Unable to create OpenVZ VM: Status Offline

Symptoms 

After creation of OpenVZ container, the status of the VM remains Offline in SolusVM and the virtual server is not booted up automatically.

CONFIG_TEXT: 2018-11-30T10:52:08+0100 vzctl : CT 101 : Starting container...
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter kmemsize not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter lockedpages not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter privvmpages not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter shmpages not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter numproc not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter physpages not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter vmguarpages not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter oomguarpages not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter numtcpsock not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter numflock not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter numpty not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter numsiginfo not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter tcpsndbuf not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter tcprcvbuf not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter othersockbuf not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter dgramrcvbuf not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter numothersock not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter numfile not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter dcachesize not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: required UB parameter numiptent not set
2018-11-30T10:52:08+0100 vzctl : CT 101 : Error: failed to apply some parameters, not saving configuration file!
2018-11-30T10:52:08+0100 vzctl : CT 101 : Warning: distribution not specified in CT config, using defaults from /etc/vz/dists/default

Cause

Ploop file system feature is misconfigured or corrupted.

Resolution

1. Connect to OpenVZ server via SSH
2. Update the ploop packages on the server using the below commands.
   

   # yum update vzctl ploop -y
   # yum install ploop -y
   # wget http://files.soluslabs.com/solusvm/installer/v3/ve-basic.conf-sample -O /etc/vz/conf/ve-basic.conf-sample
   # wget http://files.soluslabs.com/solusvm/installer/v3/ve-vswap-solus.conf-sample -O /etc/vz/conf/ve-vswap-solus.conf-sample

3. Make sure the template is downloaded completely on the server.
4. Enable the VSwap and Ploop option on the edit node settings page of the slave server from the SolusVM.