无法更改 mongod 的 dbPath

Question

I am trying to set up MongoDB v4.2.2 on Windows 10.

Whenever I run mongod, I am unable to change the dbPath, no matter what I do. It keeps defaulting to F:/MongoDB , every single time.

This is the logs from running any form of the mongod command:

2019-12-29T22:40:28.438-0800 I  CONTROL  [initandlisten] MongoDB starting : pid=9860 port=27017 dbpath=F:/MongoDB 64-bit host=DESKTOP-5CA5F06
2019-12-29T22:40:28.438-0800 I  CONTROL  [initandlisten] targetMinOS: Windows 7/Windows Server 2008 R2
2019-12-29T22:40:28.438-0800 I  CONTROL  [initandlisten] db version v4.2.2
2019-12-29T22:40:28.438-0800 I  CONTROL  [initandlisten] git version: a0bbbff6ada159e19298d37946ac8dc4b497eadf
2019-12-29T22:40:28.438-0800 I  CONTROL  [initandlisten] allocator: tcmalloc
2019-12-29T22:40:28.438-0800 I  CONTROL  [initandlisten] modules: none
2019-12-29T22:40:28.438-0800 I  CONTROL  [initandlisten] build environment:
2019-12-29T22:40:28.438-0800 I  CONTROL  [initandlisten]     distmod: 2012plus
2019-12-29T22:40:28.438-0800 I  CONTROL  [initandlisten]     distarch: x86_64
2019-12-29T22:40:28.439-0800 I  CONTROL  [initandlisten]     target_arch: x86_64
2019-12-29T22:40:28.439-0800 I  CONTROL  [initandlisten] options: { storage: { dbPath: "F:/MongoDB" } }
2019-12-29T22:40:28.440-0800 I  STORAGE  [initandlisten] exception in initAndListen: NonExistentPath: Data directory F:/2019-12-29T22:40:28.440-0800 I  NETWORK  [initandlisten] shutdown: going to close listening sockets...
2019-12-29T22:40:28.440-0800 I  -        [initandlisten] Stopping further Flow Control ticket acquisitions.
2019-12-29T22:40:28.440-0800 I  CONTROL  [initandlisten] now exiting
2019-12-29T22:40:28.441-0800 I  CONTROL  [initandlisten] shutting down with code:100

I first tried running mongod -dbpath C:/mongo-data/testdb , and got the above result.

I then tried mongod -dbpath "C:/mongo-data/testdb , to the same result.

Then I changedthe mongod.cfg file in C:/Program Files/MongoDB/Server/4.2/bin to be the following:

# mongod.conf

# for documentation of all options, see:
#   http://docs.mongodb.org/manual/reference/configuration-options/

# Where and how to store data.
storage:
  dbPath: "C:\mongo-data\testdb"
  journal:
    enabled: true
#  engine:
#  mmapv1:
#  wiredTiger:

# where to write logging data.
systemLog:
  destination: file
  logAppend: true
  path:  %MONGO_LOG_PATH%\mongod.log

# network interfaces
net:
  port: 27017
  bindIp: 127.0.0.1


#processManagement:

#security:

#operationProfiling:

#replication:

#sharding:

## Enterprise-Only Options:

#auditLog:

#snmp:

and then ran mongod , followed by the two commands above once more. Each time, I got the same exact result I posted above.

I also tried removing the quotes around the value for dbPath in the config, and running each command again to the same result.

How on earth do I get mongod to stop looking for this F:/MongoDB directory that doesn't exist?

Answer 1

Please give it a try with mongod --dbpath "C:/mongo-data/testdb" .

Change here is, the dbpath comes with '--' instead of a single one.