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Got warning from server regarding Disk space getting full.
After checking into file manager I found 17.2 GB of file size in session folder.
When looked into var/session folder, I can see unusual size ranging from 400 MB to 2.5 GB and years of these files as 2031, 1987, 1970, 1990.
Is it normal to have session files with size 2GB and greater?
Even unable to delete these unusual session files (Response: 550 Could not delete sess_2fjtnha6k4be02r2p1ofdh1qt4: Invalid argument)