Unable to log on to RHEV Manager. Error "Operation Cancelled. - Action failed due to database connection failure. Please check connectivity to your database server"

Solution Verified - Updated -

Issue

  • Unable to log on to RHEV Manager. Error Operation Cancelled. - Action failed due to database connection failure. Please check connectivity to your database server.

  • Following errors were seen under RHEVM logs :

rhevmgr3 NetworkManager[2213]: <warn> error saving timestamp: Failed to write file '/var/lib/NetworkManager/timestamps.N9TAQW': fflush() failed: No space left on device

Environment

  • Red Hat Enterprise Virtualization 3.X

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