mongodb的备份还原案例(二)
metadata.json
-rw-r--r-- 1 root root 128 Jul 3 00:41 system.indexes.bson
-rw-r--r-- 1 root root 205 Jul 3 00:41 user.bson
-rw-r--r-- 1 root root 91 Jul 3 00:41 user.metadata.json
[root@Mongodb test]#
备份 出来的有带有数据的bson文件，还有index的bson文件
mongorestore是Mongodb从备份中恢复数据的工具，它主要用来获取mongodump的输出结果，并将备份的数据插入到运行的Mongodb中。
mongorestore用法；
[root@Mongodb ~]# mongorestore --help
Import BSON files into MongoDB.
usage: mongorestore [options] [directory or filename to 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 ( /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
--authenticationDatabase arg user source (defaults to dbname)
--authenticationMechanism arg (=MONGODB-CR)
authentication mechanism
--dbpath arg directly access mongod database files
in the given path, instead of
connecting to a mongod server - needs
to lock the data directory, so cannot
be used if a mongod is currently
accessing the same path
--directoryperdb each db is in a separate directly
(relevant only if dbpath specified)
--journal enable journaling (relevant only if
dbpath specified)
-d [ --db ] arg database to use
-c [ --collection ] arg collection to use (some commands)
--objcheck validate
object before inserting
(default)
--noobjcheck don't 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 include oplog entries before the
provided Timestamp (seconds[:ordinal])
during the oplog replay; the ordinal
value is optional
--keepIndexVersion don't upgrade indexes to newest version
--noOptionsRestore don't restore collection options
--noIndexRestore don't restore indexes
--w arg (=0) minimum number of replicas per write
You have new mail in /var/spool/mail/root
[root@Mongodb ~]#
以下进行恢复过程记录；
[root@Mongodb-B mongo]# scp -P 22 -r root@192.168.155.198:/data/db/dump /usr/local/ ------拷贝备份的目录文件到另一台新mongodb服务器上进行恢复
root@192.168.155.198's password:
code.bson 100% 1036 1.0KB/s 00:00
system.indexes.bson 100% 128 0.1KB/s 00:00
user.bson 100% 205 0.2KB/s 00:00
code.metadata.json 100% 91 0.1KB/s 00:00
user.metadata.json 100% 91 0.1KB/s 00:00
[root@Mongodb-B mongo]# cd /usr/local/
[root@Mongodb-B local]# ls
bin etc include libexec mongodb-linux-i686-2.4.4.tgz share
dump games lib mongo sbin src
[root@Mongodb-B local]# cd dump/
[root@Mongodb-B dump]# ls
test
[root@Mongodb-B dump]# ll ------------看到拷贝过来的备份目录内容
total 8
drwxr-xr-x 2 root root 4096 Jul 3 01:07 test
[root@Mongodb-B dump]# cd test/
[root@Mongodb-B test]# ls
code.bson system.indexes.bson user.metadata.json
code.metadata.json user.bson
[root@Mongodb-B test]# ll -----------看到拷贝过来的备份目录内容
total 40
-rw-r--r-- 1 root root 1036 Jul 3 01:07 code.bson
-rw-r--r-- 1 root root 91 Jul 3 01:07 code.metadata.json
-rw-r--r-- 1 root root 128 Jul 3 01:07 system.indexes.bson
-rw-r--r-- 1 root root 205 Jul 3 01:07 user.bson
-rw-r--r-- 1 root root 91 Jul 3 01:07 user.metadata.json