I encountered an annoying when perform inserting with Mongodb v3.4.1.
Everytime when I start the test with a clean dbpath and run for 10-20 miniutes, it will
crash with checksum error. I do not shutdown the machine or mongodb manually.

Options: ./mongod --dbpath /home/df --logpath mgo_test.log --logappend --oplogSize 50000 --replSet data --storageEngine wiredTiger --wiredTigerCacheSizeGB 12 --directoryperdb --fork

./mongo "rs.initiate()"