MongoDB failed to start again

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MongoDB failed to start again

1、Error log

Dec  6 21:16:28 mongodb01 mongod[6734]: {"t":{"$date":"2024-12-06T21:16:28.816+08:00"},"s":"E",  "c":"CONTROL",  "id":20557,   "ctx":"initandlisten","msg":"DBException in initAndListen, terminating","attr":{"error":"NonExistentPath: Data directory /data/db not found. Create the missing directory or specify another path using (1) the --dbpath command line option, or (2) by adding the 'storage.dbPath' option in the configuration file."}}

2、conf file

# Where and how to store data.
storage:
  dbPath: /mongodb/data/data
  wiredTiger:
    engineConfig:
      cacheSizeGB: 2

3、systemd file

ExecStart=/usr/bin/mongod

There is no variable in the parameter file in the execution path of mongod, so the default read path of mongod is /data/db.