vbtechsupport.com

MariaDB 5.5 RPM builds ?

eva2000 — Sat, 12 May 2012 06:13:22 +0000

MariaDB 5.5.23 has been announced as stable release since last month but there isn’t an official MariaDB 5.5 RPM available for download yet. Seems there’s problems that need to be ironed out with the official RPM builds for MariaDB 5.5.23. Update: seems official MariaDB 5.5 RPMs might be coming soon !

I’ve been attempting to build my own MariaDB 5.5 RPMs ever since without any success, until I stumbled upon Shawn Sterling’s MariaDB 5.5 spec file. Merging it with Joshua Butcher’s MariaDB 5.5.23 spec file, I finally managed to build my own MariaDB 5.5.23 RPMs on CentOS 6.2 64bit local test server.

I’m no RPM build expert and this is my first successful RPM build for MariaDB 5.5.23, so going to test it out. Best of all, it seems this MariaDB 5.5 RPM works with mydumper install unlike official MySQL 5.5 server which prevents mydumper from installing properly. I’m a very happy man

Here’s hoping official MariaDB 5.5 RPMs will be available soon.

Red Hat Enterprise 6 based MariaDB 5.5 64bit RPMs

rpm -qa | grep MariaDB
 
MariaDB-Server-server-55-5.5.23-20.0.rhel6.x86_64
MariaDB-Server-shared-55-5.5.23-20.0.rhel6.x86_64
MariaDB-Server-test-55-5.5.23-20.0.rhel6.x86_64
MariaDB-Server-devel-55-5.5.23-20.0.rhel6.x86_64
MariaDB-Server-client-55-5.5.23-20.0.rhel6.x86_64

CentOS 6 based MariaDB 5.5 64bit RPMs

rpm -qa | grep MariaDB
 
MariaDB-shared-55-5.5.23-26.el6.x86_64
MariaDB-devel-55-5.5.23-26.el6.x86_64
MariaDB-client-55-5.5.23-26.el6.x86_64
MariaDB-server-55-5.5.23-26.el6.x86_64
MariaDB-test-55-5.5.23-26.el6.x86_64

mysqladmin ver        
mysqladmin  Ver 9.0 Distrib 5.5.23-MariaDB, for Linux on x86_64
Copyright 2000-2008 MySQL AB, 2008 Sun Microsystems, Inc,
2009 Monty Program Ab
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL license
 
Server version          5.5.23-MariaDB-55
Protocol version        10
Connection              Localhost via UNIX socket
UNIX socket             /var/lib/mysql/mysql.sock
Uptime:                 26 sec
 
Threads: 1  Questions: 1  Slow queries: 0  Opens: 33  
Flush tables: 1  Open tables: 26  Queries per second avg: 0.038

mysql
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 2
Server version: 5.5.23-MariaDB-55 MariaDB Server (GPL), Release 20.0
 
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL v2 license
 
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
 
MariaDB [(none)]> show plugins;
+--------------------------------+----------+--------------------+---------+---------+
| Name                           | Status   | Type               | Library | License |
+--------------------------------+----------+--------------------+---------+---------+
| binlog                         | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| mysql_native_password          | ACTIVE   | AUTHENTICATION     | NULL    | GPL     |
| mysql_old_password             | ACTIVE   | AUTHENTICATION     | NULL    | GPL     |
| CSV                            | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| MRG_MYISAM                     | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| MyISAM                         | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| MEMORY                         | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| Aria                           | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| FEDERATED                      | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| InnoDB                         | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| INNODB_RSEG                    | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_TRX                     | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_LOCKS                   | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_LOCK_WAITS              | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_CMP                     | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_CMP_RESET               | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_CMPMEM                  | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_CMPMEM_RESET            | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_TABLES              | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_TABLESTATS          | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_INDEXES             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_COLUMNS             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_FIELDS              | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_FOREIGN             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_FOREIGN_COLS        | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_STATS               | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_TABLE_STATS             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_INDEX_STATS             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_BUFFER_POOL_PAGES       | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_BUFFER_POOL_PAGES_INDEX | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_BUFFER_POOL_PAGES_BLOB  | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| XTRADB_ADMIN_COMMAND           | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| ARCHIVE                        | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| BLACKHOLE                      | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| PERFORMANCE_SCHEMA             | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| FEEDBACK                       | DISABLED | INFORMATION SCHEMA | NULL    | GPL     |
| partition                      | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
+--------------------------------+----------+--------------------+---------+---------+

mydumper multi-threaded MySQL backup tool successfully installs on MariaDB 5.5 RPM !

-- ------------------------------------------------
-- MYSQL_CONFIG = /usr/bin/mysql_config
-- CMAKE_INSTALL_PREFIX = /usr/local
-- BUILD_DOCS = ON
-- RUN_CPPCHECK = OFF
-- Change a values with: cmake -D<Variable>=<Value>
-- ------------------------------------------------
-- 
-- Configuring done
-- Generating done
-- Build files have been written to: /usr/local/src/mydumper-0.5.1
Scanning dependencies of target mydumper
[ 20%] Building C object CMakeFiles/mydumper.dir/mydumper.c.o
[ 40%] Building C object CMakeFiles/mydumper.dir/binlog.c.o
[ 60%] Building C object CMakeFiles/mydumper.dir/server_detect.c.o
[ 80%] Building C object CMakeFiles/mydumper.dir/g_unix_signal.c.o
Linking C executable mydumper
[ 80%] Built target mydumper
Scanning dependencies of target myloader
[100%] Building C object CMakeFiles/myloader.dir/myloader.c.o
Linking C executable myloader
[100%] Built target myloader
[ 80%] Built target mydumper
[100%] Built target myloader
Install the project...
-- Install configuration: ""
-- Installing: /usr/local/bin/mydumper
-- Installing: /usr/local/bin/myloader

mydumper --help
Usage:
  mydumper [OPTION...] multi-threaded MySQL dumping
 
Help Options:
  -?, --help                  Show help options
 
Application Options:
  -B, --database              Database to dump
  -T, --tables-list           Comma delimited table list to dump (does not exclude regex option)
  -o, --outputdir             Directory to output files to
  -s, --statement-size        Attempted size of INSERT statement in bytes, default 1000000
  -r, --rows                  Try to split tables into chunks of this many rows
  -c, --compress              Compress output files
  -e, --build-empty-files     Build dump files even if no data available from table
  -x, --regex                 Regular expression for 'db.table' matching
  -i, --ignore-engines        Comma delimited list of storage engines to ignore
  -m, --no-schemas            Do not dump table schemas with the data
  -k, --no-locks              Do not execute the temporary shared read lock.  WARNING: This will cause inconsistent backups
  -l, --long-query-guard      Set long query timer in seconds, default 60
  --kill-long-queries         Kill long running queries (instead of aborting)
  -b, --binlogs               Get a snapshot of the binary logs as well as dump data
  -D, --daemon                Enable daemon mode
  -I, --snapshot-interval     Interval between each dump snapshot (in minutes), requires --daemon, default 60
  -L, --logfile               Log file name to use, by default stdout is used
  -h, --host                  The host to connect to
  -u, --user                  Username with privileges to run the dump
  -p, --password              User password
  -P, --port                  TCP/IP port to connect to
  -S, --socket                UNIX domain socket file to use for connection
  -t, --threads               Number of threads to use, default 4
  -C, --compress-protocol     Use compression on the MySQL connection
  -V, --version               Show the program version and exit
  -v, --verbose               Verbosity of output, 0 = silent, 1 = errors, 2 = warnings, 3 = info, default 2

vBulletin 4.1.12 PL1 released with security fix patches for vB 4.1.2 to 4.1.12

eva2000 — Thu, 26 Apr 2012 02:00:41 +0000

vBulletin 4.1.12 was released recently only to be followed up with vBulletin 4.1.12 PL1 security fix patch release. A separate patch release was also issued for vBulletin versions 4.1.2 to 4.1.11. There’s also a security patch fix released for vBulletin 3.x MAPI Plugin 1.4.3.

Notes for vB 4.1.12

vBulletin 4.1.12 is a maintenance release focused on improving performance and stablity. In addition, a no-cost solution for mobile smartphone applications has been added to vBulletin 4 Suite and Forum through our integration with Forum Runner, a leading mobile forum solutions provider. Updates to http://members.vbulletin.com allow you to easily manage your Forum Runner product directly from your vBulletin.com Members Area.

The release contains:

8 user created hook requests, improvement requests, and feature requests.
28 issue fixes related to the CMS.
19 issue fixes with a severity of Major or higher.
14 issue fixes for MAPI and Mobile Style.
9 issue fixes related to Styling and stylevars.
11 issue fixes related to performance and code optimization.

Of particular note:

A seamless integration with Forum Runner.
VBIV-14056 - Serve jQuery from Google CDN in vBulletin 4 MS
VBIV-14471 - Unable to Configure Widgets: Configuration Popup Doesn’t Load
VBIV-14443 - Customized CMS and Blog Stylevars Reset in Upgrade
VBIV-14304 - Can’t post comments on Articles using the mobile app.
VBIV-14214 - CKeditor initial lag and lost characters
VBIV-13899 - Fatal error when using Preview Changes while editing a post with attachments
VBIV-5766 - Too Much Memory Used To Generate online.php
VBIV-14642 - Can’t see self in Who’s Online page if set to invisible
VBIV-14614 - Incorrect Who’s Online pagination when showing only guests
VBIV-14622 - Wrong avatar images and links in recent activity widget
VBIV-14610 - Startup error while upgrading to a patch level version – includes/md5_sums_vbulletin.php version mismatch
VBIV-14599 - Update some more areas to use vbeach instead of bit templates

Additional Changes since the 4.1.12 BETA 2 Release:

VBIV-14642 - Can’t see self in Who’s Online page if set to invisible

vBulletin 4.1.12 contains a total of 100 bug fixes, hook requests, improvement requests, and feature requests. A full list of these changes can be found - HERE.

Read Paul’s blog post on the changes in 4.1.12 - HERE.

WordPress 3.3.2 & 3.4 beta 3 released

eva2000 — Wed, 25 Apr 2012 08:28:44 +0000

WordPress has announced the released of their 3.3.2 stable and 3.4 beta 3 versions. Full details here.

WordPress 3.3.2 is available now and is a security update for all previous versions.

Three external libraries included in WordPress received security updates:

Plupload (version 1.5.4), which WordPress uses for uploading media.
SWFUpload, which WordPress previously used for uploading media, and may still be in use by plugins.
SWFObject, which WordPress previously used to embed Flash content, and may still be in use by plugins and themes.

Thanks to Neal Poole and Nathan Partlan for responsibly disclosing the bugs in Plupload and SWFUpload, and Szymon Gruszecki for a separate bug in SWFUpload.

WordPress 3.3.2 also addresses:

Limited privilege escalation where a site administrator could deactivate network-wide plugins when running a WordPress network under particular circumstances, disclosed by Jon Cave of our WordPress core security team, and Adam Backstrom.
Cross-site scripting vulnerability when making URLs clickable, by Jon Cave.
Cross-site scripting vulnerabilities in redirects after posting comments in older browsers, and when filtering URLs. Thanks to Mauro Gentile for responsibly disclosing these issues to the security team.

These issues were fixed by the WordPress core security team. Five other bugs were also fixed in version 3.3.2. Consult thechange log for more details.

Download WordPress 3.3.2 or update now from the Dashboard → Updates menu in your site’s admin area.

Twitter releasing own MySQL internal development branch on GitHub

eva2000 — Wed, 25 Apr 2012 04:21:48 +0000

Jeremy Cole announced that Twitter has published it’s own MySQL internal development branch to GitHub.

MySQL at Twitter

MySQL is the persistent storage technology behind most Twitter data: the interest graph, timelines, user data and the Tweets themselves. Due to our scale, we push MySQL a lot further than most companies. Of course, MySQL is open source software, so we have the ability to change it to suit our needs. Since we believe in sharing knowledge and that open source software facilitates innovation, we have decided to open source our MySQL workon GitHub under the BSD New license. The objectives of our work thus far has primarily been to improve the predictability of our services and make our lives easier. Some of the work we’ve done includes:

Add additional status variables, particularly from the internals of InnoDB. This allows us to monitor our systems more effectively and understand their behavior better when handling production workloads.
Optimize memory allocation on large NUMA systems: Allocate InnoDB’s buffer pool fully on startup, fail fast if memory is not available, ensure performance over time even when server is under memory pressure.
Reduce unnecessary work through improved server-side statement timeout support. This allows the server to proactively cancel queries that run longer than a millisecond-granularity timeout.
Export and restore InnoDB buffer pool in using a safe and lightweight method. This enables us to build tools to support rolling restarts of our services with minimal pain.
Optimize MySQL for SSD-based machines, including page-flushing behavior and reduction in writes to disk to improve lifespan.

Google Drive coming soon – free 5GB storage

eva2000 — Wed, 25 Apr 2012 00:51:17 +0000

Google Drive is coming soon it seems. Announced on Google Blog, you’ll have 5GB free online storage space to upload, share and collaborate videos, photos, files and documents with others. Videos and photos will be instantly available to your Google+ accounts if linked apparently. Eventually, you’ll be able to sync PC, Mac, Linux and both Android and Apple iOS devices with Google Drive.

Google Drive storage pricing link was hidden at the bottom of the page for folks needing more than 5GB storage space. Seems it’s also tied in with Picasa and Gmail storage so when you purchased additional Google Drive storage, it is shared across Google Drive and Picasa and your Gmail storage automatically increases from 10GB free to 25GB free!

Google Drive PC & Mac syncing app

Google Drive PC & Mac apps allow you to choose what to sync on your computer with Google Drive. Currently, it’s an invitation only service, so you need to receive an invite to be able to download and install it. It’s explained here.

The Google Drive for your Mac/PC application puts you in control – you can keep or change the default syncing settings. Decide whether you want to sync Google Docs, all of My Drive or individual folders, and items in Shared with me.

Google Drive Security

Google Drive security is explained here.

The security of your data in Google Drive is a top priority. In order for a Google Drive app to access files in your Google Drive, you must install and authorize the app.

When you choose to open files with Google Drive apps, these apps may request access to all or individual files in your Google Drive. These permissions will be outlined when you choose to authorize the app.

Storage plan pricing

Store up to 5 GB in Google Drive, 1 GB in Picasa, and 10 GB in Gmail for free and pay for additional storage as your accounts grow. Here’s how it works:

Tap into your free storage as soon as you start using Google Drive, Picasa or Gmail.
Purchase additional storage that can be shared across Google Drive and Picasa (free storage doesn’t transfer across products). When you purchase additional storage, your Gmail storage limit will automatically be increased to 25 GB.

Google storage plans

Choose from the following monthly Google storage plans to be used with Google Drive and Picasa. When you purchase one of these plans, your Gmail storage limit will automatically increase to 25 GB. Yearly plans aren’t currently available.

Storage	Monthly Rate
25 GB	$2.49
100 GB	$4.99
200 GB	$9.99
400 GB	$19.99
1 TB	$49.99
2 TB	$99.99
4 TB	$199.99
8 TB	$399.99
16 TB	$799.99

Looks like Google Drive Android app has merged with and replaced Google Doc app on Google Play Store as well.

Google Drive online media coverage:

More online media coverage for Google Drive

MariaDB 5.5.23 GA Stable Released

eva2000 — Wed, 25 Apr 2012 00:16:16 +0000

MariaDB officially has released it’s MariaDB 5.5.23 GA MySQL server about 2 weeks ago. Still waiting on an RPM binary version for download while they work out the buildbot/rpm building issues. But you can double the source tarball and Debian repository versions.

Includes MariaDB 5.3.6

MariaDB 5.5.23 includes MariaDB 5.3.6, which, among other things, fixes a bug that under certain rare circumstances allowed a user to connect with an invalid password. This is a serious security issue. We recommend upgrading from older versions of MariaDB 5.5 as soon as possible. See the MariaDB 5.3.6Release Notes and Changelog for more information.

Includes MySQL 5.5.23

This version of MariaDB includes MySQL 5.5.23. See Changes in MySQL 5.5.23 for what changed between this and previous MySQL versions.

cPanel v11.32 + MySQL 5.5, MariaDB 5.5.22 RC, Percona XtraBackup v1.6.6 & v2.0 GA

eva2000 — Thu, 05 Apr 2012 08:58:04 +0000

A few updates to report.

cPanel / WHM officially released v11.32 branch with official MySQL 5.5.x support.
MariaDB 5.5.22 RC MySQL server.
Percona XtraBackup v1.6.6 and v2.0 GA were released.

cPanel / WHM v11.32 release

Announcement link
Before you upgrade, be sure to read the check list and notes for MySQL 5.5.x upgrades.

cPanel & WHM version 11.32, which released today to the RELEASE tier, offers numerous updates, including enhancements to mail functionality and login screens. It also officially supports DKIM and includes the Logaholic web analytics application. This latest release features 202 bug fixes and case implementations since going to the EDGE tier on February 15, 2012.

MariaDB 5.5.22 RC release

Includes MySQL 5.5.22

This version of MariaDB includes MySQL 5.5.22. See Changes in MySQL 5.5.22 for what changed between this and previous MySQL versions.

Dynamic replication variables

The variables replicate_do_*, replicate_ignore_*, and replicate_wild_* have been made dynamic, so they can be changed without requiring a server restart. See Dynamic Replication Variables for more information.

Percona XtraBackup v1.66 & v2.0 GA release

mysqlmymonlite.sh official site mysqlmymon.com online

eva2000 — Wed, 04 Apr 2012 01:38:55 +0000

Since June, 2011 last year, vBulletin licensed customers have benefited from using mysqlmymonlite.sh script to gather server’s apache, nginx, litespeed, mysql and other usage stats for their vBulletin forum server optimisation requests over on the official vBulletin.com support private Server Configuration forums. Today, I have setup mysqlmymonlite.sh script on it’s own domain name available for download at mysqlmymon.com.

It has always been my plan to make mysqlmymonlite.sh available to a greater online audience as everyday on various forums I see folks asking for help when their servers are slow or when they want to upgrade their server hardware. I see folks continuously bouncing back and forth numerous replies all to just understand the server owner’s existing server usage stats, server software versions and configurations. I’ve been doing the exact same time consuming thing for the past 11+ yrs with vBulletin customers! There has to be a faster way to do this, hence I wrote mysqlmymonlite.sh for this purpose. It takes less <12 seconds to gather all the required server stats and configuration info!

So visit mysqlmymon.com and download and check out mysqlmymonlite.sh. If you like the script, don’t forget to Google+ the page

MySQL Server releases: MariaDB 5.5.21 Beta & Percona Server 5.5.21-25.0

eva2000 — Tue, 20 Mar 2012 10:21:20 +0000

Both MariaDB 5.5.21 Beta & Percona Server 5.5.21-25.0 MySQL servers have been released.

MariaDB 5.5.21 Beta

MariaDB 5.5.21 beta is a merge of MariaDB 5.3 and MySQL 5.5 with some limited additional bug fixes. In this release we have added some extra notable features including an improved thread pool, an updated SphinxSE storage engine for fulltext search, and the ability to selectively skip replication of binlog events. Extra features planned for MariaDB 5.5 will be pushed into subsequent releases.

As with any beta release, MariaDB 5.5.21-beta should not be used on production systems.

The Release Notes page has some notes on the release. There is also a Changelog available for those who are interested.

Percona Server 5.5.21-25.0

Based on MySQL 5.5.21, including all the bug fixes in it, Percona Server 5.5.21-25.0 is now the current stable release in the 5.5 series. All of Percona‘s software is open-source and free, all the details of the release can be found in the 5.5.21-25.0 milestone at Launchpad.

Full release notes are available in the Percona Server documentation.

Installed MariaDB 5.5.21 Beta on CentOS 6.2 64bit as a second instance side by side with MariaDB 5.2.10

mysqladmin ver
mysqladmin  Ver 9.0 Distrib 5.2.10-MariaDB, for unknown-linux-gnu on x86_64
Copyright 2000-2008 MySQL AB, 2008 Sun Microsystems, Inc,
2009 Monty Program Ab
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL license
 
Server version          5.2.10-MariaDB-mariadb107
Protocol version        10
Connection              Localhost via UNIX socket
UNIX socket             /var/lib/mysql/mysql.sock
Uptime:                 6 sec
 
Threads: 1  Questions: 1  Slow queries: 0  
Opens: 15  Flush tables: 1  Open tables: 8  Queries per second avg: 0.166

/var/lib/mariadb5521b/bin/mysqladmin -S /tmp/mysql.sock -P 3309 ver
/var/lib/mariadb5521b/bin/mysqladmin  Ver 9.0 Distrib 5.5.21-MariaDB, for Linux on x86_64
Copyright 2000-2008 MySQL AB, 2008 Sun Microsystems, Inc,
2009 Monty Program Ab
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL license
 
Server version          5.5.21-MariaDB
Protocol version        10
Connection              Localhost via UNIX socket
UNIX socket             /tmp/mysql.sock
Uptime:                 3 min 27 sec
 
Threads: 1  Questions: 3  Slow queries: 0  
Opens: 33  Flush tables: 1  Open tables: 26  Queries per second avg: 0.014

/var/lib/mariadb5521b/bin/mysql -e "show plugins;"
+--------------------------------+----------+--------------------+---------+---------+
| Name                           | Status   | Type               | Library | License |
+--------------------------------+----------+--------------------+---------+---------+
| binlog                         | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| mysql_native_password          | ACTIVE   | AUTHENTICATION     | NULL    | GPL     |
| mysql_old_password             | ACTIVE   | AUTHENTICATION     | NULL    | GPL     |
| MyISAM                         | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| CSV                            | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| MEMORY                         | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| MRG_MYISAM                     | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| InnoDB                         | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| INNODB_RSEG                    | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_TRX                     | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_LOCKS                   | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_LOCK_WAITS              | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_CMP                     | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_CMP_RESET               | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_CMPMEM                  | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_CMPMEM_RESET            | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_TABLES              | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_TABLESTATS          | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_INDEXES             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_COLUMNS             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_FIELDS              | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_FOREIGN             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_FOREIGN_COLS        | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_STATS               | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_TABLE_STATS             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_INDEX_STATS             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_BUFFER_POOL_PAGES       | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_BUFFER_POOL_PAGES_INDEX | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_BUFFER_POOL_PAGES_BLOB  | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| XTRADB_ADMIN_COMMAND           | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| Aria                           | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| FEDERATED                      | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| ARCHIVE                        | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| PERFORMANCE_SCHEMA             | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| BLACKHOLE                      | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| FEEDBACK                       | DISABLED | INFORMATION SCHEMA | NULL    | GPL     |
| partition                      | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
+--------------------------------+----------+--------------------+---------+---------+

Installed Percona 5.5.21 Rel 25.0 on CentOS 6.2 64bit as a second instance side by side with MariaDB 5.2.10 and MariaDB 5.5.21 Beta

/var/lib/percona5521rel25/bin/mysqladmin -S /tmp/perconamysql.sock -P 3309 ver
/var/lib/percona5521rel25/bin/mysqladmin  Ver 8.42 Distrib 5.5.21, for Linux on x86_64
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
 
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
 
Server version          5.5.21-rel25.0
Protocol version        10
Connection              Localhost via UNIX socket
UNIX socket             /tmp/perconamysql.sock
Uptime:                 9 sec
 
Threads: 1  Questions: 1  Slow queries: 0  
Opens: 33  Flush tables: 1  Open tables: 26  Queries per second avg: 0.111

/var/lib/percona5521rel25/bin/mysql -S /tmp/perconamysql.sock -P 3309 -e "show plugins;"
+--------------------------------+----------+--------------------+---------+---------+
| Name                           | Status   | Type               | Library | License |
+--------------------------------+----------+--------------------+---------+---------+
| binlog                         | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| mysql_native_password          | ACTIVE   | AUTHENTICATION     | NULL    | GPL     |
| mysql_old_password             | ACTIVE   | AUTHENTICATION     | NULL    | GPL     |
| MEMORY                         | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| CSV                            | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| MyISAM                         | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| MRG_MYISAM                     | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| InnoDB                         | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| INNODB_RSEG                    | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_TRX                     | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_LOCKS                   | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_LOCK_WAITS              | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_CMP                     | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_CMP_RESET               | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_CMPMEM                  | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_CMPMEM_RESET            | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_TABLES              | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_TABLESTATS          | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_INDEXES             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_COLUMNS             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_FIELDS              | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_FOREIGN             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_FOREIGN_COLS        | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_STATS               | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_TABLE_STATS             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_INDEX_STATS             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_BUFFER_POOL_PAGES       | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_BUFFER_POOL_PAGES_INDEX | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_BUFFER_POOL_PAGES_BLOB  | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| XTRADB_ADMIN_COMMAND           | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| FEDERATED                      | DISABLED | STORAGE ENGINE     | NULL    | GPL     |
| BLACKHOLE                      | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| PERFORMANCE_SCHEMA             | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| ARCHIVE                        | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| partition                      | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
+--------------------------------+----------+--------------------+---------+---------+

Web Tech Articles Recap

eva2000 — Sun, 18 Mar 2012 17:09:10 +0000

In the last 12 months, I have written quite a few articles which I myself keep referencing back to or linking back to for other folks. So thought I’d revisit them with an all in one listing.

Hope you folks, find some of these articles useful. If you do, don’t forget to hit the social bookmark icons / Like etc

vBulletin 4.1.11 released – improved CMS performance, Premium Mobile Style and CDN support

eva2000 — Thu, 01 Mar 2012 18:23:29 +0000

vBulletin 4.1.11 is a maintenance release focused on improving performance, resolving issues in the CMS, Premium Mobile Style, and issues with high user impact.

The release contains:

11 user created hook requests, improvement requests, and feature requests.
37 issue fixes related to the CMS.
31 issue fixes with a severity of Major or higher.
15 issue fixes for MAPI and Mobile Style.
The Premium Mobile Style has been merged into 4.1.11 as part of the standard Mobile Style. A vBulletin Mobile Suite license is no longer required in order to download and install the Premium Mobile Style on forums running vBulletin 4.0-4.1.10. All future vBulletin 4 releases, including vBulletin 4.1.11, will include moderator and administration functionality in the standard Mobile Style.
Master Mobile Style to support Mobile Style customization and streamline the upgrade process.
CMS Template Caching to increase performance.
CDN Support to increase performance.

Of particular note:

VBIV-14406 Merge Premium Mobile Style into vB4 Core.
VBIV-12613 Get the mobile style into a proper master style
VBIV-13151 Mobile Style Install Script
VBIV-13866 If Blog Style Override is set Blog Mobile Style doesn’t work
VBIV-11328 Mobile style doesn’t work while Allow Users to Change Style is set to No
VBIV-13851 Android/Blackberry browser won’t hold user selected style
VBIV-13328 Detect Windows 7 Phone as mobile_browser_advanced

VBIV-14263 Template Caching in the CMS
VBIV-952 CMS – post promoted to article splits discussion
VBIV-8861 Multiple Threads created for VBCMS Articles
VBIV-2989 General Search Widget: Caching not working
VBIV-9497 CMS previewimage should not be stored as full URL
VBIV-7869 Guests can only rate CMS articles when the permission “Edit Others’ Content” is active
VBIV-6775 Change the way Meta Description field is automatically filled in CMS articles

VBIV-14224 vBulletin should temporarily disable Facebook Connect if Facebook is unreachable
VBIV-14055 Serve jQuery from Google CDN in vBulletin 4 Core.
VBIV-14014 Serve YUI from Google CDN
VBIV-14079 Can’t upload images with the ‘Insert Image’ popup on Chrome/OSX
VBIV-14223 External RSS feeds in Arabic are no longer displaying correctly in 4.1.10 when they used to work in 4.1.8

Additional Changes since the 4.1.11 BETA 1 Release:

VBIV-14214 (REVERT) CKeditor initial lag and lost characters
VBIV-14389 Typo in a AdminCP setting
VBIV-14376 More encoding issues
VBIV-14389 Correct phrase version number
VBIV-14406 Merge Premium Mobile Style into vB4 Core.

4.1.11 contains a total of 166 bug fixes, hook requests, improvement requests, and feature requests. A full list of these changes can be found HERE.

MariaDB 5.3.5 MySQL server stable release

eva2000 — Wed, 29 Feb 2012 21:55:47 +0000

MariaDB 5.3.5 stable MySQL server has been announced.

Compared to previous releases in the MariaDB 5.3 series, MariaDB 5.3.5 is primarily a bug-fix release with a focus on stability, performance, and usability. It is first stable or GA release of the 5.3 series and the fifth overall release in the series.

Apart from fixing bugs found in the previous 5.3.x beta and rc releases, MariaDB 5.3.5 introduces counters for the Multi-Range Read and Index Condition Pushdown optimizations.

For a list of every change made in MariaDB 5.3.5, with links to detailed information on each push, see the MariaDB 5.3.5 Changelog. It is worth noting that MariaDB 5.3 is built on MariaDB 5.2, MariaDB 5.1, and MySQL 5.1.

About MariaDB 5.3

The MariaDB 5.3 series introduces many new features, includes MariaDB 5.2, and is based on MariaDB 5.1 & MySQL 5.1. Some highlights of new features in MariaDB 5.3 include:

subquery optimizations that finally make subqueries usable
many optimizer changes, including Classic Hash Join, Batched Key Access, a new implementation of Multi-Range-Read optimizations as well as Index Condition Pushdown
NoSQL-style interfaces via the HandlerSocket plugin as well as dynamic columns
group commit in XtraDB when the binary log is enabled
Microsoft Windows performance improvements

These are just some of the highlights, and for a more complete list of changes, please see the What is MariaDB 5.3 page.

Looking over the change log (Revision #3424), one interesting item might relate to why MariaDB 5.3.4 RC performed poorly in the Sybench benchmark comparison with MySQL 5.5.20.

Fix for Bug#13430436 PERFORMANCE DEGRADATION IN SYSBENCH ON INNODB DUE TO ICP

When running sysbench on InnoDB there is a performance degradation due to index condition pushdown (ICP). Several of the queries in sysbench have a WHERE condition that the optimizer uses for executing these queries as range scans. The upper and lower limit of the range scan will ensure that the WHERE condition is fulfilled. Still, the WHERE condition is part of the queries’ condition and if ICP is enabled the condition will be pushed down to InnoDB as an index condition.
Due to the range scan’s upper and lower limits ensure that the WHERE condition is fulfilled, the pushed index condition will not filter out any records. As a result the use of ICP for these queries results in a performance overhead for sysbench. This overhead comes from using resources for determining the part of the condition that can be pushed down to InnoDB and overhead in InnoDB for executing the pushed index condition.
With the default configuration for sysbench the range scans will use the primary key. This is a clustered index in InnoDB. Using ICP on a clustered index provides the lowest performance benefit since the entire record is part of the clustered index and in InnoDB it has the highest relative overhead for executing the pushed index condition.
The fix for removing the overhead ICP introduces when running sysbench is to disable use of ICP when the index used by the query is a clustered index.

Switching ISPs – changed to Telstra Ultimate Cable couldn’t wait for NBN to roll out

eva2000 — Tue, 28 Feb 2012 15:21:15 +0000

Last Thursday I changed ISPs from Netspace ADSL2+ to new Telstra Ultimate Cable bundle plan and the difference in speed is amazing. I went from approximate download/upload speeds of 15Mbps/0.8Mbps to 118Mbps/2.4Mbps with 5-10ms pings within Australia and best of all it’s bundled with my home phone line rental so I’m saving AUD$45/month from the switch !

I couldn’t wait for Australian National Broadboad Network to roll out in my area, it could be years before NBN comes to my area if the NBN roll out map is any indicator. The NBN Co even plotted out their roll out map on Google Maps. NBN will allow for up to 100Mbps download and up to 40Mbps upload speeds. So much higher upload speeds than my current Telstra Ultimate Cable plan.

I’d thought I’d share an interesting experience I had after the switch. Using Speedtest.net to check my Telstra Ultimate Cable speeds, I noticed my main work PC had very slow 500+ ms ping times but my other PCs had 5-10ms ping times. I google researched and it appears it’s to do with Google Chrome browser and some anti-virus software which have web/http protection features. My main work PC uses Chrome 17.0 browser but other PCs used Firefox 10.x which didn’t have slow ping times.

For me the solution was to upgrade my ESET Internet Security 4.0.x software to ESET Smart Security 5.0.x. Once I upgraded Speedtest.net reported 5-7ms pings within Google Chrome 17.0 web browser on my main work PC.

Other reports of Chrome web browser and slow ping times

Before upgrading ESET Internet Security 4.0.x software with Google Chrome 17.0 web browser:

After upgrading to ESET Smart Security 5.0.x with Google Chrome 17.0 web browser:

Apache v2.4.1 ApacheBench v2.3 revision 1178079 benchmark tool faster than Apache v2.2′s revision ?

eva2000 — Sun, 26 Feb 2012 20:21:13 +0000

Started Apache v2.4.1 benchmark tests on CentOS 6.2 64bit guest Virtualbox server mainly with using Siege benchmark and ApacheBench benchmark tools. But noticed something interesting in that if I use ApacheBench v2.3 revision 1178079 included with Apache v2.4.1 to test against both Apache v2.2.22 and Apache v2.4.1 webservers, that it’s consistently and repeatedly ~12% faster for both Apache v2.2.22 and v2.4.1 web servers than if I use the ApacheBench v2.3 revision 655654 benchmark version that is included with Apache v2.2.22 !

So the newer version of ApacheBench v2.3 revision 1178079 included in Apache v2.4.1 seems to be faster which means you need to pay attention to which ApacheBench version and revision you use to benchmark and measure against for Apache v2.2 vs Apache v2.4.1 tests as well as for Nginx and Litespeed web server benchmark comparisons. It’s fair to say, to do proper comparison you would need to use the same ApacheBench version and revision.

ApacheBench v2.3 revision comparisons

I installed Apache v2.2.22 via CentOS 64bit YUM repo (/etc prefix) and compiled Apache v2.4.1 on same server (/etc2 prefix) so that ApacheBench benchmark tools would be located at /usr/bin/ab (Apache v2.2.22 version) and /etc2/bin/ab (Apache v2.4.1 version).

Below is ApacheBench v2.3 revision comparison results against just Apache v2.4.1 web server:

With ApacheBench v2.3 revision 655654 benchmark tool included with Apache v2.2.22

static html file

/usr/bin/ab -k -c 300 -n 5000 192.168.56.120:82/phpinfo.html
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
 
Server Software:        Apache/2.4.1
Server Hostname:        192.168.56.120
Server Port:            82
 
Document Path:          /phpinfo.html
Document Length:        57947 bytes
 
Concurrency Level:      300
Time taken for tests:   1.205 seconds
Complete requests:      5000
Failed requests:        22
   (Connect: 0, Receive: 0, Length: 22, Exceptions: 0)
Write errors:           0
Keep-Alive requests:    4978
Total transferred:      298830177 bytes
HTML transferred:       297101289 bytes
Requests per second:    4150.74 [#/sec] (mean)
Time per request:       72.276 [ms] (mean)
Time per request:       0.241 [ms] (mean, across all concurrent requests)
Transfer rate:          242258.95 [Kbytes/sec] received
 
Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    2   8.0      0      43
Processing:     1   66  32.0     60     947
Waiting:        0   16  31.8     11     891
Total:          1   68  36.9     60     951
 
Percentage of the requests served within a certain time (ms)
  50%     60
  66%     61
  75%     62
  80%     64
  90%     74
  95%     83
  98%    189
  99%    225
 100%    951 (longest request)

With ApacheBench v2.3 revision 1178079 benchmark tool included with Apache v2.4.1

static html file

/etc2/bin/ab -k -c 300 -n 5000 192.168.56.120:82/phpinfo.html
This is ApacheBench, Version 2.3 <$Revision: 1178079 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
 
Server Software:        Apache/2.4.1
Server Hostname:        192.168.56.120
Server Port:            82
 
Document Path:          /phpinfo.html
Document Length:        57947 bytes
 
Concurrency Level:      300
Time taken for tests:   1.084 seconds
Complete requests:      5000
Failed requests:        0
Write errors:           0
Keep-Alive requests:    5000
Total transferred:      291380300 bytes
HTML transferred:       289735000 bytes
Requests per second:    4612.75 [#/sec] (mean)
Time per request:       65.037 [ms] (mean)
Time per request:       0.217 [ms] (mean, across all concurrent requests)
Transfer rate:          262512.62 [Kbytes/sec] received
 
Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    2   8.8      0      50
Processing:    19   62   7.7     63     121
Waiting:        1   23  11.2     24      71
Total:         19   64  12.4     63     171
 
Percentage of the requests served within a certain time (ms)
  50%     63
  66%     64
  75%     65
  80%     66
  90%     67
  95%     93
  98%    106
  99%    109
 100%    171 (longest request)

Repeating the tests over and over, result in the same differences. Basically, ApacheBench v2.3 revision 1178079 included with Apache v2.4.1 is faster than ApacheBench v2.3 revision 655654 included with Apache v2.2.22. Folks have you experienced this as well ? If so, feel free to reply and comment below to this article with your experiences.

MariaDB 5.5.20 Alpha MySQL Server Released

eva2000 — Sun, 26 Feb 2012 19:39:45 +0000

MariaDB 5.5.20 Alpha MySQL Server has been released based on MySQL 5.5 with merging of MariaDB 5.3 with MySQL 5.5. Full MariaDB 5.5.20 Change Log. Full description of MariaDB 5.5 here.

MariaDB 5.5.20 is an Alpha release. MariaDB 5.5.20-alpha is a merge of MariaDB 5.3 and MySQL 5.5 with some limited additional bug fixes. This is the first 5.5-based release, and we are releasing it now, intentionally without any extra features, to get it into the hands of any who might want to test it. Extra features planned for MariaDB 5.5 will be pushed into subsequent releases. Do not use alpha releases on production systems.

MariaDB 5.3.4 vs MySQL 5.5.20 – 5.1 XtraDB Engine vs InnoDB Plugin

eva2000 — Wed, 22 Feb 2012 14:07:03 +0000

Percona folks released some surprising Sysbench MySQL InnoDB Engine benchmarks comparing MariaDB 5.3.4 RC (which is based on Percona 5.1 XtraDB InnoDB engine) with MySQL 5.5.20 (InnoDB plugin). The results showed MySQL 5.5.20 was out performing MariaDB 5.3.4 RC for simple Sysbench OLTP InnoDB benchmark tests.

MariaDB folks then did their own MariaDB 5.3.4 RC vs MySQL 5.5.20 (and Percona 5.1.61 and 5.5.20) tests which confirm the same results in that MariaDB 5.3.4 RC which is based on same Percona 5.1.x XtraDB Engine was performing behind both MySQL 5.5.20 (InnoDB plugin based) and Percona 5.5.20 which is based on MySQL 5.5 code. Even though MariaDB 5.3.4 RC and Pecona 5.1.x was using same XtraDB engine, MariaDB 5.3.4 RC was performing slightly worse. MariaDB 5.2.x was missing from comparison so not sure how MariaDB 5.2 would fair although it is like MariaDB 5.3.4 RC based on Percona 5.1 XtraDB engine.

MariaDB folks are investigating this, but they also will build future MariaDB 5.3 versions against the InnoDB plugin and their AskMonty KB already has a how to article for building MariaDB 5.3 against the vanilla InnoDB plugin.

Update: Looks like MariaDB 5.3.5 stable release might have fixed the problem ?

Apache httpd 2.4.1 Officially Released

eva2000 — Wed, 22 Feb 2012 04:48:12 +0000

Apache has announced official release of Apache v2.4.1. Full change log at http://www.apache.org/dist/httpd/CHANGES_2.4 and What’s new at http://httpd.apache.org/docs/trunk/new_features_2_4.html

The Apache HTTP Server Project is pleased to announce the release of version 2.4.1 of the Apache HTTP Server (“Apache” and “httpd”). This version of Apache is our first GA release of the new generation 2.4.x branch of Apache HTTPD.
This version of httpd is a major release of the 2.4 stable branch, and represents the best available version of Apache HTTP Server. New features include Loadable MPMs, major improvements to OSCP support, mod_lua, Dynamic Reverse Proxy configuration, Improved Authentication/Authorization, FastCGI Proxy, New Expression Parser, and a Small Object Caching API.

According to ServerWatch, folks at Apache claim Apache v2.4 is as fast if not faster than Nginx ! Wonder how it stacks up to Litespeed web server. Definitely, will be testing and benchmarking Apache v2.4 to see how to compares with Nginx and Litespeed web servers.

Installed Apache v2.4.1 on CentOS 6.2 64bit with PHP 5.3.10:

[root@centos62 httpd-2.4.1]# php -v
PHP 5.3.10 (cli) (built: Feb 23 2012 17:54:33) 
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2012 Zend Technologies

[root@centos62 httpd-2.4.1]# httpd -V
Server version: Apache/2.4.1 (Unix)
Server built:   Feb 23 2012 17:27:45
Servers Module Magic Number: 20120211:0
Server loaded:  APR 1.4.6, APR-UTIL 1.4.1
Compiled using: APR 1.4.6, APR-UTIL 1.4.1
Architecture:   64-bit
Server MPM:     event
  threaded:     yes (fixed thread count)
    forked:     yes (variable process count)
Server compiled with....
 -D APR_HAS_SENDFILE
 -D APR_HAS_MMAP
 -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
 -D APR_USE_SYSVSEM_SERIALIZE
 -D APR_USE_PTHREAD_SERIALIZE
 -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
 -D APR_HAS_OTHER_CHILD
 -D AP_HAVE_RELIABLE_PIPED_LOGS
 -D DYNAMIC_MODULE_LIMIT=256
 -D HTTPD_ROOT="/usr"
 -D SUEXEC_BIN="/usr/bin/suexec"
 -D DEFAULT_PIDLOG="/var/run/httpd.pid"
 -D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
 -D DEFAULT_ERRORLOG="logs/error_log"
 -D AP_TYPES_CONFIG_FILE="/etc/httpd/conf/mime.types"
 -D SERVER_CONFIG_FILE="/etc/httpd/conf/httpd.conf"

[root@centos62 httpd-2.4.1]# httpd -l
Compiled in modules:
  core.c
  mod_so.c
  http_core.c

[root@centos62 httpd-2.4.1]# httpd -M
Loaded Modules:
 core_module (static)
 so_module (static)
 http_module (static)
 authn_file_module (shared)
 authn_core_module (shared)
 authz_host_module (shared)
 authz_groupfile_module (shared)
 authz_user_module (shared)
 authz_core_module (shared)
 access_compat_module (shared)
 auth_basic_module (shared)
 reqtimeout_module (shared)
 filter_module (shared)
 deflate_module (shared)
 mime_module (shared)
 log_config_module (shared)
 env_module (shared)
 expires_module (shared)
 headers_module (shared)
 setenvif_module (shared)
 version_module (shared)
 mpm_event_module (shared)
 unixd_module (shared)
 status_module (shared)
 autoindex_module (shared)
 dir_module (shared)
 alias_module (shared)
 php5_module (shared)

[root@centos62 httpd-2.4.1]# ls /etc/httpd/modules/
httpd.exp               mod_authz_user.so      mod_ext_filter.so           mod_negotiation.so     mod_setenvif.so
libphp5.so              mod_autoindex.so       mod_file_cache.so           mod_proxy_ajp.so       mod_slotmem_plain.so
mod_access_compat.so    mod_bucketeer.so       mod_filter.so               mod_proxy_balancer.so  mod_slotmem_shm.so
mod_actions.so          mod_buffer.so          mod_headers.so              mod_proxy_connect.so   mod_socache_dbm.so
mod_alias.so            mod_cache_disk.so      mod_heartbeat.so            mod_proxy_express.so   mod_socache_dc.so
mod_allowmethods.so     mod_cache.so           mod_heartmonitor.so         mod_proxy_fcgi.so      mod_socache_memcache.so
mod_asis.so             mod_case_filter_in.so  mod_include.so              mod_proxy_fdpass.so    mod_socache_shmcb.so
mod_auth_basic.so       mod_case_filter.so     mod_info.so                 mod_proxy_ftp.so       mod_speling.so
mod_auth_digest.so      mod_cgid.so            mod_lbmethod_bybusyness.so  mod_proxy_html.so      mod_ssl.so
mod_auth_form.so        mod_charset_lite.so    mod_lbmethod_byrequests.so  mod_proxy_http.so      mod_status.so
mod_authn_anon.so       mod_data.so            mod_lbmethod_bytraffic.so   mod_proxy_scgi.so      mod_substitute.so
mod_authn_core.so       mod_dav_fs.so          mod_lbmethod_heartbeat.so   mod_proxy.so           mod_unique_id.so
mod_authn_dbd.so        mod_dav_lock.so        mod_log_config.so           mod_ratelimit.so       mod_unixd.so
mod_authn_dbm.so        mod_dav.so             mod_log_debug.so            mod_reflector.so       mod_userdir.so
mod_authn_file.so       mod_dbd.so             mod_log_forensic.so         mod_remoteip.so        mod_usertrack.so
mod_authn_socache.so    mod_deflate.so         mod_logio.so                mod_reqtimeout.so      mod_version.so
mod_authz_core.so       mod_dialup.so          mod_lua.so                  mod_request.so         mod_vhost_alias.so
mod_authz_dbd.so        mod_dir.so             mod_mime_magic.so           mod_rewrite.so         mod_watchdog.so
mod_authz_dbm.so        mod_dumpio.so          mod_mime.so                 mod_sed.so             mod_xml2enc.so
mod_authz_groupfile.so  mod_echo.so            mod_mpm_event.so            mod_session_cookie.so
mod_authz_host.so       mod_env.so             mod_mpm_prefork.so          mod_session_dbd.so
mod_authz_owner.so      mod_expires.so         mod_mpm_worker.so           mod_session.so

It’s official, Percona XtraBackup does not support MariaDB 5.2 & 5.3 MySQL yet

eva2000 — Mon, 06 Feb 2012 06:28:29 +0000

Percona XtraBackup tool for non-blocking MySQL InnoDB and XtraDB backups has been out for a while now. There’s been an outstanding bug #733665 logged since March, 2011 with regards to Percona XtraBackup’s innobackupex-1.5.1 script not detecting MariaDB 5.2 and now 5.3 based MySQL forks.

When you run Percona XtraBackup’s innobackupex-1.5.1 script with MariaDB 5.2 or 5.3 installed, the script will fail. I’ve mentioned this before on page 3 of my mysqlmybackup.sh script article and provided a patch for it for the version of Percona XtraBackup at that time which was v1.60 Rev 245. The innobackupex-1.5.1 script will fail with ending line 336:

innobackupex-1.5.1: Error: ibbackup child process has died at /usr/bin/innobackupex-1.5.1 line 336.

I recently revisited this with MariaDB 5.2.10 and Percona XtraBackup v1.6.4 Rev 314 and the same problem happens still – that is MariaDB 5.2 and 5.3 isn’t properly recognised by Percona XtraBackup. It seems to be pretty much certain that Percona XtraBackup tool isn’t going to officially support MariaDB 5.2 and 5.3 with the latest bug status update statement:

MariaDB is not in the official list of supported databases. The bug is to stay in Wishlist until we decide to change that.

So folks using MariaDB 5.2 or 5.3 MySQL server just be aware that Percona XtraBackup may not work with your version of MySQL.

Patch fix work around

I’ve updated my patch for Percona XtraBackup v1.6.4 Rev 314 and tested it against MariaDB 5.2.10 64bit on CentOS 6.2 64bit and it works fine. If you really need the patch, you can contact me. But I take no responsibility for any issues you come across, so use it at your risk or wait until Percona updates XtraBackup to official support MariaDB 5.2 and 5.3.

Here’s sample output with MariaDB 5.2.10 working properly on patched version of Percona XtraBackup Rev 1.6.4 Rev 314:

[root@sbe backup]# /usr/bin/innobackupex-1.5.1 /backup
 
InnoDB Backup Utility v1.5.1-xtrabackup; Copyright 2003, 2009 Innobase Oy
and Percona Inc 2009-2011.  All Rights Reserved.
 
This software is published under
the GNU GENERAL PUBLIC LICENSE Version 2, June 1991.
 
120106 21:57:43  innobackupex-1.5.1: Starting mysql with options:  --unbuffered --
120106 21:57:43  innobackupex-1.5.1: Connected to database with mysql child process (pid=9996)
120106 21:57:49  innobackupex-1.5.1: Connection to database server closed
IMPORTANT: Please check that the backup run completes successfully.
           At the end of a successful backup run innobackupex-1.5.1
           prints "completed OK!".
 
innobackupex-1.5.1: Using mysql  Ver 14.16 Distrib 5.2.10-MariaDB, for unknown-linux-gnu (x86_64) using readline 5.1
innobackupex-1.5.1: Using mysql server version This software comes with ABSOLUTELY NO WARRANTY. This is free software,
 
innobackupex-1.5.1: Created backup directory /backup/2012-01-06_21-57-49
120106 21:57:49  innobackupex-1.5.1: Starting mysql with options:  --unbuffered --
120106 21:57:49  innobackupex-1.5.1: Connected to database with mysql child process (pid=10019)
120106 21:57:51  innobackupex-1.5.1: Connection to database server closed
 
120106 21:57:51  innobackupex-1.5.1: Starting ibbackup with command: xtrabackup --backup --suspend-at-end --target-dir=/backup/2012-01-06_21-57-49
innobackupex-1.5.1: Waiting for ibbackup (pid=10025) to suspend
innobackupex-1.5.1: Suspend file '/backup/2012-01-06_21-57-49/xtrabackup_suspended'
 
xtrabackup version 1.6.4 for Percona Server 5.1.59 unknown-linux-gnu (x86_64) (revision id: 314)
xtrabackup: uses posix_fadvise().
xtrabackup: cd to /var/lib/mysql
InnoDB: Warning: innodb_log_block_size has been changed from its default value. (###EXPERIMENTAL### operation)
InnoDB: The log block size is set to 4096.
xtrabackup: Target instance is assumed as followings.
xtrabackup:   innodb_data_home_dir = ./
xtrabackup:   innodb_data_file_path = ibdata1:2G:autoextend
xtrabackup:   innodb_log_group_home_dir = ./
xtrabackup:   innodb_log_files_in_group = 2
xtrabackup:   innodb_log_file_size = 536870912
xtrabackup: use O_DIRECT
120106 21:57:51  InnoDB: Warning: allocated tablespace 10, old maximum was 9
>> log scanned up to (262144247)
[01] Copying ./ibdata1 
     to /backup/2012-01-06_21-57-49/ibdata1
>> log scanned up to (262144247)
[01]        ...done
[01] Copying ./sbtest/sbtest1.ibd 
     to /backup/2012-01-06_21-57-49/sbtest/sbtest1.ibd
>> log scanned up to (262144247)
[01]        ...done
 
120106 21:58:05  innobackupex-1.5.1: Continuing after ibbackup has suspended
120106 21:58:05  innobackupex-1.5.1: Starting mysql with options:  --unbuffered --
120106 21:58:05  innobackupex-1.5.1: Connected to database with mysql child process (pid=10040)
>> log scanned up to (262144247)
120106 21:58:07  innobackupex-1.5.1: Starting to lock all tables...
>> log scanned up to (262144247)
>> log scanned up to (262144247)
120106 21:58:17  innobackupex-1.5.1: All tables locked and flushed to disk
 
120106 21:58:17  innobackupex-1.5.1: Starting to backup .frm, .MRG, .MYD, .MYI,
innobackupex-1.5.1: .TRG, .TRN, .ARM, .ARZ, .CSM, .CSV and .opt files in
innobackupex-1.5.1: subdirectories of '/var/lib/mysql'
innobackupex-1.5.1: Backing up files '/var/lib/mysql/mysql/*.{frm,MYD,MYI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}' (69 files)
innobackupex-1.5.1: Backing up file '/var/lib/mysql/sbtest/sbtest1.frm'
innobackupex-1.5.1: Backing up file '/var/lib/mysql/sbtest/db.opt'
120106 21:58:17  innobackupex-1.5.1: Finished backing up .frm, .MRG, .MYD, .MYI, .TRG, .TRN, .ARM, .ARZ, .CSV, .CSM and .opt files
 
innobackupex-1.5.1: Resuming ibbackup
 
xtrabackup: The latest check point (for incremental): '262144247'
>> log scanned up to (262144247)
xtrabackup: Stopping log copying thread.
xtrabackup: Transaction log of lsn (262144247) to (262144247) was copied.
120106 21:58:19  innobackupex-1.5.1: All tables unlocked
120106 21:58:19  innobackupex-1.5.1: Connection to database server closed
 
innobackupex-1.5.1: Backup created in directory '/backup/2012-01-06_21-57-49'
innobackupex-1.5.1: MySQL binlog position: filename '', position 
120106 21:58:19  innobackupex-1.5.1: completed OK!
 
ls -lh /backup/2012-01-06_21-57-49
total 2.1G
-rw-r--r-- 1 root root  334 Jan  6 21:57 backup-my.cnf
-rw-r--r-- 1 root root 2.0G Jan  6 21:58 ibdata1
drwxr-xr-x 2 root root 4.0K Jan  6 21:58 mysql
drwx------ 2 root root 4.0K Jan  6 21:58 sbtest
drwxr-xr-x 2 root root 4.0K Jan  6 21:58 test
-rw-r--r-- 1 root root   10 Jan  6 21:58 xtrabackup_binary
-rw-r--r-- 1 root root    1 Jan  6 21:58 xtrabackup_binlog_info
-rw-r--r-- 1 root root   81 Jan  6 21:58 xtrabackup_checkpoints
-rw-r--r-- 1 root root  20K Jan  6 21:58 xtrabackup_logfile

Unfortunately, Percona XtraBackup isn’t the only tool with MySQL compatibility issues. Mydumper multi-threaded backup tool doesn’t seem to properly work with MySQL 5.5.x as yet according to bug #803982 but works fine with MariaDB 5.2 and MySQL Community 5.1.x releases. Then there’s issues with MariaDB 5.2.9/5.2.10 with Tungsten Replicator based replication – issue #256 which weren’t present in MariaDB 5.2.7 which I tested with before. Hopefully, these issues eventually get fixed – at least my favourite pairing works fine, MariaDB 5.2/5.3 + Mydumper.

Percona Server 5.5.19-24.0 Released

eva2000 — Wed, 18 Jan 2012 13:59:53 +0000

Percona MySQL Server 5.5.19-24.0 has been released. Based on MySQL 5.5.19, it includes all the bug fixes in it.

New Features

Variable innodb_flush_neighbor_pages can be now set to a new value cont. The previously-available option values 0 and 1 now have more descriptive names none and area. The value of none disables the neighbor page flush and area matches the default InnoDB behavior: any dirty pages in the vicinity of the page selected for flushing may be flushed too. The new option value cont improves the neighbor flushing by considering only contiguous blocks of neighbor pages, thus performing the flush by sequential instead of random I/O. (Yasufumi Kinoshita,Laurynas Biveinis)
Improvements to the XtraDB’s sync flush algorithm. If the XtraDB checkpoint age grows dangerously close to its limit and XtraDB is forced to perform a sync flush, these changes should slightly improve the user query performance instead of completely blocking them. (Yasufumi Kinoshita, Laurynas Biveinis)

Bug Fixes

Minor MEMORY engine test suite fix: #849921 (Laurynas Biveinis)
A fix for testsuite integration into Jenkins: #911237 (Oleg Tsarev)

mysqladmin ver
mysqladmin  Ver 8.42 Distrib 5.5.19, for Linux on x86_64
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
 
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
 
Server version          5.5.19-55
Protocol version        10
Connection              Localhost via UNIX socket
UNIX socket             /var/lib/mysql/mysql.sock
Uptime:                 22 min 56 sec
 
Threads: 1  Questions: 2  Slow queries: 0  Opens: 33  Flush tables: 1  Open tables: 26  
Queries per second avg: 0.001

rpm -qa | grep Percona
Percona-Server-server-55-5.5.19-rel24.0.204.rhel6.x86_64
Percona-Server-shared-compat-5.5.19-rel24.0.204.rhel6.x86_64
Percona-Server-shared-55-5.5.19-rel24.0.204.rhel6.x86_64
Percona-Server-test-55-5.5.19-rel24.0.204.rhel6.x86_64
Percona-Server-devel-55-5.5.19-rel24.0.204.rhel6.x86_64
Percona-Server-client-55-5.5.19-rel24.0.204.rhel6.x86_64

mysql -e "show plugins;"
+--------------------------------+----------+--------------------+---------+---------+
| Name                           | Status   | Type               | Library | License |
+--------------------------------+----------+--------------------+---------+---------+
| binlog                         | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| mysql_native_password          | ACTIVE   | AUTHENTICATION     | NULL    | GPL     |
| mysql_old_password             | ACTIVE   | AUTHENTICATION     | NULL    | GPL     |
| MRG_MYISAM                     | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| MEMORY                         | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| MyISAM                         | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| CSV                            | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| PERFORMANCE_SCHEMA             | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| BLACKHOLE                      | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| ARCHIVE                        | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| InnoDB                         | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| INNODB_RSEG                    | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_TRX                     | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_LOCKS                   | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_LOCK_WAITS              | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_CMP                     | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_CMP_RESET               | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_CMPMEM                  | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_CMPMEM_RESET            | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_TABLES              | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_TABLESTATS          | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_INDEXES             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_COLUMNS             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_FIELDS              | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_FOREIGN             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_FOREIGN_COLS        | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_SYS_STATS               | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_TABLE_STATS             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_INDEX_STATS             | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_BUFFER_POOL_PAGES       | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_BUFFER_POOL_PAGES_INDEX | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| INNODB_BUFFER_POOL_PAGES_BLOB  | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| XTRADB_ADMIN_COMMAND           | ACTIVE   | INFORMATION SCHEMA | NULL    | GPL     |
| FEDERATED                      | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
| partition                      | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |
+--------------------------------+----------+--------------------+---------+---------+

Unixy Varnish v1.4.5 RC7 Released fixes Varnish Cache Error 400 Bad Requests

eva2000 — Wed, 18 Jan 2012 03:30:28 +0000

WHM/Cpanel and Direct Admin users who have installed Unixy Varnish Cpanel plugin would be happy to know Unixy Varnish v1.4.5 RC7 has been released to fix Varnish Error 400 Bad Requests error messages.

Google search for the error message shows various reasons for 400 Bad Requests errors related to backend Apache web server settings for LimitRequestFieldSize and LimitRequestLine. On the other end, it can also be caused by the Varnish Cache server’s own http request and response header length settings which were added in Varnish v3.x and default to 4096 bytes respectively which is half the size of Apache corresponding settings.

Unixy Varnish v1.4.5 RC7 release raised these limits for http request and response header length settings by 5x and 8x times their own pre-1.4.5rc7 defaults (which were 1/2 and 1/8th the size of the usual non-Unixy Varnish defaults).

Error 400 Bad Request

Error 400 Bad Request
 
Bad Request
Guru Meditation:
 
XID: 1234567890
 
Varnish cache server