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Akeeba Backup for Joomla!

#12735 Kettenrad :: Empty object found when processing domain 'init'. This should never happen.

Posted in ‘Akeeba Backup for Joomla! 4 & 5’
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Environment Information

Joomla! version
n/a
PHP version
n/a
Akeeba Backup version
n/a

Latest post by nicholas on Thursday, 21 June 2012 12:08 CDT

user28677
Mandatory information about my setup:

Have I read the related troubleshooter articles above before posting (which pages?)? Yes
Have I searched the tickets before posting? Yes
Have I read the documentation before posting (which pages?)? Yes
Joomla! version: (2.5.4)
PHP version: (5.2.17)
MySQL version: (5.0.90)
Host: (dedicated cloud Apache/2.2.3 (CentOS) with plesk)
Akeeba Backup version: (3.5.1 pro)

EXTREMELY IMPORTANT: Please attach a ZIP file containing your Akeeba Backup log file in order for us to help you with any backup or restoration issue. If the file is over 2Mb, please upload it on your server and post a link to it.

Description of my issue:
Hello,

First of all I must say that I'm not sure if this problem is caused by akeeba backup, but it is the most resourse intensive task it's made on the server, so I took a look at the logs and I saw the error, so maybe you can can give me the solution.

The problem I see in the server is that the databases get broken in time. I have 4 or 5 akeeba backup cron tasks on the server for some big databases about 50 mb. The backups are uploaded to Dropbox.

The poroblems I see in the server is that the tables get Overheaded and in some cases all the system crashes and I see in all my domains could not connect to mysql...

I've set up a cron task that repairs the databases every 30 minutes [mysqlcheck -Aaos -uUSER -pPASS] but this problem was not happening before. Ok my server is very busy in this dates, but, I did not made a lot of changes to the software, only updating plesk and joomlas... I think that this should not be happening...

As I told before I'm not sure if the database degradation is cause by akeeba backup but, I saw the eror on logs so I would like to know if this could be the reason MySQL is breaking.

Sorry for any inconveninece

Best regards

Xavier Pallicer
http://www.cloudhotelier.com

nicholas
Akeeba Staff
Manager
Hi Xavier,

If your tables use the MyISAM storage then you'll see that the table which breaks the most is the #__session table. If your tables use InnoDB storage you just get a database crash (as all tables share the same binary file). This is not caused by Akeeba Backup. It's caused by Joomla! itself. For each and every visitor coming to your site, Joomla! creates a new session. Each session creates a new database record. Over time this degrades the sessions table and causes the problems you mentioned. The only workaround is running a table optimisation every few hours to few minutes (depending on the site's traffic). I've actually added that option in Admin Tools Professional since its first version :)

Nicholas K. Dionysopoulos

Lead Developer and Director

🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!

user28677
Thank you for the reply.

I see the option in admintools, it would be nice if that optimization could be made through a cron job too. My server is breaking with too much in the latest weeks...

Kind Regards and thank you for your great extensions!

nicholas
Akeeba Staff
Manager
No, I mean that you can edit the parameters of the "System - Admin Tools" plugin. See? A scheduled optimisation for the sessions table is right there.

Nicholas K. Dionysopoulos

Lead Developer and Director

🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!

user28677
Ok, I see! Great, thanks!

nicholas
Akeeba Staff
Manager
You're welcome :)

Nicholas K. Dionysopoulos

Lead Developer and Director

🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!

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