一、物理备份(拷贝文件) #!/bin/shDATE=`date+%Y%m%d`DEL_DATE=$(date-d'-30days'"+%Y%m%d")HOST=10.10.17.27PORT=27000USER=adminPASSWORD=123456DATA_DIR="/data/mongodb/navy_db/db"BACKUP_PATH="/data/mongodbbackup/$DATE"date+%Y%m%d%H%M/data/log/m
一、物理备份(拷贝文件)
#!/bin/sh DATE=`date +%Y%m%d` DEL_DATE=$(date -d '-30 days' "+%Y%m%d") HOST=10.10.17.27 PORT=27000 USER=admin PASSWORD=123456 DATA_DIR="/data/mongodb/navy_db/db" BACKUP_PATH="/data/mongodbbackup/$DATE" date +%Y%m%d%H%M >>/data/log/mongodb_bak.log #第一步锁表 lock() { echo "db.fsyncLock()"| mongo --host $HOST --port $PORT -u $USER -p $PASSWORD admin } execute() { lock if [ $? -eq 0 ] then echo "mongodb lock successfully!" >>/data/log/mongodb_bak.log else echo "mongodb lock fail!" >>/data/log/mongodb_bak.log fi } execute #第二步备份 back() { rsync -av $DATA_DIR $BACKUP_PATH/ } execute() { back if [ $? -eq 0 ] then echo "mongodb back successfully!" >>/data/log/mongodb_bak.log else echo "mongodb back fail!" >>/data/log/mongodb_bak.log fi } execute #第三部解锁 unlock() { echo "db.fsyncUnlock()"| mongo --host $HOST --port $PORT -u $USER -p $PASSWORD admin } execute() { unlock if [ $? -eq 0 ] then echo "mongodb unlock successfully!" >>/data/log/mongodb_bak.log else echo "mongodb unlock fail!" >>/data/log/mongodb_bak.log fi } execute #删除历史数据 rm -rf "/data/mongodbbackup/${DEL_DATE}/"
PS:
物理备份只能全库恢复,不能恢复单个表
恢复步骤:
1、停止需要恢复的实例 2、备份清空/data/mongodb/navy_db/db目录 3、拷贝/data/mongodbbackup/$DATE下面的所有文件和文件夹到/data/mongodb/navy_db/db目录 4、chown mongod:mongod /data/mongodb/navy_db/db/ -R 5、启动实例
二、mongodump备份
#!/bin/sh DATE=`date +%Y%m%d` DEL_DATE=$(date -d '-30 days' "+%Y%m%d") HOST=10.10.17.27:27000 USER=admin PASSWORD=123456 BACKUP_PATH="/backup/mongodbbackup/$DATE" date +%Y%m%d%H%M >>/data/log/mongodb_bak.log start() { mongodump -h $HOST -u $USER -p $PASSWORD -o $BACKUP_PATH } execute() { start if [ $? -eq 0 ] then echo "mongodb back successfully!" >>/data/log/mongodb_bak.log else echo "mongodb back fail!" >>/data/log/mongodb_bak.log fi } execute rm -rf "/backup/mongodbbackup/${DEL_DATE}/"
恢复:
1、全库恢复
mongorestore --host 10.10.17.27 --port 27000 /backup/mongodbbackup/20150818/
2、单集合(表的概念)恢复
mongorestore --host 10.10.17.27 --port 27001 --db navy_db_new --collection navy_db_table_new /backup/mongodbbackup/20150818/navy_db/navy_db_table.bson
三、复制集备份
#!/bin/sh DATE=`date +%Y%m%d` DEL_DATE=$(date -d '-30 days' "+%Y%m%d") HOST="dbset/10.10.17.27:27000,10.10.17.26:27000" USER=admin PASSWORD=123456 BACKUP_PATH="/data/mongodbbackup/$DATE" date +%Y%m%d%H%M >>/data/log/mongodb_bak.log start() { mongodump -h $HOST -u $USER -p $PASSWORD --oplog -o $BACKUP_PATH } execute() { start if [ $? -eq 0 ] then echo "mongodb back successfully!" >>/data/log/mongodb_bak.log else echo "mongodb back fail!" >>/data/log/mongodb_bak.log fi } execute rm -rf "/backup/mongodbbackup/${DEL_DATE}/"
PS:
备份复制集和备份单个mongodb实例用mongodump备份的方法差不多,只是host的写法不一样,需要指定复制集名称,还有就是加上 --oplog参数,来跟踪备份时主库上发生的所有写操作,获取一个pointin-time快照,否则备份的状态将与集 群中其他节点不匹配。在恢复时,还必须创建oplog,并指定--oplogReplay参数来应用这些操作,否则恢复的成员将不知道从何处开始同步,从 而在某个时间点上与源服务器保持一致。
恢复:
1、降复制集中要恢复的节点移除
rs.remove("10.10.17.26:27000")
2、运行mongorestore --oplogReplay命令
mongorestore --host 10.10.17.26 --port 27000 --oplogReplay /data/mongodbbackup/20150820/
3、创建oplog
use local db.createCollection("oplog.rs", {"capped" : true, "size" : 10000000})
4、恢复oplog
mongorestore --host 10.10.17.26 --port 27000 -d local -c oplog.rs /data/mongodbbackup/20150820/oplog.bson
5、将该节点加入到复制集
rs.add("10.10.17.26:27000")