如果你有这样的问题: Failed:不能创建会话:不能连接到服务器:connection(): auth error: sasl conversation error: unable to authenticate using mechanism " sran - sha -1": (AuthenticationFailed)认证失败。

然后添加——authenticationDatabase admin

eg:

mongodb -h 192.168.20.30:27018——authenticationDatabase admin -u dbAdmin -p dbPassword -d dbName -o path/to/folder

一些选项现在已弃用，在4.4.5版本中，我是这样做的

mongodump --archive="my-local-db" --db=my


mongorestore --archive="my-local-db" --nsFrom='my.*' --nsTo='mynew.*'

阅读更多关于恢复:https://docs.mongodb.com/database-tools/mongorestore/

以下是恢复导出数据库时对我有效的方法:

Mongorestore -d 0 ./0——drop

其中。/包含导出的bson文件。注意——drop将覆盖现有数据。

如果你愿意，你可以将所有的集合导出到csv，而不需要指定——fields(将导出所有字段)。

从http://drzon.net/export-mongodb-collections-to-csv-without-specifying-fields/运行这个bash脚本

OIFS=$IFS;
IFS=",";

# fill in your details here
dbname=DBNAME
user=USERNAME
pass=PASSWORD
host=HOSTNAME:PORT

# first get all collections in the database
collections=`mongo "$host/$dbname" -u $user -p $pass --eval "rs.slaveOk();db.getCollectionNames();"`;
collections=`mongo $dbname --eval "rs.slaveOk();db.getCollectionNames();"`;
collectionArray=($collections);

# for each collection
for ((i=0; i<${#collectionArray[@]}; ++i));
do
    echo 'exporting collection' ${collectionArray[$i]}
    # get comma separated list of keys. do this by peeking into the first document in the collection and get his set of keys
    keys=`mongo "$host/$dbname" -u $user -p $pass --eval "rs.slaveOk();var keys = []; for(var key in db.${collectionArray[$i]}.find().sort({_id: -1}).limit(1)[0]) { keys.push(key); }; keys;" --quiet`;
    # now use mongoexport with the set of keys to export the collection to csv
    mongoexport --host $host -u $user -p $pass -d $dbname -c ${collectionArray[$i]} --fields "$keys" --csv --out $dbname.${collectionArray[$i]}.csv;
done

IFS=$OIFS;

按照以下步骤从服务器创建一个mongodb，并将其导入另一台服务器/本地机器，该服务器/本地机器具有用户名和密码

1. mongodump -d dbname -o dumpname -u username -p password
2. scp -r user@remote:~/location/of/dumpname ./
3. mongorestore -d dbname dumpname/dbname/ -u username -p password

#mongodump using sh script 
#!/bin/bash
TIMESTAMP=`date +%F-%H%M`
APP_NAME="folder_name"
BACKUPS_DIR="/xxxx/tst_file_bcup/$APP_NAME"
BACKUP_NAME="$APP_NAME-$TIMESTAMP"
/usr/bin/mongodump -h 127.0.0.1 -d <dbname> -o $BACKUPS_DIR/$APP_NAME/$BACKUP_NAME
tar -zcvf $BACKUPS_DIR/$BACKUP_NAME.tgz $BACKUPS_DIR/$APP_NAME/$BACKUP_NAME
rm -rf /home/wowza_analytics_bcup/wowza_analytics/wowza_analytics
### 7 days old backup delete automaticaly using given command

find /home/wowza_analytics_bcup/wowza_analytics/ -mindepth 1 -mtime +7 -delete