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VPS tuning advice

Posted by alanburke on April 19, 2009 at 3:55pm

Hi all,
I'm running a zen Based VPS at blacknight with some, relatively speaking, low traffic sites.

I upgraded one of those sites to Drupal 6 this morning, and now the server seems to have gone haywire.

I'd appreciate any advice as to how to recover the situation.

One of the sites is www.athenryac.com, and judging from the browser, a connection is being made to the server,
and it is is either extremely slow, or just times out.
Even ssh access is very slow.

The server is running Ubuntu 8.4.01
Php 5
with APC installed.
Mysql 5.

Phpinfo, and my.cnf pasted below.

Cacti stats for a Drupal Site

Posted by raintonr on April 22, 2009 at 1:13am

I was thinking about trying to monitor several Drupal metrics using Cacti and went looking for someone who's done it before. Doesn't seem so, but I would have thought monitoring statistics on your site(s) is an essential part of any high performance setup so bring it up here.

Anyhow - found something similar only and added a comment over on a thread about monitoring Drupal:

http://groups.drupal.org/node/20271#comment-74657

Anyone here interested in such an effort and how it might be built?

Multi-master synchronous replication system for MySQL on AWS with Drupal as POC

Posted by Amazon on April 25, 2009 at 3:02pm

At MySQLcon I ran into the guys from Codership. They did a 25 minute presentation on how to do multi-master synchronous replication across many instances of MySQL.

In layman's terms.

If you are running 5 Master MySQL databases behind your giant Drupal site, and one of those servers crashes, you won't lose a transaction, and you won't corrupt your logs and destroy your database.

Boost module issue in drupal

Posted by navaneeth_r on May 4, 2009 at 11:39am

My site is high performance site To improve the performance I have installed the BOOST module in development version.

The node is cleared once the node gets updated/deleted.

My doubt is:

1.The home page nodes not get cleared once the node get updated [I am using panel for home page].

2.Boost cached files are not deleted after x times [ Set in performance ].

Can you suggest me...

Regards,
R.Navaneethakrishnan.

Caching: Modules that make Drupal scale

Posted by mikeytown2 on May 4, 2009 at 8:43pm
Last updated by c-logemann on Mon, 2024-05-20 12:42

There are many ways to improve the performance & scalability of Drupal.

Comparison of a selection of performance and scalability modules:

Note: This is a partial list including only the most popular modules.

Optimizing a Drupal website with lots of modules (80 or more) by splitting it up into multi-sites

Posted by NewZeal on May 4, 2009 at 10:12pm

Hi,

As we all know a Drupal site becomes less efficient the more modules are added to it. I found myself working on a site with 115 modules or more and found in one instance that Ubercart was loading css on every page load, and not only was this contributing to the overheads, it was breaking the site in some forms in IE. While e-commerce forms a small part of the site functions, most of the site does not need it at all, so I looked at the idea of splitting the site into subdomains, each with about 40 modules or less.

Performance gain with Memcached on Windows?

Posted by ducdebreme on May 12, 2009 at 8:49am

I just have tested memcached on Windows/Apache to investigate, if a performance can be expected.
I was very surprised, but it seems that memcached does not perform better than the Drupal built-in DB-Caching mechanism.
I am very curious, if anybody else had different results.

Detailed information follows.

My environment
- Windows XP
- Apache/2.0.61 (Win32)
- PHP Version 5.2.6
- MySQL 5.0.77
- Memcache 1.2.6
All installed on single box.

I have set up two environments with copies of the same DB.

query in a page

Posted by navaneeth_r on May 14, 2009 at 6:24am

How/where to check the number of queries running in a page other than devel module.

Regards
R.Navaneethakrishnan.

High registered-traffic - what setup is best for server, database and software?

Posted by flollo on May 14, 2009 at 11:05am

Hello High Performance-Group,

we are about to move our client-sites from an only-static-CMS to Drupal and worry how our high registered traffic will do and what would be best setup for Drupal, caching, database- and servercluster-setup. Anybody has ideas and/or experience?

Some figures:

Traffic:
PageImpression-peak per hour: 150,000 (42 per sec.)
PageImpression-peak per hour in closed area/registered user: 75,000 (21 per sec.)
Unique visit-peak per hour: 75,000 (21 per sec.)
Active session-peak (open parallel sessions, timeout 15 min.): 1,500

Content:

Memcache query issue

Posted by navaneeth_r on May 15, 2009 at 2:15pm

I am trying to use the memcache.

I am logging the queries after and before enable memcache.

I am using following in _db_query function in database.mysql.inc I am using following code to log the queries.

if($_SERVER['REMOTE_ADDR'] == '192.168.99.180') {
$file = '/var/www/html/example/files/query.txt';
$handle = fopen($file,'a+');
fwrite($handle,$query."\r\n");
fclose($handle);
}

Before enable the memcache file size is 1.09 kb after enable the memcache the log file size is 11.09 kb.

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