Oracle Golden Gate 系列七 -- 配置 GG Manager process

在上篇GG 单向复制的示例中，有配置Manager process，这篇具体来看一下Manager Process 的配置。

Oracle Golden Gate 系列六 --11gR2 Ora2Ora 单向复制GG 示例

http://blog.csdn.net/tianlesoftware/article/details/6950018

一.Overview of the Manager process

To configure andrun Oracle GoldenGate, a Manager process must be running on the source andtarget systems. The Manager process performs the following functions:

要配置GG，必须先要在Source和 Target System上部署Manager Process。 该进程执行一下4个函数：

(1)Start Oracle GoldenGateprocesses

--启动GG 进程

(2)Start dynamic processes

--启动动态进程

(3)Perform trail management

--执行trail 管理

(4)Create event, error, andthreshold reports

--创建event，error和threshold报告

There is oneManager for each Oracle GoldenGate installation. One Manager can support multipleOracle GoldenGate extraction and replication processes.

--每个GG 都必须要有一个Manager Process，一个MP可以支持多个GGExtraction 和 Replication 进程。

二.Configuring Manager

To configureManager, create a parameter file by following these steps. If you installed OracleGoldenGate on a UNIX cluster, configure the Oracle GoldenGate Manager process withinthe cluster application as directed by the vendor’s documentation, so thatOracle GoldenGate will fail over properly with the other applications.

--配置Manager，只需要按照以下步骤创建一个参数文件。

To configure Manager

1.From the Oracle GoldenGatedirectory, run the ggsci program to open the Oracle GoldenGate Software CommandInterface, commonly known as GGSCI.

--在GG的根目录运行ggsci命令，因为这个命令会调用其他的命令，如果不是在根目录下执行，虽然在通过PATH变量也可以找到ggsci命令，但是会找不到其他的文件而报错。

2. In GGSCI, issue the following command toedit the Manager parameter file.

EDIT PARAMS MGR

--在ggsci里执行上述命令，编辑Manager 进程参数

3. Add the following parameter to specifythe Manager port number.

PORT<port_number>

PORT defines theport number on which Manager runs on the local system.

--这个端口是本地OS 的端口

Observe these guidelines:

(1)The default port number is7809.

--默认端口是7809

(2)You must specify either thedefault port number or a different one.

--必须指定这个端口为默认端口或者其他端口

(3)Each Manager instance on asystem must use a different port number.

--每个Manager instance必须使用不同的端口

(4)The port must be unreserved andunrestricted. GGSCI uses this port to request Manager to start processes. TheExtract process uses this port to request Manager to start a remote Collectorprocess or an initial-load Replicat process.

--这个端口不能受限

(5)PORT is the only requiredManager parameter.

--端口是Manager 唯一必须指定的参数

NOTE：

The port numberalso must be specified with the MGRPORT argument of the Extract parameter RMTHOST.

--Extrace 的RMTHOST 也必须指定MGRPORT 端口

三.Recommended parameters

The followingparameters are optional, but recommended for the Manager process.

--第二节讲了Manager 必须指定的参数Port，这里讲了一些可选的参数。

(1)USERID: Required if usingOracle GoldenGate DDL support, specify the Manager user and password with the .

--如果使用DDL，需要创建一个用户来保存相关的table，这里指定该用户的用户名和密码

(2)DYNAMICPORTLIST: Use to specifyup to 256 unreserved, unrestricted ports for dynamic TCP/IP communicationsbetween the source and target systems. The Collector,Replicat, and GGSCIprocesses will use these ports. In the absence of DYNAMICPORTLIST, Managertries to start Collector on port 7840. If 7840 is not available, Manager incrementsby one until it finds an available port.

--动态的指定端口在source 和 targetsystems 进行交流。 默认情况下从7840 端口开始，如果该端口不可用，则端口数加1，知道找到一个可用的。

(3)DYNAMICPORTREASSIGNDELAY:Controls how long Manager waits to assign a port that was assigned before.

--控制Manager 等待分配端口的时间。

(4)AUTOSTART: Starts Extract andReplicat processes when Manager starts. This can be useful, for example, if youwant Oracle GoldenGate activities to begin immediately when you start thesystem, assuming Manager is part of the startup routine. You can use multiple AUTOSTARTstatements in the same parameter file.

--在Manager 启动时，自动启动Extract和replicat进程。 这是一个有用的命令，可以将Manager 添加到stratup routine里，这样Manager启动之后，Extrace 和Replicat 也就可以自动启动了。

(5)AUTORESTART: Starts Extract andReplicat processes again after abnormal termination.

--当Extract 和Replicat 进程异常中断后自动启动。

(6)PURGEOLDEXTRACTS: Purges trailfiles when Oracle GoldenGate has finished processing them. Without using PURGEOLDEXTRACTS,no purging is performed, and trail files can consume significant diskspace.Using PURGEOLDEXTRACTS as a Manager parameter is preferred over using theExtract or Replicat version of PURGEOLDEXTRACTS.

--当trail file 处理完后purge它们，如果没有指定该参数，trail file 会占用大量的磁盘空间。 Manager 的PURGEOLDEXTRACTS参数优先级比Extrace 和Replicat 的PURGEOLDEXTRACTS高。 即会先使用Manager的该参数。

NOTE：

When using PURGEOLDEXTRACTS,do not permit trail files to be deleted by any user or program other than OracleGoldenGate. It will cause PURGEOLDEXTRACTS to function improperly.

注意，如果使用PURGEOLDEXTRACTS，那么不允许出GG之外的用户和程序删除trail files 文件。 否则会导致PURGEOLDEXTRACTS异常。

四.Starting Manager

Manager must berunning before you start other Oracle GoldenGate processes. You can startManager from:

--Manager 必须先与GG 进程启动

(1)The command line of any supportedoperating system

(2)GGSCI

(3)The Services applet on aWindows system if Manager is installed as a service. See the Windowsdocumentation or your system administrator.

(4)The Cluster Administrator toolif the system is part of a Windows cluster. This is the recommended way tobring the Manager resource online. See the cluster documentation or your systemadministrator.

(5)The cluster software of a UNIXor Linux cluster. Refer to the documentation provided by the cluster vendor todetermine whether to start Manager from the cluster or by using GGSCI or thecommand line of the operating system.

4.1 To start Manager from the command line

To run Managerfrom the command shell of the operating system, use the following syntax.

mgr paramfile<param file> [reportfile <report file>]

The reportfile argumentis optional and can be used to store the Manager process report in a locationother than the default of the dirrpt directory in the Oracle GoldenGateinstallation location.

4.2 To start Manager from GGSCI

1. From the Oracle GoldenGate directory,run GGSCI.

2. In GGSCI, issue the following command.

START MANAGER

On Windows systems, you can use the BOOTDELAYMINUTES parameter to specify how long aftersystem boot time Manager delays until it starts its processing activities.

NOTE:

When startingManager from the command line or GGSCI on Windows Server2008 with User Account Control enabled, you will receive a UAC prompt requestingyou to allow or deny the program to run.

五.Stopping Manager

Manager runsindefinitely or until stopped by a user. In general, Manager should remain runningwhen there are synchronization activities being performed. Manager performs importantmonitoring and maintenance functions, and processes cannot be started unless Manageris running.

--在停Manager 之前，需要先停GG 进程，因为Manager负责监控和维护其他的进程。

To stop Manager

(1)On UNIX, Linux, and z/OS usingUSS, Manager must be stopped by using the STOP MANAGER command in GGSCI.

STOP MANAGER [!]

Where: ! stops Manager without userconfirmation.

--这里可选的！表示不经过用户确认直接stop

(2)On Windows, if Manager isinstalled as a service, you can stop it from the Services applet. See theWindows documentation or your system administrator.

(3)In a Windows cluster, Managermust only be stopped by taking the Manager resource offline by using theCluster Administrator. If you attempt to stop the Manager service from theGGSCI interface, the cluster monitor interprets it as a resource failure and willattempt to bring the resource online again. If a stop request is repeatedly submittedfrom the GGSCI interface, and the restart threshold of the Manager cluster resourceis exceeded, the cluster monitor marks the Manager resource as failed.

(4)In a UNIX or Linux cluster,refer to the documentation provided by the cluster vendor to determine whetherManager should be stopped from the cluster or by using GGSCI.

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