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MongoDB导出-导入-迁移

MongoDB导出-导入-迁移
 
linux环境下,将mongodb迁移到同机器,不同端口上。
 
命令参数:
 
[mongodb@pera bin]$ ./mongodump --help
Export MongoDB data to BSON files.
 
options:
  --help                  produce help message
  -v [ --verbose ]        be more verbose (include multiple times for more 
                          verbosity e.g. -vvvvv)
  --version               print the program's version and exit
  -h [ --host ] arg       mongo host to connect to ( <set name>/s1,s2 for 
                          sets)
  --port arg              server port. Can also use --host hostname:port
  --ipv6                  enable IPv6 support (disabled by default)
  -u [ --username ] arg   username
  -p [ --password ] arg    password
  --dbpath arg            directly access mongod database files in the given 
                          path, instead of connecting toa mongod  server - 
                          needs to lock the datadirectory, so cannot be used 
                          if a mongod is currentlyaccessing the same path
  --directoryperdb        if dbpath specified, each db is in a separate 
                          directory
  --journal               enable journaling
  -d [ --db ] arg         database to use
  -c [ --collection ] arg  collectionto use (some commands)
  -o [ --out ] arg (=dump) output directoryor "-" for stdout
  -q [ --query ] arg      json query
  --oplog                 Use oplog for point-in-time snapshotting
  --repair                try to recover a crashed database
  --forceTableScan        force a table scan (do not use $snapshot)
 
 
 
[mongodb@pera bin]$ ./mongorestore --help
Import BSON files into MongoDB.
 
 
usage: ./mongorestore [options] [directory or filenameto restore from]
options:
  --help                 produce help message
  -v [ --verbose ]       be more verbose (include multiple times for more 
                         verbosity e.g. -vvvvv)
  --version              print the program's version and exit
  -h [ --host ] arg      mongo host to connect to ( <set name>/s1,s2 for sets)
  --port arg             server port. Can also use --host hostname:port
  --ipv6                 enable IPv6 support (disabled by default)
  -u [ --username ] arg   username
  -p [ --password ] arg   password
  --dbpath arg           directly access mongod database files in the given 
                         path, instead of connecting to amongod  server - 
                         needs to lock the data directory, socannot be used 
                         if a mongod is currently accessingthe same path
  --directoryperdb       if dbpath specified, each db is in a separate 
                         directory
  --journal              enable journaling
  -d [ --db ] arg        database to use
  -c [ --collection ] arg collection to use(some commands)
  --objcheck             validate object before inserting
  --filter arg           filter to apply before inserting
  --drop                 drop each collection before import
  --oplogReplay          replay oplog for point-in-time restore
  --oplogLimit arg       exclude oplog entries newer than provided timestamp 
                         (epoch[:ordinal])
  --keepIndexVersion     don't upgrade indexes to newest version
  --noOptionsRestore     don't restore collection options
  --noIndexRestore       don't restore indexes
  --w arg (=1)           minimum number of replicas per write
 
 
 
主机信息:
 
 
 
[root@pera ~]# more /etc/redhat-release 
Red Hat Enterprise Linux Server release 5.6(Tikanga)
[root@pera ~]# uname -a
Linux pera 2.6.18-238.el5xen #1 SMP Sun Dec 1914:42:02 EST 2010 x86_64 x86_64 x86_64 GNU/Linux
[root@pera ~]# more /proc/cpuinfo |grepmodel 
model           : 15
model name      : Intel(R)Pentium(R) Dual  CPU  E2180  @ 2.00GHz
model           : 15
model name      : Intel(R)Pentium(R) Dual  CPU  E2180  @ 2.00GHz
[root@pera ~]# cat /proc/meminfo |grep Mem
MemTotal:      1784832 kB
MemFree:          5528kB
[root@pera ~]# free
            total       used       free    shared    buffers     cached
Mem:       1784832   1777060       7772          0       964    1600104
-/+ buffers/cache:     175992   1608840
Swap:      5144568    150492    4994076
 
使用mongodump数据导出
 
[root@pera bin]# su -mongodb
 
[mongodb@pera bin]$ ./mongo
MongoDB shell version: 2.2.2
connecting to: test
> show dbs
admin   (empty)
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