noodba同学写的基于mysql的 WORKLOAD REPOSITORY工具,目前还没有开源 非常的给力！！
主要思想为一台管理机器,集中了所有client端的数据,client 为mysql database 使用host_id来区分 如 host_id=1代表mysql databas[……]
Author: Louis Liu
linux tools part 7– Monitor socket activity
systemtap发行版本提供了socktop,用于监控socket套接字之间的通信,具体如下：
[root@db-42 ~]# socktop -h USAGE: socktop [-d] [-i interval] [-N num] [-P protocol]... [-f family].[......]
Optimizer in Oracle 11g by wwf.
By wwf from ebay COC about Optimizer in Oracle 11g.
[……]
PCIE performance test — LSI vs FusionIO vs VIRI
Testing three PCIE cards’s performance for all of scenes using fio
Reference:fio parameter setting[……]
基于MHA 的MySQL高可用方案
gdb 调试TPCC 一例
TPCC对mysql 5.5.27做一次性能测试时遭遇 Segmentation fault,gdb调试记录之:
[root@db-81 ~]# uname -a Linux db-81 2.6.18-194.el5 #1 SMP Mon Mar 29 22:10:29 EDT 2010[......]
linux tools part 6– network Monitoring (2)
Update exadata flash disk firmware due to poor performance on X2-2
ASR XD报警抛出如下错误
" dm01cel02: Hardware Error has been detected in the Flash Logs on the Cell Node dm01cel02: Please open up a Service Request[......]
linux tools part 5– Trace network information
Nmap (“Network Mapper”) is an open source tool for network exploration and security auditing. It was designed to rapidly scan large networks, although[……]
MySQL key partition and MongoDB TEST
对于业务的激活码需求做了一次关于mysql,mongodb的比对.mysql分为normal,key partition 数量分别是1亿和10亿数据,mysql采用直接访问PK键,partition key为PK,mysql table size 为90G,mongodb table size为15[……]