bin/mongod?–auth?-dbpath /Users/mc2/mongo/db -logpath /Users/mc2/mongo/log.log

db.addUser(“admin”, “123456″)

db.auth(“admin”, “123456″)

db.system.users.find()

{ “_id” : ObjectId(“5032e8386a7fc39e31978c50″), “user” : “admin”, “readOnly” : false, “pwd” : “95ec4261124ba5951720b199908d892b” }

db.runCommand({fsync:1,lock:1})

db.runCommand({fsync:1,lock:1})

{ “errmsg” : “access denied; use admin db”, “ok” : 0 }

use admin

> db.runCommand({fsync:1,lock:1})

{

“info” : “now locked against writes, use db.fsyncUnlock() to unlock”,

“seeAlso” : “http://www.mongodb.org/display/DOCS/fsync+Command“,

“ok” : 1

}

db.currentOp()

> db.currentOp()

{

“inprog” : [ ],

“fsyncLock” : 1,

“info” : “use db.fsyncUnlock() to terminate the fsync write/snapshot lock”

}

use admin

>db.fsyncUnlock()

{ “ok” : 1, “info” : “unlock completed” }

 

db.$cmd.sys.unlock.findOne() 效果等同

 

> db.currentOp()

{ “inprog” : [ ] }