The first thing you must do is to use the Configuration Wizard button in the Control Panel page to automatically adjust a series of configuration parameters to safer settings. The wizard performs benchmarking of your server to determine those values. It is not always 100% accurate, but the settings it creates are at the very least a good starting point for tweaking them manually. If it seems to get stuck for more than three minutes (180 seconds) the first time you run it, reload the page.
Check your free space. Akeeba Backup is trying to create an archive with your entire database and all of your site's files; it needs adequate free space to do that. If you don't have enough free space, your host will kill the script in mid-process, making Akeeba Backup's interface throw this error. As a rule of thumb, we propose having about 40-50% of your account's allocated quota free.
Some hosts claim to give you "unlimited" space, or an absurd amount like 100Gb. According to our experience, they mostly lie. On many occasions the host only gave 100Mb or 1Gb of space. If unsure, please ask your host about the real free space you have in your account.
Some servers have a very strict limit on the maximum execution time of PHP scripts. By default, Akeeba Backup is configured with a maximum execution time allowance of 14 seconds. In order to work around such hosts, please go to your Akeeba Backup Configuration page and scroll all the way down to the Fine Tuning pane. You will find an option labeled Maximum Execution Time. Select the "Custom..." option and type in 5 in the text box that appears to the right of the drop-down. Click on the Save button and retry backing up your site.
If this still doesn't work, try going into the Configuration page, find the Archiver Engine row and click on the "Configure..." button next to it. Set the "Part size for split archives" to 2Mb and retry.
If this still doesn't work, try the following settings:
- Minimum execution time: 5 seconds
- Maximum execution time: 3 seconds
- Runtime bias: 50%
If ti still fails please specify which of the preceding steps you have already tried and ZIP and attach your latest backup log file.
Nicholas K. Dionysopoulos
Lead Developer and Director
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