Question

我从debian 6升级到debian 8.之后我将MongoDB从2.5升级到3.2.9。他们好像已经改变了数据库路径，因为我看不到任何数据库。我升级了dbpath。 Stil我看不到任何数据库。

seprst@SESTOWS011:/data/db$ ls
graddays  graddays.0  graddays.ns  journal  local  local.0  local.ns  mongod.lock  mypdb  mypdb.0  mypdb.ns
seprst@SESTOWS011:/data/db$ sudo service mongod stop
seprst@SESTOWS011:/data/db$ mongod --dbpath /data/db
2016-08-17T12:02:26.468+0200 I CONTROL  [initandlisten] MongoDB starting : pid=22283 port=27017 dbpath=/data/db 64-bit host=SESTOWS011
2016-08-17T12:02:26.468+0200 I CONTROL  [initandlisten] db version v3.2.9
2016-08-17T12:02:26.468+0200 I CONTROL  [initandlisten] git version: 22ec9e93b40c85fc7cae7d56e7d6a02fd811088c
2016-08-17T12:02:26.468+0200 I CONTROL  [initandlisten] OpenSSL version: OpenSSL 1.0.1t  3 May 2016
2016-08-17T12:02:26.469+0200 I CONTROL  [initandlisten] allocator: tcmalloc
2016-08-17T12:02:26.469+0200 I CONTROL  [initandlisten] modules: none
2016-08-17T12:02:26.469+0200 I CONTROL  [initandlisten] build environment:
2016-08-17T12:02:26.469+0200 I CONTROL  [initandlisten]     distmod: debian71
2016-08-17T12:02:26.469+0200 I CONTROL  [initandlisten]     distarch: x86_64
2016-08-17T12:02:26.469+0200 I CONTROL  [initandlisten]     target_arch: x86_64
2016-08-17T12:02:26.469+0200 I CONTROL  [initandlisten] options: { storage: { dbPath: "/data/db" } }
2016-08-17T12:02:26.513+0200 I -        [initandlisten] Detected data files in /data/db created by the 'mmapv1' storage engine, so setting the ac                                               tive storage engine to 'mmapv1'.
2016-08-17T12:02:26.530+0200 I JOURNAL  [initandlisten] journal dir=/data/db/journal
2016-08-17T12:02:26.545+0200 I JOURNAL  [initandlisten] recover : no journal files present, no recovery needed
2016-08-17T12:02:26.590+0200 I JOURNAL  [initandlisten] warning couldn't write to / rename file /data/db/journal/prealloc.0: couldn't open file /                                               data/db/journal/prealloc.0 for writing errno:9 Bad file descriptor
2016-08-17T12:02:26.590+0200 I STORAGE  [initandlisten] exception in initAndListen: 13516 couldn't open file /data/db/journal/j._0 for writing er                                               rno:9 Bad file descriptor, terminating
2016-08-17T12:02:26.590+0200 I CONTROL  [initandlisten] now exiting
2016-08-17T12:02:26.590+0200 I NETWORK  [initandlisten] shutdown: going to close listening sockets...
2016-08-17T12:02:26.590+0200 I NETWORK  [initandlisten] removing socket file: /tmp/mongodb-27017.sock
2016-08-17T12:02:26.590+0200 I NETWORK  [initandlisten] shutdown: going to flush diaglog...
2016-08-17T12:02:26.590+0200 I NETWORK  [initandlisten] shutdown: going to close sockets...
2016-08-17T12:02:26.591+0200 I STORAGE  [initandlisten] shutdown: waiting for fs preallocator...
2016-08-17T12:02:26.591+0200 I STORAGE  [initandlisten] shutdown: final commit...
2016-08-17T12:02:26.591+0200 I STORAGE  [initandlisten] shutdown: closing all files...
2016-08-17T12:02:26.591+0200 I STORAGE  [initandlisten] closeAllFiles() finished
2016-08-17T12:02:26.591+0200 I CONTROL  [initandlisten] dbexit:  rc: 100
seprst@SESTOWS011:/data/db$ sudo service mongod start
seprst@SESTOWS011:/data/db$ mongo
MongoDB shell version: 3.2.9
connecting to: test
Server has startup warnings:
2016-08-17T12:02:40.540+0200 I CONTROL  [initandlisten]
2016-08-17T12:02:40.540+0200 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
2016-08-17T12:02:40.540+0200 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2016-08-17T12:02:40.540+0200 I CONTROL  [initandlisten]
> show dbs
local  0.000GB
>

有什么建议吗？

Answer 1

评论存在格式问题，因此发布为答案

ps -xa | grep mongod

打开配置文件cat /etc/mongod.conf 对我来说这是dbPath：/ var / lib / mongodb 你可以查看你的设置。

永久更改永久性风险

sudo service mongod stop
sudo ln -s /data/db/ /var/lib/mongodb
sudo chown mongodb:mongodb /data/db/
sudo service mongod start

//测试mongodb用户是否可以访问新位置：

sudo -u mongodb -s cd /data/db/

MongoDB，更改数据库路径，无法正常工作

1 个答案: