ok, Did that in all slaves.
Checked and compared the databases of master server and web slave server, there where a few differences between the servers related to the tables web_database and web_database_user
- mainly server ID field for webserver, in my case webserver is id4. The id shows up correctly in slave web server but not in the master (it was showing either 0 or ID1)
- also permissions were different, some ru other riud... changed them all to riud
- the database_user_prefix was showing # for some older first databases... instead of correct prefix
???? all this is weird
since it's the first time I have ever edited the database manually. Took me a few hours to correct all this and have proper info exactly the same in both servers.
Regarding the backups... they are being done correctly in the slave server and stored in /var/backup .... also the slave server under the database table web_backup shows all backups, past and present, web and mysql.
The master server is not syncing this table
. The table is totally empty in the master server. To test, I manually created 2 rows exactly the same as in the webserver. And voilá... web zip and sql show up in the control panel under backups for the selected website. To test further I clicked download for both files (web zip and mysql), a few minutes later both files successfully showed up inside the website backup directory.
In ubuntu 12.04 64x mysql database table for web_backup does not sync, web or mysql.