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After I was done with install Memcached on CentOS a while ago, I just know today that there are 2 different PECL modules. One is "Memcache PECL" while another is "Memcached PECL". The one I did before is "Memcache PECL", so, now, I try to install "Memcached PECL" which is newer and require libmemcached library.

The content below is almost exactly to my previous Memcache PECL installed. Only a few changes to install Memcached PECL instead.

I just want to try if Memcached can really help my server load or not. So, I look around to find the way how to do it. There are a couple ways but to me, below are what I did to installed it.

Get Libevent which is require to install Memcached. Their homepage is here -> http://www.monkey.org/~provos/libevent/

Then, get Memcached from http://memcached.org

First of all, if you are using DirectAdmin in PHP-CGI (suPHP) mode, don't waste your time follow this HOW-TO. Although these steps work with PHP-CGI but you will get nothing from doing it. For PHP-CLI, I found that it help to decrease my server load from about 10 or more down to about 1 but always less than 2. (I have quad core CPU and my problem before is that CPU usage is almost always 100%.) It's useful module that you should have it installed.

Step 1 : Get XCache and uncompress it


shell> cd /tmp

My server was running great for about a month without reboot. Yesterday, I just thought about what many people said that if a server is running fine, don't try to restart it. If you do, there is a chance that a server won't start back up normally. No one explain why but then, I thought about it and for some reason, I wanted to try to restart it that night. I didn't think I will run into any problem but I was wrong.

mysqlreport makes a friendly report of important MySQL status values. mysqlreport transforms the values from SHOW STATUS into an easy-to-read report that provides an in-depth understanding of how well MySQL is running. mysqlreport is a better alternative (and practically the only alternative) to manually interpreting SHOW STATUS.

When I was trying to use mysqlreport under CentOS 5.2 64 bit + DirectAdmin 1.3.2.3 Custom Build 1.1. I got error when run "./mysqlreport"

First of all, I'm not an Linux/DirectAdmin expert. I just played around with them and found the way to do it. I tried to install Cacti on my server but I couldn't find a complete instruction to do it. So, I just gathered all information I found into one place so that it is easier for many others. I hope it can help someone that needs the same thing that I did.

The software I use:

- CentOS 5.2 - 64-bit
- DirectAdmin 1.323 - Custombuild 1.1.13
     - PHP 5 - CGI
     - Apache 2.2
     - MySQL 5
- Cacti 0.8.7b

Package Required by Cacti :

* RRDTool 1.0.49 or 1.2.x or greater
* MySQL 3.23 or greater, 4.0.20d or greater highly recommended for advanced features
* PHP 4.1 or greater, 4.3.6 or greater highly recommended for advanced features

Apache, PHP and MySQL are already installed by DirectAdmin. However, there are 2 required packages which are net-smtp and RRDTool that I need to install.

I got a Dell Perc6/i Integrated RAID card a few days ago. By using it with CentOS 5.2 64 bits without GUI, I'm looking the way to monitor RAID status. I then, found that I can use MegaCLI from LSI to do the task. (Dell Perc6/i uses LSI Chip)

First, get MegaCLI from LSI website -> MegaCLI 2.00.11 for Linux