replication

Logic standby delay when query with for update clause

January 11, 2012 oracle, replication, system No comments

今天遇到一个奇怪的问题,3个logic standby 中有一个delay 查看任何日志都没有发现错误,有一个transaction在apply一个SQL,这条SQL没有任何问题,SQL所涉及到的表也没有任何问题
当时的apply情况如下:

SID USERNAME MACHINE[……]

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主表缺少主键导致logic standby delay 一例

December 28, 2011 oracle, replication No comments

table缺少primary key 导致logic standby delay 一例

早上在主库做如下操作:

[oracle@racdg1 ~]$ sqlplus ‘/as sysdba’

SQL*Plus: Release 10.2.0.5.0 – Production o[……]

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Down-Stream 配置一例

December 27, 2011 oracle, replication No comments

测试环境:

[oracle@liu ~]$ sqlplus ‘/as sysdba’

SQL*Plus: Release 10.2.0.1.0 – Production on Mon Dec 26 21:53:23 2011

Copyright (c) 1982, 2005, Or[……]

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Physical-standby standbylogfile checksum error

December 23, 2011 oracle, replication No comments

总结下今天DG碰到的问题,本来一个很简单的问题,被我们复杂化衍生出很多问题。

Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 – 64bit Production
With the Partit[……]

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Physical standby ORA-01274

December 16, 2011 oracle, replication No comments

今天新上线的系统物理备库出现以下错误:

[oracle@db-15 ~]$ sqlplus ‘/as sysdba’

SQL*Plus: Release 10.2.0.5.0 – Production on Fri Dec 16 20:37:38 2011

Copyright[……]

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ORA-01555 on Active Physical standby and patchset issue without Central Inventory

December 7, 2011 maintain, oracle, replication 2 comments

今天在生产库解决一个ORA-01555 on Active Physical standby问题:
Applies to:

Oracle Server – Enterprise Edition – Version: 11.2.0.2.0 and later [Release: 11.2[……]

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关于 Logic standby 的相关操作

December 4, 2011 oracle, replication No comments

一. 确认操作的对象和语句是否能被逻辑Standby支持

1.1 由于逻辑Standby是通过SQL应用来保持与Primary数据库的同步。SQL应用与REDO应用是有很大的区别,REDO应用实际上是在物理Standby端进行RECOVER;SQL应用则是分析重做日志文件中的REDO信息,并将[……]

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ORA-16009 in alert log with standby and LGWR ASYNC

December 2, 2011 oracle, replication No comments

今天用10.2.0.1的一套物理DG 转 逻辑 standby 出现大量错误:

primary 端:

— Connected User is Valid
RFS[2]: Assigned to RFS process 30286
RFS[2]: Database moun[……]

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