MongoDb does not shutdown gracefully

[avarabei]

MongoDB does not shutdown gracefully and should have "trap" in the script to propagate signals properly to mongod process. Currently after the restart there is a recovery session. Log history:

2018-02-05T17:44:12.083+0000 W - [initandlisten] Detected unclean shutdown - /data/db/mongod.lock is not empty.
2018-02-05T17:44:12.088+0000 I - [initandlisten] Detected data files in /data/db created by the 'wiredTiger' storage engine, so setting the active storage engine to 'wiredTiger'.
2018-02-05T17:44:12.088+0000 W STORAGE [initandlisten] Recovering data from the last clean checkpoint.
2018-02-05T17:44:12.088+0000 I STORAGE [initandlisten]
2018-02-05T17:44:12.088+0000 I STORAGE [initandlisten] ** WARNING: Using the XFS filesystem is strongly recommended with the WiredTiger storage engine
2018-02-05T17:44:12.088+0000 I STORAGE [initandlisten] ** See http://dochub.mongodb.org/core/prodnotes-filesystem
2018-02-05T17:44:12.088+0000 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=15559M,session_max=20000,eviction=(threads_min=4,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),verbose=(recovery_progress),
2018-02-05T17:44:12.235+0000 I STORAGE [initandlisten] WiredTiger message [1517852652:235137][19:0x7f36514c2d40], txn-recover: Main recovery loop: starting at 5/269312
2018-02-05T17:44:12.235+0000 I STORAGE [initandlisten] WiredTiger message [1517852652:235448][19:0x7f36514c2d40], txn-recover: Recovering log 5 through 6
2018-02-05T17:44:12.299+0000 I STORAGE [initandlisten] WiredTiger message [1517852652:299916][19:0x7f36514c2d40], file:sizeStorer.wt, txn-recover: Recovering log 6 through 6
2018-02-05T17:44:12.395+0000 I STORAGE [initandlisten] Starting WiredTigerRecordStoreThread local.oplog.rs
2018-02-05T17:44:12.395+0000 I STORAGE [initandlisten] The size storer reports that the oplog contains 723 records totaling to 70328 bytes
2018-02-05T17:44:12.395+0000 I STORAGE [initandlisten] Scanning the oplog to determine where to place markers for truncation