storage:
dbPath: /var/lib/mongodb
journal:
enabled: true
# engine:
mmapv1:
smallFiles: true
wiredTiger:
engineConfig:
configString : cache_size=160M
转载：https://www.cnblogs.com/jojoword/p/11448823.html
原文：https://www.cnblogs.com/wa502/p/13185365.html