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GoldenGate Manager启动流程解析

最新推荐文章于 2025-09-19 09:14:27 发布

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本文介绍了Oracle GoldenGate中mgr进程的启动过程及其关联进程的行为变化。mgr启动后，会激活一个特定进程来负责接收来自源端dp进程的trail文件，并将其写入到目的端的文件系统中。

[oracle@hosta ggs]$ ps -ef | grep server
root      2945     1  0 22:12 ?        00:00:00 /usr/bin/hidd --server
root      3342     1  0 22:12 ?        00:00:00 /usr/libexec/gam_server
oracle   15624  3382  0 23:24 pts/1    00:00:00 grep server
[oracle@hosta ggs]$
[oracle@hosta ggs]$
[oracle@hosta ggs]$
[oracle@hosta ggs]$ ggsci

Oracle GoldenGate Command Interpreter for Oracle
Version 11.2.1.0.27 19591627 OGGCORE_11.2.1.0.0OGGBP_PLATFORMS_141006.1156_FBO
Linux, x64, 64bit (optimized), Oracle 11g on Oct  6 2014 16:45:49

Copyright (C) 1995, 2014, Oracle and/or its affiliates. All rights reserved.



GGSCI (hosta) 1> info all

Program     Status      Group       Lag at Chkpt  Time Since Chkpt

MANAGER     STOPPED                                           
REPLICAT    ABENDED     REPFULL     00:00:00      448:53:00   


GGSCI (hosta) 2> start mgr

Manager started.


GGSCI (hosta) 3> info all

Program     Status      Group       Lag at Chkpt  Time Since Chkpt

MANAGER     RUNNING                                           
REPLICAT    ABENDED     REPFULL     00:00:00      448:53:04   


GGSCI (hosta) 4> info all

Program     Status      Group       Lag at Chkpt  Time Since Chkpt

MANAGER     RUNNING                                           
REPLICAT    ABENDED     REPFULL     00:00:00      448:53:11   


GGSCI (hosta) 5> exit
[oracle@hosta ggs]$ ps -ef | grep server
root      2945     1  0 22:12 ?        00:00:00 /usr/bin/hidd --server
root      3342     1  0 22:12 ?        00:00:00 /usr/libexec/gam_server
oracle   16821 16543  2 23:24 ?        00:00:00 ./server -w 300 -p 7819-12818 -m 7809 -k -l /u02/ggs/ggserr.log----->注意此行！
oracle   17614  3382  0 23:24 pts/1    00:00:00 grep server
[oracle@hosta ggs]$

结论：该进程是在目的端的mgr启动的时候被启动的。该进程的作用是接收源头dp进程传输过来的trail文件，写入目的端操作系统的文件系统的指定位置下。