flyinweb's blog

Despite of my high load at work I decided to release mmm-1.0-pre2 today. There are some small, but critical fixes added and much more coming next week (or little bit later if mysqlconf will take more time than I think).

After the first alpha release I’ve received lots of emails, some messages in mmm-devel mail list and even some bug reports in Google Code bug tracking. One of the most asked things was documentation. So, I decided to write some posts in this blog (sorry to non-sql-related readers) and them compose some docs for final release using these posts and comments from readers. This post will be first in mmm-series and will describe how to use mmm in simple master+master scheme where one master accept write requests and both masters accept read requests. This post will provide you with detailed instructions about MySQL setup, permissions setting, mmm installation and configuration and cluster management.

This example will guide you through a simple IP based load balancing solution that handles ssl traffic.

It appears this configuration wasn’t working with HAProxy version 1.3.20 due to the “option nolinger” feature. I have removed it from the configuration and can confirm it works well with HAProxy v.1.3.15 to v.1.3.20. Because of this, you’ll also notice a significant increase in TIME_WAIT sessions, as well as ip_conntrack_count increasing from ~150 to ~925.

Linux系统与性能监控内容：

一、Linux System and Performance Monitoring(CPU篇)
二、Linux System and Performance Monitoring(I/O篇)
三、Linux System and Performance Monitoring(Network篇)
四、Linux System and Performance Monitoring(总结篇)

PowerShell GUI ScripBlock Monitor Script

I made a GUI script for monitoring PowerShell scriptblocks:

It will take and Interval in Seconds and it will show the result in a GUI datagrid, refreshed at the set interval
(by re-running the scriptBlock )

首先准备好必须的工具如下：

制作工具：iexpress.exe 和makecab.exe，
签名工具：cert2spc.exe，makecert.exe，signcode.exe

背景：

Policy file changes in Flash Player 9 and Flash Player 10

http://www.adobe.com/devnet/flashplayer/articles/fplayer9_security_03.html

昨天做测试的时候遇到一个问题，做好的SWF在Flash AS3中调试通过，但是发布到html中之后就无法得到数据了。查了一些资料之后找到了解决办法。这里感谢 剑心 提供帮助，以及同事若水三千提供Java代码及日志记录。

1、问题描述

   将flash发布为html格式后，加载页面后，swf无法与服务器进行socket通信。Flash端显示的错误为：
securityErrorHandler信息: [SecurityErrorEvent type="securityError" bubbles=false cancelable=false eventPhase=2 text="Error #2048"]

   在服务器端显示的信息是由客户端尝试进行连接，但是无法接受数据。接受的数据显示为空。

mytop - a top clone for MySQL

About

mytop is a console-based (non-gui) tool for monitoring the threads and overall performance of a MySQL 3.22.x, 3.23.x, and 4.x server. It runs on most Unix systems (including Mac OS X) which have Perl, DBI, and Term::ReadKey installed. And with Term::ANSIColor installed you even get color. If you install Time::HiRes, you'll get good real-time queries/second stats. As of version 0.7, it even runs on Windows (somewhat).