2018-01-30T18:45:25.744+0100 I CONTROL  [initandlisten] MongoDB starting : pid=19451 port=27017 dbpath=/data/db 64-bit host=production
2018-01-30T18:45:25.744+0100 I CONTROL  [initandlisten] db version v3.2.7
2018-01-30T18:45:25.744+0100 I CONTROL  [initandlisten] git version: 4249c1d2b5999ebbf1fdf3bc0e0e3b3ff5c0aaf2
2018-01-30T18:45:25.744+0100 I CONTROL  [initandlisten] OpenSSL version: OpenSSL 1.0.1f 6 Jan 2014
2018-01-30T18:45:25.744+0100 I CONTROL  [initandlisten] allocator: tcmalloc
2018-01-30T18:45:25.744+0100 I CONTROL  [initandlisten] modules: none
2018-01-30T18:45:25.744+0100 I CONTROL  [initandlisten] build environment:
2018-01-30T18:45:25.744+0100 I CONTROL  [initandlisten]     distmod: ubuntu1404
2018-01-30T18:45:25.744+0100 I CONTROL  [initandlisten]     distarch: x86_64
2018-01-30T18:45:25.744+0100 I CONTROL  [initandlisten]     target_arch: x86_64
2018-01-30T18:45:25.744+0100 I CONTROL  [initandlisten] options: {}
2018-01-30T18:45:25.769+0100 I -        [initandlisten] Detected data files in /data/db created by the 'wiredTiger' storage engine, so setting the active storage engine to 'wiredTiger'.
2018-01-30T18:45:25.769+0100 I STORAGE  [initandlisten] wiredtiger_open config: create,cache_size=18G,session_max=20000,eviction=(threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0),
2018-01-30T18:45:25.776+0100 E STORAGE  [initandlisten] WiredTiger (-31802) [1517334325:776898][19451:0x7f902b158cc0], file:WiredTiger.wt, connection: unable to read root page from file:WiredTiger.wt: WT_ERROR: non-specific WiredTiger error
2018-01-30T18:45:25.776+0100 E STORAGE  [initandlisten] WiredTiger (0) [1517334325:776951][19451:0x7f902b158cc0], file:WiredTiger.wt, connection: WiredTiger has failed to open its metadata
2018-01-30T18:45:25.776+0100 E STORAGE  [initandlisten] WiredTiger (0) [1517334325:776964][19451:0x7f902b158cc0], file:WiredTiger.wt, connection: This may be due to the database files being encrypted, being from an older version or due to corruption on disk
2018-01-30T18:45:25.776+0100 E STORAGE  [initandlisten] WiredTiger (0) [1517334325:776979][19451:0x7f902b158cc0], file:WiredTiger.wt, connection: You should confirm that you have opened the database with the correct options including all encryption and compression options
2018-01-30T18:45:25.777+0100 I -        [initandlisten] Assertion: 28595:-31802: WT_ERROR: non-specific WiredTiger error
2018-01-30T18:45:25.777+0100 I STORAGE  [initandlisten] exception in initAndListen: 28595 -31802: WT_ERROR: non-specific WiredTiger error, terminating
2018-01-30T18:45:25.777+0100 I CONTROL  [initandlisten] dbexit:  rc: 100