES SALES 1 REMOTE LOCAL
  • 39. Global Connection Region Affinity – Local Only Global Data Services in Action!39 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality LOCAL_ONLY SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS SALES SALES
  • 40. Global Connection Region Affinity – Local Only Global Data Services in Action!40 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality LOCAL_ONLY SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS 1 SALES SALES LOCAL
  • 41. Global Connection Region Affinity – Local Only Global Data Services in Action!41 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality LOCAL_ONLY SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS 1 2 SALES SALES LOCAL CRASH
  • 42. Global Connection Region Affinity – Local Only Global Data Services in Action!42 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality LOCAL_ONLY SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS 1 2 3 SALES SALES LOCAL CRASH TNS-12514
  • 43. Global Connection Region Affinity – Region Failover Global Data Services in Action!43 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality LOCAL_ONLY –region_failover SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS SALES SALESSALES SALES
  • 44. Global Connection Region Affinity – Region Failover Global Data Services in Action!44 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality LOCAL_ONLY –region_failover SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS SALES SALESSALES SALES 1 LOCAL
  • 45. Global Connection Region Affinity – Region Failover Global Data Services in Action!45 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality LOCAL_ONLY –region_failover SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS SALES SALESSALES SALES 1 2 LOCAL CRASH
  • 46. Global Connection Region Affinity – Region Failover Global Data Services in Action!46 08/12/2015 GDSCTL> ADD SERVICE -gdspool sales -service sales_rpt -locality LOCAL_ONLY –region_failover SALES SALES Golden Gate, Active Data Guard, Streams, […] GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY DATABASE CLIENTS SALES SALESSALES SALES 1 2 3 LOCAL CRASH REMOTE
  • 47. Region Affinity: CDB & PDBs Global Data Services in Action!47 08/12/2015 In version 12.1.0.2, Region Affinity for a PDB is ignored Current workaround: create a global service for the CDB$ROOT container, drop it and create again with the same name for the target PDB GDSCTL> CONFIG SERVICE -gdspool sales -service gsales_ro Name: gsales_ro Network name: gsales_ro.sales.tvddbcloud Locality: LOCAL_ONLY Region Failover: No PDB: app1 GDSCTL> SERVICES -service gsales_ro Service "gsales_ro.sales.tvddbcloud" has 2 instance(s). Affinity: ANYWHERE Instance "sales%11", name: "GDSDB1", db: "GDSDB1_SITE2", region: "germany", status: ready. Instance "sales%21", name: "GDSDB1", db: "GDSDB1_SITE3", region: "switzerland", status: ready.
  • 48. Global Service Placement/Failover Global Data Services in Action!48 08/12/2015 For each Global Service a placement attribute can be specified GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -preferred_all | -preferred db1,db2,db3 -available db4 ] DB1 DB2 DB3 DB4 1
  • 49. Global Service Placement/Failover Global Data Services in Action!49 08/12/2015 For each Global Service a placement attribute can be specified GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -preferred_all | -preferred db1,db2,db3 -available db4 ] DB1 DB2 DB3 DB4 1 2
  • 50. Global Service Placement/Failover Global Data Services in Action!50 08/12/2015 For each Global Service a placement attribute can be specified GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -preferred_all | -preferred db1,db2,db3 -available db4 ] DB1 DB2 DB3 DB4 1 2 3
  • 51. Global Service Placement/Failover Global Data Services in Action!51 08/12/2015 For each Global Service a placement attribute can be specified GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -preferred_all | -preferred db1,db2,db3 -available db4 ] DB1 DB2 GDSCTL> relocate service … -old_db db4 -new_db db2 DB3 DB4 1 2 3
  • 52. Role-Based Global Services – Lag Tolerance Global Data Services in Action!52 08/12/2015 Role-based services are supported for pool databases in Data Guard Broker configuration GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -role PRIMARY | -role PHYSICAL_STANDBY -failover_primary –lag 20 DB1 DB2 PRIMARY DB3 1 STANDBY STANDBY
  • 53. Role-Based Global Services – Lag Tolerance Global Data Services in Action!53 08/12/2015 Role-based services are supported for pool databases in Data Guard Broker configuration GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -role PRIMARY | -role PHYSICAL_STANDBY -failover_primary –lag 20 DB1 DB2 PRIMARY DB3 1 2 STANDBY STANDBY STANDBYPRIMARYSTANDBY
  • 54. Role-Based Global Services – Lag Tolerance Global Data Services in Action!54 08/12/2015 Role-based services are supported for pool databases in Data Guard Broker configuration GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -role PRIMARY | -role PHYSICAL_STANDBY -failover_primary –lag 20 DB1 DB2 PRIMARY DB3 1 2 STANDBY STANDBY STANDBYPRIMARYSTANDBY 3 STANDBYPRIMARYSTANDBY LAG>20
  • 55. Role-Based Global Services – Lag Tolerance Global Data Services in Action!55 08/12/2015 Role-based services are supported for pool databases in Data Guard Broker configuration GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -role PRIMARY | -role PHYSICAL_STANDBY -failover_primary –lag 20 DB1 DB2 PRIMARY DB3 1 2 STANDBY STANDBY STANDBYPRIMARYSTANDBY 3 4 STANDBY STANDBY PRIMARYSTANDBY LAG>20
  • 56. Role-Based Global Services – Lag Tolerance Global Data Services in Action!56 08/12/2015 Role-based services are supported for pool databases in Data Guard Broker configuration GDSCTL> ADD SERVICE -gdspool <gds_pool> -service <service> [ -role PRIMARY | -role PHYSICAL_STANDBY -failover_primary –lag 20 DB1 DB2 PRIMARY DB3 1 2 STANDBY STANDBY STANDBYPRIMARYSTANDBY 3 4 STANDBY STANDBY PRIMARYSTANDBY LAG>20 PRIMARYSTANDBY STANDBY LAG<=20 5
  • 57. Global Data Services in Action!57 08/12/2015 DEMO? GSM03 GSM04 GDS Region: SWITZERLAND GSM01 GSM02 GDS Region: GERMANY OLTP OLTPGSMCAT OLTP Global Services: gsales_rw, gsales_ro Pool: Sales
  • 58. Conclusions Global Data Services in Action!58 08/12/2015 Central Database Service Management Works as expected, minor bugs Perfect for complex environments Extra-cost option (GG or ADG)
  • 59. What's your question? 08/12/2015 Global Data Services in Action!59 Robert Bialek Principal Consultant Partner Trivadis SA Ludovico Caldara Oracle ACE Senior Consultant Trivadis SA