/* ************************************************************* */
/* Index Fragmentation Status (idsfrag.sql): */
/*[……]
May 14, 2012 maintain, oracle No comments
/* ************************************************************* */
/* Index Fragmentation Status (idsfrag.sql): */
/*[……]
May 11, 2012 MYSQL No comments
来自pythian mysql project
With this plug-in, a DBA can add a new MySQL target just as they can an Oracle database. Oracle Enterprise Manager Agent[……]
April 27, 2012 11g, oracle 4 comments 11g new feature
在pub上看到一个不错的帖子 oracle 11g password delay
对这个特性 做如下说明
Failed Logon Delays
A hacker may attempt a brute force hack to break into your Oracle D[……]
April 26, 2012 maintain, oracle, RAC No comments 11g new feature, asm
ASM – ora.asm error
11.2.0.3 RAC CRS 无法启动
[ohasd(25286)]CRS-2112:The OLR service started on node db-41.
2012-04-25 14:46:13.120
[ohas[……]
April 25, 2012 oracle, RAC 2 comments asm
ASM Preferred mirror Read
Introduction
The concept of the Preferred Read is not a new idea, but is now implemented in Oracle’s ASM volume[……]
April 20, 2012 Internals, oracle No comments scripts
Execution Environment:
Access Privileges:
Requires to be run connected as SYS schema
Usage:
$ sqlplus
SQL*Plus: Release 9.2.0.2.[……]
April 16, 2012 11g, oracle No comments
看到刘兄的一篇文章转载下
最近跟同事测试了下MHA 作为mysql 高可用方案的一种 MHA具有很多优点 DeNA目前采用这种架构 支撑2亿+PV的访问
MHA
一．MHA介绍
MHA自动化主服务器故障转移，快速将从服务器晋级为主服务器(通常在10-30s)，而不影响复制的一致性，不需要花钱买更多的新服务器，[……]
April 1, 2012 Exadata, oracle No comments architecture
Teradata 与 Exadata 的一些对比说明,由于是TD出来的文档 所以有一些片面之词
[……]
March 29, 2012 Architecture, MYSQL No comments High performance
drbd+heartbeat+mysql slave 方案
测试机器IP：public
10.2.0.181 — drbd+heartbeat
10.2.0.182 — drbd+heartbeat
10.2.0.183 — mysql slave
10.2.0.184[……]