Plesk Backup not working

[Jan Schmidwenzl]

Hello,
I recently had a Problem, that plesk backup resulted in a reboot of the Server anytime the backup started. So the Server rebooted every 30 minutes, until i discovered it and stopped the backups. I then cleaned up all backups. But in the /var/lib/psa/dump Folder a lot of backups still remained.

So i deleted all files in the /var/lib/psa/dump Folder. But now i have another Problem. I cannot make any backup now. When i start a backup i get the error message:
(in german)
Fehler: Der Backupvorgang ist fehlgeschlagen: Nicht genügend Speicherplatz für das Backup.

in english (i guess):
error: The backup process failed. not enough space for the backup

the Problem is: there is enough space on the Server (only 20% full), there are more than 1.6TB left. So i think plesk has a Problem and throws the wrong error.

Can anyone help me how to fix this, or to reset the plesk backup mechanism?

thanks,
Jan

this is what i found in the logfile:
[2018-02-13 20:15:59.042|10486] INFO: Outgoing packet:
<?xml version="1.0" ?><response>
<errcode>0</errcode>
<data>
<task-list>
<task backup-profile-name="" creation-date="2018-Feb-13 20:15:58" owner-guid="92e42bab-2e2b-45b4-b49a-e25fdac68629" owner-type="server" task-id="669" task-pid="" task-type="Backup">
<task-status task-id="669">
<stopped/>
</task-status>
<dumps-storage-credentials storage-type="local" use-ftps="false" use-passive-ftp-mode="false">
<root-dir>/var/lib/psa/dumps</root-dir>
</dumps-storage-credentials>
</task>
<task backup-profile-name="" creation-date="2018-Feb-13 20:05:54" owner-guid="92e42bab-2e2b-45b4-b49a-e25fdac68629" owner-type="server" task-id="668" task-pid="" task-type="Backup">
<task-status task-id="668">
<stopped/>
</task-status>
<dumps-storage-credentials storage-type="local" use-ftps="false" use-passive-ftp-mode="false">
<root-dir>/var/lib/psa/dumps</root-dir>
</dumps-storage-credentials>
</task>
<task backup-profile-name="" creation-date="2018-Feb-13 20:03:12" owner-guid="92e42bab-2e2b-45b4-b49a-e25fdac68629" owner-type="server" task-id="667" task-pid="" task-type="Backup">
<task-status task-id="667">
<stopped/>
</task-status>
<dumps-storage-credentials storage-type="local" use-ftps="false" use-passive-ftp-mode="false">
<root-dir>/var/lib/psa/dumps</root-dir>
</dumps-storage-credentials>
</task>
</task-list>
</data>
</response>
[2018-02-13 20:15:59.084|10487] DEBUG: --> <pmmcli.GetDumpsListAction object at 0x7f60c7140d90>
[2018-02-13 20:15:59.084|10487] INFO: parameters: ['-lightweight-mode']
[2018-02-13 20:15:59.085|10487] INFO: stdin: <?xml version="1.0" ?><dump-list-query><dumps-storage-credentials storage-type="local"><root-dir>/var/lib/psa/dumps</root-dir><file-name/></dumps-storage-credentials><object-specification guid="92e42bab-2e2b-45b4-b49a-e25fdac68629" type="server"/></dump-list-query>
[2018-02-13 20:15:59.087|10487] INFO: Packet succesfully validated.
[2018-02-13 20:15:59.087|10487] DEBUG: <pmmcli.ActionRunner object at 0x7f60c7140dd0>: doActivity
[2018-02-13 20:15:59.087|10487] INFO: Exception 'KeyError('FORCE_DEBUG_LOG',)' during retrieving key FORCE_DEBUG_LOG value: 'FORCE_DEBUG_LOG'
[2018-02-13 20:15:59.088|10487] INFO: Executing <subprocess[10488] '/opt/psa/admin/bin/pmm-ras --get-dump-list --dump-storage=/var/lib/psa/dumps/ --type=server --guid=92e42bab-2e2b-45b4-b49a-e25fdac68629 --session-path=/var/log/plesk/PMM'>
[2018-02-13 20:15:59.094|10487] INFO: Execution of <subprocess[10488] '/opt/psa/admin/bin/pmm-ras --get-dump-list --dump-storage=/var/lib/psa/dumps/ --type=server --guid=92e42bab-2e2b-45b4-b49a-e25fdac68629 --session-path=/var/log/plesk/PMM'> finished successfully.
[2018-02-13 20:15:59.094|10487] DEBUG: <pmmcli.GetDumpsListAction object at 0x7f60c7140d90>: response
[2018-02-13 20:15:59.095|10487] INFO: Outgoing packet:
<?xml version="1.0" ?><response>
<errcode>0</errcode>
<data>
<dump-list skipped-files-count="">
</dump-list>
</data>
</response>

 

[IgorG]

Do you have enough free disk space in /tmp?
What about free inodes?

 

[Jan Schmidwenzl]

I found it - although the error message is really misleading. the file /usr/local/psa/admin/share/pmmcli/pmmcli-src had 0 bytes. I copied it from another server. Now the backup works again - really strange...