Backup remote transfer bug when one account fail

[franciscopaniskaseker]

Problem: If one backup fail, you have to reload the remote backup transfer session or other backups actions will fail.

Steps to reproduce:

1. I was moving tree accounts and one of that failed due no free space at remove server to create the backup. The entire process of backup transfer stopped.
2. Then I tried (without reload the backup remote transfer session) to move the other two accounts... the backup was generated on remote server and copied. I do not remember now if I received any message about "successful" message about restoration, but I checked and they not restored. I received some message about "log not found". Sorry, I did not copy the red message that I received, but is something related with missing log file.
3. As I already see some ajax problems on cyberpanel, I tried to reload that session and tried the same two accounts... and it worked.

Tasks:

• [ ] Identify why one failed backup will stop the others
• [ ] Try to predict if there is no sufficient space on remote server to create a backup (will avoid problems with old server, also)
• [ ] Identify why the same session can not transfer backups anymore (need to reload the session)

I am using centos 7 updated and cyberpanel v2.0 on both servers.

[istiak101]

Closing Refs: #332, #333, #334, #336 and keeping this as parent thread for all these remote backup issues.