Scheduled backups no longer work after minor update.

[Lukasz Borek]

Hello,

Since updating to Confluence 6.15.7, 2 of our instances are no longer creating scheduled backups.

Permissions are okay, using option in the interface to create backup now works perfectly. There are no new errors in the  logs. 

I was trying the funny fix from here: https://community.atlassian.com/t5/Confluence-questions/Automatic-backup-service-enabled-no-backups-are-created/qaq-p/331114 
(Backup File Date Pattern" from "yyyy_MM_dd" to "yyyy_MM_dd_HHmmss".) but also no results.

Issue occurs on 2 (of 3) our instances. Ubuntu 18.04, 4gb ram. One instance is docker, second normal base vm. Till update everything was working fine. 

Any ideas? 

[Zak Laughton]

Hi Lukasz,

There are a number of different issues that could be impacting the backup. However, the built-in backup mechanism is not recommended for production instances, as it can be resource intensive, and is less efficient as the Confluence instance grows. Instead, we recommend following the Production Backup Strategy as a more reliable way to keep complete backups.

That said, failures of the built-in backup can be caused by memory shortages. I notice you have 4 GB of RAM, which is less than recommended by the Server Hardware Requirements Guide. You may want to try increasing this in the meantime.

I hope this helps!
– Zak