MongoDB 内存占用过大

# mongod.conf
# for documentation of all options, see:
#   http://docs.mongodb.org/manual/reference/configuration-options/
# Where and how to store data.
storage:
  dbPath: D:\Program Files\MongoDB\Server\4.2\data
  journal:
    enabled: true
#  engine: wiredTiger
#  mmapv1:
  wiredTiger:
    engineConfig:
      cacheSizeGB: 1
# where to write logging data.
systemLog:
  destination: file
  logAppend: true
  path:  D:\Program Files\MongoDB\Server\4.2\log\mongod.log
# network interfaces
net:
  port: 27017
#  bindIp: 127.0.0.1
  bindIp: 172.16.3.40
#processManagement:
#security:
#operationProfiling:
#replication:
#sharding:
## Enterprise-Only Options:
#auditLog:
#snmp: