oracle goldengate 参数详解（转MOS：Oracle GoldenGates ample parameter files）

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oracle goldengate 参数详解（转MOS：Oracle GoldenGates ample parameter files）

Oracle GoldenGate sample parameter files

总结：

一直以来对oracle goldengate许多参数比较疑惑，正好在MOS看到这个文章，转载到BLOG，以备参考

Objective: This paper provides sample example of Oracle GoldenGate parameter files that can be used to configure Oracle GoldenGate replication setup inline with recommended best practices. The example is generic and can serve as a starting point for a more customized Oracle GoldenGate implementation

Process name: Manager

Description: Manager is GoldenGate's parent process and is responsible for the management of GoldenGate processes, resources, user interface, and the reporting of thresholds and errors.

Manager parameter file (Sample)

-- Manager port number

PORT

-- As a Manager parameter, PURGEOLDEXTRACTS allows to manage trail

-- files in a centralized fashion and take into account multiple

-- processes.

PURGEOLDEXTRACTS , USECHECKPOINTS, MINKEEPHOURS MINKEEPFILES

-- Start one or more Extract and Replicat processes automatically after -- they fail. AUTORESTART provides fault tolerance when something

-- temporary interferes with a process, such as intermittent network

-- outages or programs that interrupt access to transaction logs.

AUTORESTART EXTRACT *, RETRIES , WAITMINUTES , RESETMINUTES

--This is to specify a lag threshold that is considered critical,

--and to force a warning message to the error log. Lagreport parameter

--specifies the interval at which manager checks for extract / replicat --lag.

LAGREPORTMINUTES

LAGCRITICALMINUTES

Process name: Extract

Description: The Extract process captures either full data records or transactional data changes, depending on configuration parameters, and then sends the data to a target system to be applied to target tables or processed further by another process, such as a load utility.

Extract parameter file (Sample)

-- ###################################################################

-- Runcmd: ADD EXTRACT , TRANLOG, BEGIN NOW

-- Runcmd: ADD EXTTRAIL ,

-- EXTRACT , Megabytes

-- Name of the extract process. Limited to 8 charecters.

EXTRACT

-- DB environment settings

SETENV (ORACLE_HOME = "" )

SETENV (ORACLE_SID="")

-- OGG database user login

USERID password , encryptkey default

-- Local trail info

EXTTRAIL

-- Prevent data looping. This is generally used in bi-directional

-- configuration

TRANLOGOPTIONS EXCLUDEUSER

-- ASM login info (Oracle only. If db is using ASM)

TRANLOGOPTIONS ASMUSER sys@, ASMPASSWORD , encryptkey default

--DBLOGREADER enables Extract to use a read buffer size of up to 4 MB --- in size. A larger buffer may improve the performance of Extract when -- redo rate is high. The db has to be 10.2.0.5 or higher to use

-- this feature. If DBLOGREADER parameter is in place then the above

-- ASMUSER parameter should not be used.

TRANLOGOPTIONS DBLOGREADER, DBLOGREADER BUFSIZE [x], BUFSIZE [y]

--DDL replication parameters

DDL INCLUDE ALL, EXCLUDE OBJNAME ". "

DDLOPTIONS ADDTRANDATA

--Discard file location.

DISCARDFILE , APPEND Megabytes

-- Use the DISCARDROLLOVER parameter to set a schedule for aging discard --files.

DISCARDROLLOVER AT on

-- Use the REPORTROLLOVER parameter to force report files to age on a

-- regular schedule, instead of when a process starts

REPORTROLLOVER AT on

-- Use the REPORTCOUNT parameter to report a count of transaction

-- records that Extract or Replicat processed since startup

REPORTCOUNT EVERY HOURS, RATE

-- Use the FETCHOPTIONS parameter to control certain aspects of the way -- that GoldenGate fetches data

FETCHOPTIONS, USESNAPSHOT, NOUSELATESTVERSION, MISSINGROW REPORT

STATOPTIONS REPORTFETCH

-- Warn for long running txns

WARNLONGTRANS H, CHECKINTERVAL m

-- List of tables

Table .

..

Pump (Extract) Parameter file (Sample)

-- Runcmd: ADD EXTRACT , EXTTRAILSOURCE

-- Path/two character trail id>

-- Runcmd: ADD RMTTRAIL ,

-- EXTRACT , Megabytes

-- Name of the Pump process. Limited to 8 charecters.

EXTRACT

-- Oracle environment settings

SETENV (ORACLE_HOME = "" )

SETENV (ORACLE_SID="")

-- In passthru mode GoldenGate pump process cascades captured data from -- source to target without logging in to the source database

Passthru

-- Remote host and remort manager port to write trail

RMTHOST , MGRPORT

-- Remote trail info

RMTTRAIL

--Discard file location.

DISCARDFILE , APPEND Megabytes

-- Use the DISCARDROLLOVER parameter to set a schedule for aging discard --files.

DISCARDROLLOVER AT on

-- Use the REPORTROLLOVER parameter to force report files to age on a

-- Regular schedule, instead of when a process starts

REPORTROLLOVER AT on

-- Use the REPORTCOUNT parameter to report a count of transaction

-- Records that Extract or Replicat processed since startup

REPORTCOUNT EVERY HOURS, RATE

-- List of tables

Table .

Process name: Replicat

Description: The Replicat process reads data extracted by the Extract process and applies it to target tables or prepares it for use by another application, such as a load application.

Replicat parameter file

###################################################################

-- Runcmd: ADD REPLICAT , EXTTRAIL

-- Name of the replicat process. Limited to 8 charecters.

REPLICAT

-- Oracle environment settings

SETENV (ORACLE_HOME = "" )

SETENV (ORACLE_SID= "")

SETENV (NLS_LANG = ="")

-- OGG database user login

USERID password , encryptkey default

--Discard file location.

DISCARDFILE , APPEND Megabytes

--DDL replication parameters

DDL INCLUDE ALL, EXCLUDE OBJNAME "."

DDLOPTIONS REPORT

-- The following parameter speeds up replicat processing rate. The

-- parameter alters the replicat oracle session to not wait for commits -- to be persisted to the redo.

SQLEXEC "ALTER SESSION SET COMMIT_WRITE = NOWAIT"

-- Use the BATCHSQL parameter to increase the performance of Replicat. -- BATCHSQL causes Replicat to organize similar SQL statements into arrays and apply -- them at an accelerated rate.

BATCHSQL

-- Use the DISCARDROLLOVER parameter to set a schedule for aging discard --files.

DISCARDROLLOVER AT on

-- Use the REPORTROLLOVER parameter to force report files to age on a

-- regular schedule, instead of when a process starts

REPORTROLLOVER AT on

-- Use the REPORTCOUNT parameter to report a count of transaction

-- records that Extract or Replicat processed since startup

REPORTCOUNT EVERY HOURS, RATE

-- List of tables (MAP statements)

MAP .

..

GLOBALS file

The GLOBALS file stores parameters that relate to the GoldenGate instance as a whole, as opposed to runtime parameters for a specific process.

Globals parameter file

-- Specifies the name of the Manager process when it is installed as a Windows service.

MGRSERVNAME

-- Specifies a default checkpoint table

CHECKPOINTTABLE

-- Specifies the name of the schema that contains the database objects that support DDL

-- synchronization for Oracle

GGSCHEMA

-- Specifies a non-default name for the DDL history table that supports DDL

-- synchronization for Oracle.

DDLTABLE

-- Specifies a non-default name for the DDL marker table that supports DDL

-- synchronization for Oracle

MARKERTABLE

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