Services in der Oracle Datenbank - DOAG

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Service,please!ServicesinderOracleDatenbank

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Agenda

1 Einleitung

2 WasisteinOracleDatenbankService?

3 WiewerdenServicesverwendet?

4 WannmüssenServicesverwendetwerden?

5 WannsolltenServicesverwendetwerden?

6 Zusammenfassung

Einleitung

Einleitung

mzwo =(DESCRIPTION_LIST =

(FAILOVER = ON)(LOAD_BALANCE = OFF)(DESCRIPTION =

(ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = m2doag1)(PORT = 1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = m2doag2)(PORT = 1521))

)(CONNECT_DATA =

(SERVICE_NAME = mzwo)(SERVER = DEDICATED)

) )

)

DefinitionderConnection:

Einleitung

XYZ-Anwendung

Username XYZ

Passwort **********

Server 10.43.15.7

Port 1521

VerbindungzuOracle-Datenbank:

SID XE

Anmelden

....

[ORACLE]

USER=XYZ

PASS=VERYSECRET

SERVER=10.43.15.7

PORT=1521

SID=XE

....

Einleitung

Agenda

1 Einleitung





6 Zusammenfassung

DieStrukturderDatenbank


ControlFiles

OnlineLogfiles

ParameterFile

PasswordFile

ArchiveLogfiles

OracleDatenbank

Tablespaces

Datafiles

Segmente

Extents

OracleDataBlocks


OracleDatenbank

DB_NAMEmzwo

InstanceSGA

SharedPool

StreamsPool LargePool

JavaPool Buffer Cache LogBuffer

SMON PMON DBWn

CKPT LGWR ARCn

INSTANCE_NAMEmzwo

=ORACLE_SIDmzwo

DBID3756491154

Memory

Prozesse

VerbindungzurDatenbank

OracleDatenbank

DB_NAMEmzwo

Instance

ListenerDBID

3756491154INSTANCE_NAME

mzwo

ORACLE_SIDmzwo

Port1521

SIDmzwo

SERVICE_NAMEmzwo


OracleDatenbank

DB_NAMEmzwo

Instance

Listener DBID3756491154

INSTANCE_NAMEmzwo

ORACLE_SIDmzwo

Port1521

SIDmzwo

SERVICE_NAMEmzwo

SIDmzwo

SERVICE_NAMEmzwo

alter system set service_names = ‘mzwo, oltp, apex, dwh, report‘;

SERVICE_NAMEoltp

SERVICE_NAMEapex

SERVICE_NAMEdwh

SERVICE_NAMEreport

SERVICE_NAMEoltp

SERVICE_NAMEapex

SERVICE_NAMEdwh

SERVICE_NAMEreport


OracleDatenbank

DB_NAMEmzwo

Instance

Listener DBID3756491154

INSTANCE_NAMEmzwo

ORACLE_SIDmzwo

SIDmzwo

SERVICE_NAMEmzwo

SERVICE_NAMEoltp

SERVICE_NAMEapex

SERVICE_NAMEdwh

SERVICE_NAMEreport

Listening Endpoints Summary...

(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=m2doag)(PORT=1521)))

Services Summary...

Service “mzwo" has 1 instance(s).

Instance “mzwo", status READY, has 1 handler(s) for this service...

Service “oltp" has 1 instance(s).


Service “apex" has 1 instance(s).


Service “dwh" has 1 instance(s).


Service “report" has 1 instance(s).


Service “mzwoXDB" has 1 instance(s).


Port1521

DefinitionService

AliasnamefüreineodermehrereDatenbankinstanzen

Default-ServiceentsprichtdemDatenbanknamen

DatenbankinstanzkanneinenodermehrereServicesbeimListener registrieren

ClientmussbeiderVerbindungkeineInstanzangeben

GDS:Clientweißnicht,woderServiceläuft

VerwendungService

GleichartigeAnwendungen

MitServicesApplikationengruppieren

Prozessgruppen(OLTP,DWH,Batches,Web-Zugriffe)

GleichartigeProgrammtypen(Client-Server,APEX,PHP)

ApplikationeninTeilbereicheaufteilen

GleicheSLAs

Applikationengetrennthandhaben

Agenda

1 Einleitung




5 Warnn solltenServicesverwendetwerden?

6 Zusammenfassung


OracleDatenbank

DB_NAMEmzwo

DBID3756491154

Instance2

INSTANCE_NAME mzwo2ORACLE_SID mzwo2

Instance3


Instance6


:RealApplicationCluster

Instance

INSTANCE_NAME mzwoORACLE_SID mzwo

Instance1

INSTANCE_NAME mzwo1ORACLE_SID mzwo1SERVICE_NAME mzwoSERVICE_NAME oltp

SERVICE_NAME apexSERVICE_NAME report SERVICE_NAME dwh

Services Summary...

....


Instance “mzwo1", status READY, has...












...




VerbindungzurDatenbank:RealApplicationCluster

Instance2 Instance3 Instance6


Instance1SERVICE_NAME mzwoSERVICE_NAME oltp

SERVICE_NAME apexSERVICE_NAME reportSERVICE_NAME dwh

Services Summary...

....







....

LokalerListener aufInstance1 „Globaler“SCAN-Listener

Services Summary...

....














...







....






Services Summary...

....







....

LokalerListener aufInstance1 „Globaler“SCAN-Listener






SCAN-Listener m2scan

LokalerListener LokalerListener LokalerListener LokalerListener

scott/tiger@m2scan:1521/dwh

scott/tiger@m2scan:1521:dwh

scott/tiger@mzwo-host6:1521:dwh

scott/tiger@mzwo-host6:1521/dwh

✓

⚠

❌

❌






SCAN-Listener m2scan

LokalerListener LokalerListener LokalerListener LokalerListener

oltpdb =(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = m2scan)(PORT = 1521)) )(CONNECT_DATA =(SERVICE_NAME = oltp)(SERVER = DEDICATED) ))

srvctl add service–db mzwo-service oltp-preferred “mzwo1,mzwo2,mzwo3“-tafpolicy BASIC-failovertype SESSION-failovermethod BASIC.....

scott/tiger@oltpdbscott/tiger@m2scan/oltp

Agenda

1 Einleitung





6 Zusammenfassung

VerwendungvonServices:DataGuard

Active DataGuard SnapshotStandby


PrimaryDatabaseSERVICE_NAME mzwo SERVICE_NAME mzwo SERVICE_NAME mzwo

host-prim host-dg host-snap

mzwo =(DESCRIPTION_LIST =(FAILOVER = ON)(LOAD_BALANCE = OFF)(DESCRIPTION =(ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = host-prim)(PORT = 1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = host-dg)(PORT = 1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = host-snap)(PORT = 1521))

)(CONNECT_DATA =(SERVICE_NAME = mzwo)(SERVER = DEDICATED)

) )

)




PrimaryDatabaseSERVICE_NAME mzwo

SERVICE_NAME oltp

SERVICE_NAME apex

SERVICE_NAME report

SERVICE_NAME mzwo SERVICE_NAME mzwo

SERVICE_NAME schulung


srvctl add service–db mzwo-service oltp-role PRIMARY

.....

srvctl add service–db mzwo-service report-role PHYSICAL_STANDBY

.....

srvctl add service–db mzwo-service apex-role PRIMARY

.....

srvctl add service–db mzwo-service schulung-role SNAPSHOT_STANDBY

.....




PrimaryDatabaseSERVICE_NAME mzwo

SERVICE_NAME oltp

SERVICE_NAME apex

SERVICE_NAME report




oltpdb =(DESCRIPTION_LIST =(FAILOVER = ON)(LOAD_BALANCE = OFF)(DESCRIPTION =(ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = host-prim)(PORT = 1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = host-dg)(PORT = 1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = host-snap)(PORT = 1521))

)(CONNECT_DATA =(SERVICE_NAME = oltp)(SERVER = DEDICATED)

) )

)


PrimaryDatabase SnapshotStandby


PrimaryDatabase

SERVICE_NAME oltp

SERVICE_NAME apex

SERVICE_NAME report




oltpdb =(DESCRIPTION_LIST =(FAILOVER = ON)(LOAD_BALANCE = OFF)(DESCRIPTION =(ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = host-prim)(PORT = 1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = host-dg)(PORT = 1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = host-snap)(PORT = 1521))

)(CONNECT_DATA =(SERVICE_NAME = oltp)(SERVER = DEDICATED)

) )

)

VerwendungvonServices:Multitenant

Instance



Instance

Services Summary...

....


Instance “mzwo", status READY, has...









Service “schulung" has 1 instance(s).


....

Container INSTANCE_NAME =ORACLE_SID =mzwo


Services Summary...

....













....


OLTP


Services Summary...

....













....


OLTP APEX


Services Summary...

....













....


OLTP APEX DWH


Services Summary...

....













....


OLTP APEX DWH REPORT


Services Summary...

....













....


OLTP APEX DWH REPORT SCHULUNG


Services Summary...

....













....


OLTP APEX DWH REPORT SCHULUNG

scott/tiger@m2doag:1521:mzwo

✓

⚠

❌

scott/tiger@m2doag:1521/mzwo

scott/tiger@m2doag:1521:oltp

scott/tiger@m2doag:1521/oltp

scott/tiger@m2doag:1521:apex

scott/tiger@m2doag:1521/apex

✓

❌

✓

VerwendungvonServicesnotwendig

RealApplicationCluster DataGuard ManualStandby

AutomatischesLoadBalancingAutomatischerClientFailoverSCAN-Listener mitSIDgehtnicht

AutomatischerClientSwitchoverAutomatischerClientFailover

AutomatischerClientReconnect

Multitenant GlobalDataServices Sharding

FunktioniertnurüberServiceConnectzuPDBnurüberService FunktioniertnurüberService

Sackgasse

XYZ-Anwendung

Username XYZ

Passwort **********

Server 10.43.15.7

Port 1521


SID XE

Anmelden

....

[ORACLE]

USER=XYZ

PASS=VERYSECRET

SERVER=10.43.15.7

PORT=1521

SID=XE

....

Highway

XYZ-Anwendung

Username XYZ

Passwort **********

Server 10.43.15.7

Port 1521


Service oltp

Anmelden

....

[ORACLE]

USER=XYZ

PASS=VERYSECRET

SERVER=10.43.15.7

PORT=1521

SERVICE=oltp

....

....

[ORACLE]

USER=XYZ

PASS=VERYSECRET

CONNECT=m2scan:1521/oltp

....

....

[ORACLE]

USER=XYZ

PASS=VERYSECRET

CONNECT=m2scan:1521/oltp

....

Agenda

1 Einleitung





6 Zusammenfassung

AnlegeneinesService:SingleInstance

alter system set service_names = ‘mzwo, oltp, apex, dwh, report‘;

ServicesstehenunmittelbarzurVerfügung

exec dbms_service.create_service(service_name => ‘oltp', network_name => ‘oltp')

exec dbms_service.create_service(service_name => ‘apex', network_name => ‘apex')

exec dbms_service.create_service(service_name => ‘dwh', network_name => ‘dwh')

exec dbms_service.create_service(service_name => ‘report', network_name => ‘report')

Servicemussexplizitgestartetwerden

exec dbms_service.start_service(‘oltp')

Alternativ:

BeendeneinesService:SingleInstance

alter system set service_names = ‘mzwo‘;

AlleServicesaußermzwo werdenunmittelbarbeendet.AktiveSessionsbleibenbestehen!

exec dbms_service.stop_service(‘oltp')

exec dbms_service.stop_service(‘apex')

exec dbms_service.stop_service(‘dwh')

exec dbms_service.stop_service(‘report')

AktiveSessionskönnenbeendetwerden:

exec dbms_service.disconnect_session(‘apex‘,IMMEDIATE)

Alternativ:

AnlegeneinesService:RealApplicationCluster

srvctl add service –db mzwo -service oltp -preferred “inst1,...“ -tafpolicy BASIC

-failovertype SESSION -failovermethod BASIC .....

srvctl start service –db mzwo –service “oltp, ....“ [–instance ....] ....

Servicemussexplizitgestartetwerden

BeendeneinesService:RealApplicationCluster

srvctl stop service –db mzwo –service “oltp, ....“ [–instance ....] ....

Servicewirdbeendet,aktiveSessionsbleibenbestehen

srvctl stop service –db mzwo –service “oltp, ....“ [–instance ....] .... -force

ServiceundaktiveSessionswerdenunmittelbarbeendet

AnlegeneinesService:DataGuard

srvctl add service –db mzwo -service oltp -role PRIMARY .....srvctl add service –db mzwo -service apex -role PRIMARY .....srvctl add service –db mzwo -service report -role PHYSICAL_STANDBY .....srvctl add service –db mzwo -service schulung -role SNAPSHOT_STANDBY .....

BeiVerwendungvonOracleRestart:

create or replace trigger ich_bin_primary after startup|db_role_change on databasedeclarerolle varchar2(30);

beginselect database_role into rolle from v$database;

if rolle = 'PRIMARY' thendbms_service.start_service('OLTP');dbms_service.start_service('APEX');

end if;end;

OhneVerwendungvonOracleRestart:

WannsolltenServicesverwendetwerden?

EinfacheAntwort:Immer!

WannsolltenServicesverwendetwerden?

SeitOracle8irecommended! Oracle8iwurde1998released.

DerDefault-ServicebleibtdemAdministratorvorbehalten.

KontrolleüberdieDatenbankbehalten:

NeuesReleasederAnwendungeinspielen

AmoklaufendeProzesseaussperren

WievielLastüberwelchenService

Wieviele ProzesseüberwelchenService

RessourcenbegrenzungüberResource Manager(CPU,I/O)

Ressourcenzeitgesteuertzuweisen

Schemas/Datenbankentransparentverschieben

∞mehrMöglichkeiten.....

Agenda

1 Einleitung





6 Zusammenfassung

Zusammenfassung

KeinDatenbankzugriffüberSID!

DerDefault-ServiceistdemAdministratorvorbehalten!

mzwo =(DESCRIPTION =(ADDRESS =(PROTOCOL = TCP)(HOST = m2doag)(PORT = 1521)) )(CONNECT_DATA =(SID = mzwo)(SERVER = DEDICATED) ) )

mzwo =(DESCRIPTION =(ADDRESS =(PROTOCOL = TCP)(HOST = m2doag)(PORT = 1521)) )(CONNECT_DATA =(SERVICE_NAME = oltp)(SERVER = DEDICATED) ) )

sqlplus scott/tiger@mzwo

sqlplus scott/tiger@m2doag:1521/oltp

sqlplus scott/tiger@m2doag/oltp

jdbc:oracle:thin:/@m2doag/oltp

jdbc:oracle:thin:/@m2doag:1521/oltp

Einleitung

Wir kümmern uns!

merlin.zwoInfoDesignGmbH&Co.KGJochenKutscherukElsa-Brändström-Straße1476228KarlsruheTel.0721– 1320960

[email protected]://www.merlin-zwo.de

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Services in der Oracle Datenbank - DOAG

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