MongoDB-MongoDB重裝系統後恢復

重裝系統後，把原mongoDB安裝目錄和原mongoDB的data目錄拷貝到新硬盤的D盤上。

恢復的方法以下。

一、D:\Mongodb裏放着mongod.cfg和data

C:\Users\Administrator>dir D:\Mongodb
驅動器 D 中的卷沒有標籤。
卷的序列號是 A48D-4D74

D:\Mongodb 的目錄

2017/05/06 21:48 <DIR> .
2017/05/06 21:48 <DIR> ..
2017/05/06 21:48 <DIR> data
2017/03/19 19:57 110 mongod.cfg
1 個文件 110 字節
3 個目錄 1,017,095,073,792 可用字節

其中mongod.cfg中內容以下：

systemLog:
destination: file
path: D:\Mongodb\data\log\mongod.log
storage:
dbPath: D:\Mongodb\data\db

二、打開cmd。執行

C:\Users\Administrator>"D:\Program Files\mongodb-win32-i386-3.0.7\bin\mongod.exe
" --config D:\Mongodb\mongod.cfg --install
2017-05-07T15:07:18.761+0800 I CONTROL
2017-05-07T15:07:18.763+0800 W CONTROL 32-bit servers don't have journaling ena
bled by default. Please use --journal if you want durability.
2017-05-07T15:07:18.763+0800 I CONTROL
2017-05-07T15:07:18.766+0800 I CONTROL log file "D:\Mongodb\data\log\mongod.log
" exists; moved to "D:\Mongodb\data\log\mongod.log.2017-05-07T07-07-18".

C:\Users\Administrator>net start MongoDB

MongoDB 服務已經啓動成功。

這個時候，在系統裏能夠看到mongodb的服務了。

三、測試下原來的數據還在不在。打開pycharm中mongodb的mongodb控件。作鏈接測試，發現鏈接超時。回到服務裏，發現mongodb狀態是中止的。因而打開日誌文件D:\Mongodb\data\log，有以下的報錯

2017-05-07T15:23:33.144+0800 I CONTROL Hotfix KB2731284 or later update is not installed, will zero-out data files
2017-05-07T15:23:33.147+0800 I CONTROL Trying to start Windows service 'MongoDB'
2017-05-07T15:23:33.148+0800 I STORAGE Service running
2017-05-07T15:23:33.149+0800 W - [initandlisten] Detected unclean shutdown - D:\Mongodb\data\db\mongod.lock is not empty.
2017-05-07T15:23:33.163+0800 I STORAGE [initandlisten] **************
Unclean shutdown detected.
Please visit http://dochub.mongodb.org/core/repair for recovery instructions.
*************
2017-05-07T15:23:33.166+0800 I STORAGE [initandlisten] exception in initAndListen: 12596 old lock file, terminating
2017-05-07T15:23:33.166+0800 I CONTROL [serviceStopWorker] dbexit: rc: 49

查詢了下，因而進入D:\Program Files\mongodb-win32-i386-3.0.7\bin目錄下，執行mongodb-win32-i386-3.0.7\bin>mongod --repair --dbpath D:\Mongodb\data\db

D:\Program Files\mongodb-win32-i386-3.0.7\bin>mongod --repair --dbpath D:\Mongodb\data\db
2017-05-07T15:25:34.931+0800 I CONTROL
2017-05-07T15:25:34.932+0800 W CONTROL 32-bit servers don't have journaling ena
bled by default. Please use --journal if you want durability.
2017-05-07T15:25:34.934+0800 I CONTROL
2017-05-07T15:25:34.940+0800 I CONTROL Hotfix KB2731284 or later update is not....

再從新net start MongoDB。進入服務，發現狀態是已啓動，再作鏈接測試，OK。查詢數據，也還在！

四、總結下，要作數據恢復。mongodb 32位能夠直接在64位windows下用，並且拷過來就行，不用安裝。