如何解决错误：dbpath（/ data / db /）在MongoDB中不存在

我在我的Ubuntu 10.04中安装了mongodb。

我知道，当使用“ mongod ”命令启动mongodb服务器时，它需要/ data / db文件夹，并且可以通过创build“/ data / db /”来轻松解决。 还有一种方法是使用mongod –dbpath“path”来提供你自己的path，当我们打算给我们自己的dbpath时。

但是，通过http://docs.mongodb.org/manual/tutorial/install-mongodb-on-ubuntu/链接时，我发现有一个configuration文件。

我做了以下更改。

＃mongodb.conf 

dbpath=/EBS/Work/mongodb/data/db/ logpath=/EBS/Work/mongodb/mongodb.log logappend=true

但仍然当我尝试启动服务器与“mongod”它会引发相同的错误，即错误：dbpath（/ data / db /）不存在 。 我想知道如何将我的dbpath永久redirect到我自己的自定义文件夹，因为每次您不想使用“mongod –dbpath path”键入path时，我们都会在configuration文件中进行一些更改。

假设您已按照说明安装MongoDB的打包版本 ，则应该使用service启动和停止mongod 。

启动mongod ： 

  sudo service mongodb start

停止mongod ： 

  sudo service mongodb stop

如果使用service命令来启动和停止，那么应该使用configuration文件： /etc/mongodb.conf 。

从命令行启动mongod

如果直接运行mongod而不是使用服务定义，那么如果需要使用configuration文件，还必须将configuration文件指定为命令行参数 ： 

 mongod --config /etc/mongodb.conf

下面是我如何解决这个问题，只需遵循他们的官方文件。 这里

从terminal一步一步（运行ubuntu）：

  1. cd进入/ srv文件夹= >> cd /srv/
  2. make directory = >> mkdir -p mongodb
  3. 从/ srv /给新创build的mongodb文件夹正确的权限和组……
  4. 最后，运行这个=> mongod --dbpath /srv/mongodb/

“一步一步”复制terminal…… :) 

  ~$ mongod Tue Jun 3 20:27:39.564 [initandlisten] MongoDB starting : pid=5380 port=27017 dbpath=/srv/mongodb/ 64-bit host= -SVE1411EGXB Tue Jun 3 20:27:39.564 [initandlisten] db version v2.4.10 Tue Jun 3 20:27:39.564 [initandlisten] git version: e3d78955d181e475345ebd60053a4738a4c5268a Tue Jun 3 20:27:39.564 [initandlisten] build info: Linux ip-10-2-29-40 2.6.21.7-2.ec2.v1.2.fc8xen #1 SMP Fri Nov 20 17:48:28 EST 2009 x86_64 BOOST_LIB_VERSION=1_49 Tue Jun 3 20:27:39.564 [initandlisten] allocator: tcmalloc Tue Jun 3 20:27:39.564 [initandlisten] options: { dbpath: "/srv/mongodb/" } Tue Jun 3 20:27:39.565 [initandlisten] exception in initAndListen: 10296 ********************************************************************* ERROR: dbpath (/srv/mongodb/) does not exist. Create this directory or give existing directory in --dbpath. See http://dochub.mongodb.org/core/startingandstoppingmongo ********************************************************************* , terminating Tue Jun 3 20:27:39.565 dbexit: Tue Jun 3 20:27:39.565 [initandlisten] shutdown: going to close listening sockets... Tue Jun 3 20:27:39.565 [initandlisten] shutdown: going to flush diaglog... Tue Jun 3 20:27:39.565 [initandlisten] shutdown: going to close sockets... Tue Jun 3 20:27:39.565 [initandlisten] shutdown: waiting for fs preallocator... Tue Jun 3 20:27:39.565 [initandlisten] shutdown: lock for final commit... Tue Jun 3 20:27:39.565 [initandlisten] shutdown: final commit... Tue Jun 3 20:27:39.565 [initandlisten] shutdown: closing all files... Tue Jun 3 20:27:39.565 [initandlisten] closeAllFiles() finished Tue Jun 3 20:27:39.565 dbexit: really exiting now ~$ mongod --dbpath /srv/mongodb/ Tue Jun 3 20:27:55.616 [initandlisten] MongoDB starting : pid=5445 port=27017 dbpath=/srv/mongodb/ 64-bit host= -SVE1411EGXB Tue Jun 3 20:27:55.616 [initandlisten] db version v2.4.10 Tue Jun 3 20:27:55.616 [initandlisten] git version: e3d78955d181e475345ebd60053a4738a4c5268a Tue Jun 3 20:27:55.616 [initandlisten] build info: Linux ip-10-2-29-40 2.6.21.7-2.ec2.v1.2.fc8xen #1 SMP Fri Nov 20 17:48:28 EST 2009 x86_64 BOOST_LIB_VERSION=1_49 Tue Jun 3 20:27:55.616 [initandlisten] allocator: tcmalloc Tue Jun 3 20:27:55.616 [initandlisten] options: { dbpath: "/srv/mongodb/" } Tue Jun 3 20:27:55.617 [initandlisten] exception in initAndListen: 10296 ~$ sudo service mongodb start start: Job is already running: mongodb ~$ sudo service mongodb stop mongodb stop/waiting ~$ cd /srv/ ~$~$/srv$ ls ~$ /srv$ mkdir mongodb ~$ sudo chgrp /srv ~$ sudo chmod 775 /srv ~$ cd /srv/ /srv$ ls /srv$ mkdir mongodb /srv$ ls mongodb /srv$ cd ~$ mongod --dbpath /srv/mongodb/ Tue Jun 3 20:40:57.457 [initandlisten] MongoDB starting : pid=6018 port=27017 dbpath=/srv/mongodb/ 64-bit host= -SVE1411EGXB Tue Jun 3 20:40:57.457 [initandlisten] db version v2.4.10 Tue Jun 3 20:40:57.457 [initandlisten] git version: e3d78955d181e475345ebd60053a4738a4c5268a Tue Jun 3 20:40:57.457 [initandlisten] build info: Linux ip-10-2-29-40 2.6.21.7-2.ec2.v1.2.fc8xen #1 SMP Fri Nov 20 17:48:28 EST 2009 x86_64 BOOST_LIB_VERSION=1_49 Tue Jun 3 20:40:57.457 [initandlisten] allocator: tcmalloc Tue Jun 3 20:40:57.457 [initandlisten] options: { dbpath: "/srv/mongodb/" } Tue Jun 3 20:40:57.520 [initandlisten] journal dir=/srv/mongodb/journal Tue Jun 3 20:40:57.521 [initandlisten] recover : no journal files present, no recovery needed Tue Jun 3 20:41:00.545 [initandlisten] preallocateIsFaster=true 36.86 Tue Jun 3 20:41:03.489 [initandlisten] preallocateIsFaster=true 35.06 Tue Jun 3 20:41:07.456 [initandlisten] preallocateIsFaster=true 34.44 Tue Jun 3 20:41:07.456 [initandlisten] preallocateIsFaster check took 9.935 secs Tue Jun 3 20:41:07.456 [initandlisten] preallocating a journal file /srv/mongodb/journal/prealloc.0 Tue Jun 3 20:41:10.009 [initandlisten] File Preallocator Progress: 985661440/1073741824 91% Tue Jun 3 20:41:22.273 [initandlisten] preallocating a journal file /srv/mongodb/journal/prealloc.1 Tue Jun 3 20:41:25.009 [initandlisten] File Preallocator Progress: 933232640/1073741824 86% Tue Jun 3 20:41:37.119 [initandlisten] preallocating a journal file /srv/mongodb/journal/prealloc.2 Tue Jun 3 20:41:40.093 [initandlisten] File Preallocator Progress: 1006632960/1073741824 93% Tue Jun 3 20:41:52.450 [FileAllocator] allocating new datafile /srv/mongodb/local.ns, filling with zeroes... Tue Jun 3 20:41:52.450 [FileAllocator] creating directory /srv/mongodb/_tmp Tue Jun 3 20:41:52.503 [FileAllocator] done allocating datafile /srv/mongodb/local.ns, size: 16MB, took 0.022 secs Tue Jun 3 20:41:52.517 [FileAllocator] allocating new datafile /srv/mongodb/local.0, filling with zeroes... Tue Jun 3 20:41:52.537 [FileAllocator] done allocating datafile /srv/mongodb/local.0, size: 64MB, took 0.02 secs Tue Jun 3 20:41:52.538 [websvr] admin web console waiting for connections on port 28017 Tue Jun 3 20:41:52.538 [initandlisten] waiting for connections on port 27017

更改新数据目录的用户：

chown mongodb [rute_directory]

并尝试另一次启动mongo服务

服务mongodb启动

我解决了这个问题。

  1. 从根系统文件夹中查找mongo日志文件

sudo find / -name“mongodb.log”-type f

结果：/var/log/mongodb/mongodb.log

  1. 打开/var/log/mongodb/mongodb.log

  2. search最后的“例外”单词

  3. 尝试纠正exception

在我的情况下，例外情况是：initAndListen：2015-07-30T15：09：15.806 + 0300 [initandlisten]例外：当日志/文件存在时，启用–journal时无法启动13597，终止

我做了下一个：

  1. cd / var / lib / mongodb
  2. rm -r journal /
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