mac mongoDB终止服务后再重启报错完美解决。

个人最近正在研究mongo DB，是通过brew install mongodb安装的。

然后通过   

db.shutdownServer(); 

停止了服务。

然后在运行mongod就报错了。

superpeng@bogon  ~  mongod

2018-06-13T16:38:25.137+0800 I CONTROL  [initandlisten] MongoDB starting : pid=15496 port=27017 dbpath=/data/db 64-bit host=bogon

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] db version v3.6.5

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] git version: a20ecd3e3a174162052ff99913bc2ca9a839d618

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] OpenSSL version: OpenSSL 1.0.2o  27 Mar 2018

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] allocator: system

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] modules: none

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] build environment:

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten]    distarch: x86_64

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten]    target_arch: x86_64

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] options: {}

2018-06-13T16:38:25.138+0800 I STORAGE  [initandlisten] exception in initAndListen: IllegalOperation: Attempted to create a lock file on a read-only directory: /data/db, terminating

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] now exiting

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] shutting down with code:100

报错中说到，是不能读取/data/db，我们先添加这个文件夹

sudo mkdir -p /data/db

然后我们再尝试开启mongodb

mongodb

superpeng@bogon  ~  mongod

2018-06-13T16:38:25.137+0800 I CONTROL  [initandlisten] MongoDB starting : pid=15496 port=27017 dbpath=/data/db 64-bit host=bogon

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] db version v3.6.5

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] git version: a20ecd3e3a174162052ff99913bc2ca9a839d618

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] OpenSSL version: OpenSSL 1.0.2o  27 Mar 2018

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] allocator: system

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] modules: none

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] build environment:

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten]    distarch: x86_64

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten]    target_arch: x86_64

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] options: {}

2018-06-13T16:38:25.138+0800 I STORAGE  [initandlisten] exception in initAndListen: IllegalOperation: Attempted to create a lock file on a read-only directory: /data/db, terminating

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] now exiting

2018-06-13T16:38:25.138+0800 I CONTROL  [initandlisten] shutting down with code:100

还是报错了，我们来查看下权限

cd /data/db

ls -l    => 查看文件夹权限

-rw------- 1 root wheel 48 6 5 16:17 WiredTiger

-rw-------  1 root  wheel    21  6  5 16:17 WiredTiger.lock

-rw-------  1 root  wheel  1043  6  5 16:19 WiredTiger.turtle

-rw-------  1 root  wheel  53248  6  5 16:19 WiredTiger.wt

-rw-------  1 root  wheel  4096  6  5 16:19 WiredTigerLAS.wt

-rw-------  1 root  wheel  16384  6  5 16:19 _mdb_catalog.wt

-rw-------  1 root  wheel  16384  6  5 16:19 collection-0-2425423596569211332.wt

-rw-------  1 root  wheel  32768  6  5 16:19 collection-2-2425423596569211332.wt

drwx------  4 root  wheel    128  6  5 16:19 diagnostic.data

-rw-------  1 root  wheel  16384  6  5 16:19 index-1-2425423596569211332.wt

-rw-------  1 root  wheel  32768  6  5 16:19 index-3-2425423596569211332.wt

drwx------  5 root  wheel    160  6  5 16:18 journal

-rw-------  1 root  wheel      0  6  5 16:19 mongod.lock

-rw-------  1 root  wheel  32768  6  5 16:19 sizeStorer.wt

-rw-------  1 root  wheel    114  6  5 16:17 storage.bson

发现权限都是root的，让它的父级有最高(本机名字，我的是superpeng)权限吧

sudo chown -R superpeng /data

然后再连接mongodb就可以了

mongod