新到 MongoDB 不能运行 mongo 命令

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Check that path to database data files exists ;) :

Sun Nov 06 18:48:37 [initandlisten] exception in initAndListen: 10296 dbpath (/data/db) does not exist, terminating

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最佳答案

I think your log output states it clearly;

exception in initAndListen: 10296 dbpath (/data/db) does not exist, terminating

You may simply create this directory or better to define it as a configuration value within your configuration file then use it as mongod -f C:\path\to\your\mongodb.conf.

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Specify the database path explicitly like so, and see if that resolves the issue.

mongod --dbpath data/db

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After installing the MongoDB you should manually create a data folder.

By default MongoDB will store data in /data/db,
but it won't automatically create that directory. To create it, do:


$ sudo mkdir -p /data/db/
$ sudo chown `id -u` /data/db


You can also tell MongoDB to use a different data directory,
with the --dbpath option.

For more detailed information go to MongoDB wiki page.

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mongod --dbpath "c://data/db"

run the above code, this will start the server.

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Create the data/db directory in your main (windows) partition:

C:\> mkdir \data
C:\> mkdir \data\db

and then go to your mongo_directory/bin and run mongod.exe:

C:\> cd \my_mongo_dir\bin


C:\my_mongo_dir\bin> mongod

DON't CLOSE THIS WINDOW

Now in a different command prompt window run Mongo:

C:\> cd \my_mongo_dir\bin
C:\my_mongo_dir\bin> mongo

(REMEMBER YOU HAVE TO KEEP THAT OTHER WINDOW OPEN)

This solved the problem for me.

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Also check if you have installed the Mongo as a windows service and if its running. That's also important. There might port conflict because of that.

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This worked for me (if it applies that you also see the lock file):

first>youridhere@ubuntu:/var/lib/mongodb$ sudo service mongodb start
then >youridhere@ubuntu:/var/lib/mongodb$ sudo rm mongod.lock*

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create folder structure data/db in the working directory and then starting up mongodb using "mongod --dbpath data/db" works just fine

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After several attempts this works for me on Windows 7 env.:

Initially directory to which you have copied all MongDB sources has such view:

bsondump.exe
mongo.exe
mongod.exe
mongod.pdb
mongodump.exe
mongoexport.exe
mongofiles.exe
mongoimport.exe
mongooplog.exe
mongoperf.exe
mongorestore.exe
mongos.exe
mongos.pdb
mongostat.exe
mongotop.exe

All you need is to add data directory and db directory nested( data/db ) Final view should look like this:

data
bsondump.exe
mongo.exe
mongod.exe
mongod.pdb
mongodump.exe
mongoexport.exe
mongofiles.exe
mongoimport.exe
mongooplog.exe
mongoperf.exe
mongorestore.exe
mongos.exe
mongos.pdb
mongostat.exe
mongotop.exe

Than simply type in directory where MongoDB sources and data/db dirs exist this command:

C:\my_mongo_dir\bin>mongod --dbpath .\data\db

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You should create a startup.bat if you're using Windows, much more convenient:

C:\mongodb\mongodb-win32-x86_64-eiditon\bin\mongod.exe --dbpath C:\mongodb\data

And just dbclick startup.bat and mongodb will run using C:\mongodb\data as its data folder.

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For Windows 7

You may specify an alternate path for \data\db with the dbpath setting for mongod.exe,

as in the following example:

c:\mongodb\bin\mongod.exe --dbpath c:\mongodb\data\db

or

you can set dbpath through Configuration File.

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You just need to create directory in C:. as C:\data\db\

Now just start mongoDB:

C:\Users\gi.gupta>"c:\Program Files\MongoDB\Server\3.2\bin\mongod.exe"
2016-05-03T10:49:30.412+0530 I CONTROL  [main] Hotfix KB2731284 or later update is not installed, will zero-out data files
2016-05-03T10:49:30.414+0530 I CONTROL  [initandlisten] MongoDB starting : pid=7904 port=27017 dbpath=C:\data\db\ 64-bit host=GLTPM-W036
2016-05-03T10:49:30.414+0530 I CONTROL  [initandlisten] targetMinOS: Windows 7/Windows Server 2008 R2
2016-05-03T10:49:30.414+0530 I CONTROL  [initandlisten] db version v3.2.6
2016-05-03T10:49:30.414+0530 I CONTROL  [initandlisten] git version: 05552b562c7a0b3143a729aaa0838e558dc49b25
2016-05-03T10:49:30.414+0530 I CONTROL  [initandlisten] OpenSSL version: OpenSSL 1.0.1p-fips 9 Jul 2015
2016-05-03T10:49:30.414+0530 I CONTROL  [initandlisten] allocator: tcmalloc
2016-05-03T10:49:30.414+0530 I CONTROL  [initandlisten] modules: none
2016-05-03T10:49:30.414+0530 I CONTROL  [initandlisten] build environment:
2016-05-03T10:49:30.414+0530 I CONTROL  [initandlisten]     distmod: 2008plus-ssl
2016-05-03T10:49:30.414+0530 I CONTROL  [initandlisten]     distarch: x86_64
2016-05-03T10:49:30.414+0530 I CONTROL  [initandlisten]     target_arch: x86_64
2016-05-03T10:49:30.414+0530 I CONTROL  [initandlisten] options: {}
2016-05-03T10:49:30.427+0530 I -        [initandlisten] Detected data files in C:\data\db\ created by the 'wiredTiger' storage engine, so setting the active storage engine to
2016-05-03T10:49:30.429+0530 I STORAGE  [initandlisten] wiredtiger_open config: create,cache_size=1G,session_max=20000,eviction=(threads_max=4),config_base=false,statistics=(f
chive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0),
2016-05-03T10:49:30.998+0530 I NETWORK  [HostnameCanonicalizationWorker] Starting hostname canonicalization worker
2016-05-03T10:49:30.998+0530 I FTDC     [initandlisten] Initializing full-time diagnostic data capture with directory 'C:/data/db/diagnostic.data'
2016-05-03T10:49:31.000+0530 I NETWORK  [initandlisten] waiting for connections on port 27017
2016-05-03T10:49:40.766+0530 I NETWORK  [initandlisten] connection accepted from 127.0.0.1:57504 #1 (1 connection now open)

It will then run as service in background.

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If you're using Windows 7/ 7+.

Here is something you can try.

Check if the installation is proper in CONTROL PANEL of your computer.

Now goto the directory and where you've install the MongoDB. Ideally, it would be in

C:\Program Files\MongoDB\Server\3.6\bin

Then either in the command prompt or in the IDE's terminal. Navigate to the above path ( Ideally your save file) and type

mongod --dbpath

It should work alright!

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The very simplest approach given by mongo README help file

RUNNING

For command line options invoke:

$ ./mongod --help

To run a single server database:

$ sudo mkdir -p /data/db
$ ./mongod
$
$ # The mongo javascript shell connects to localhost and test database by default:
$ ./mongo
> help

If you are working with windows, go to your directory where you have mongo.exe

use the following commands, (I am sharing mine)

C:\Program Files\MongoDB\Server\3.6\bin>mkdir \data


C:\Program Files\MongoDB\Server\3.6\bin>mkdir \data\db


C:\Program Files\MongoDB\Server\3.6\bin>mongod ## this will start your mongoDB server

Now you need to run another CMD prompt and go to the directory where you have mongo and just run it

C:\Program Files\MongoDB\Server\3.6\bin>mongo ## this will start your mongoDB client

Hope it helped :)

If it doesn't work, run CMD as an administrator