1.mongodump 备份 用法：bin/mongodump [options] 举例：将本机6666端口的数据库备份到本机的/data/6666目录下 bin/mongodump --port 6666 --directoryperdb -o /data/6666 connected to: 127.0.0.1:6666 all dbs DATABASE: test to /data/6666/test test.system.indexes to /data/6666/test/system.indexes.bson 1 objects test.ints to /data/6666/test/ints.bson 4 objects DATABASE: admin to /data/6666/admin
2.mongorestore 恢复 用法：bin/mongorestore [options] [directory or filename to restore from] 举例：将数据库test删除，然后从备份目录恢复 > show dbs admin (empty) local 4.201171875GB test 0.203125GB > use test switched to db test > db.dropDatabase() { "dropped" : "test", "ok" : 1 } > show dbs admin (empty) local 4.201171875GB 使用mongorestore恢复 bin/mongorestore -host 127.0.0.1:6666 --directoryperdb /data/6666/ connected to: 127.0.0.1:6666 Wed Jul 6 16:37:33 /data/6666/test/ints.bson Wed Jul 6 16:37:33 going into namespace [test.ints] Wed Jul 6 16:37:33 4 objects found Wed Jul 6 16:37:33 /data/6666/test/system.indexes.bson Wed Jul 6 16:37:33 going into namespace [test.system.indexes] Wed Jul 6 16:37:33 { name: "_id_", ns: "test.ints", key: { _id: 1 }, v: 0 } Wed Jul 6 16:37:33 1 objects found 查看数据库是否恢复 > show dbs admin (empty) local 4.201171875GB test 0.203125GB mongorestore有个参数--drop，使用此参数，会先将集合里的数据都删除了再恢复 就是说，如果你备份完数据后有新增数据，那么使用--drop，新增的数据会不见 不使用此参数，恢复备份的时候新增的数据依然存在
