mongodb 3.4 学习 (五）备份&恢复

mongodb 3.4 学习 (五）备份&恢复

备份恢复命令

mongodump -h 127.0.0.1 -p 27017 -o /opt/backup -u app -p '@app' --collection demo --db app --oplog mongorestore -h 127.0.0.1 -p 27017 -u app -p '@app' /opt/backup/mongodump-2013-10-24 --oplogReplay

配置Hidden Secondary用于备份

conf = rs.conf() { ...... "members" : [ { "_id" : 0, "host" : "10.0.70.105:27021", "arbiterOnly" : false, "buildIndexes" : true, "hidden" : false, "priority" : 1, "tags" : { }, "slaveDelay" : NumberLong(0), "votes" : 1 }, { "_id" : 1, "host" : "10.0.70.105:27022", "arbiterOnly" : false, "buildIndexes" : true, "hidden" : false, "priority" : 1, "tags" : { }, "slaveDelay" : NumberLong(0), "votes" : 1 }, { "_id" : 2, "host" : "10.0.70.105:27023", "arbiterOnly" : false, "buildIndexes" : true, "hidden" : false, "priority" : 1, "tags" : { }, "slaveDelay" : NumberLong(0), "votes" : 1 } ], ...... } conf.members[2].hidden = true conf.members[2].priority = 0 conf { ...... "members" : [ { "_id" : 0, "host" : "10.0.70.105:27021", "arbiterOnly" : false, "buildIndexes" : true, "hidden" : false, "priority" : 1, "tags" : { }, "slaveDelay" : NumberLong(0), "votes" : 1 }, { "_id" : 1, "host" : "10.0.70.105:27022", "arbiterOnly" : false, "buildIndexes" : true, "hidden" : false, "priority" : 1, "tags" : { }, "slaveDelay" : NumberLong(0), "votes" : 1 }, { "_id" : 2, "host" : "10.0.70.105:27023", "arbiterOnly" : false, "buildIndexes" : true, "hidden" : true, "priority" : 0, "tags" : { }, "slaveDelay" : NumberLong(0), "votes" : 1 } ], ...... } rs.reconfig(conf) # 锁写 use admin db.fsyncLock() # 查看锁状态 use admin db.currentOp() # 解锁 use admin db.fsyncUnlock()

备份shard群集

# 1 关闭balancer use config sh.stopBalancer() # 2 锁定所有shard的复制集 db.fsyncLock() # 3 修改CSRS的复制集配置 use config db.BackupControl.findAndModify( { query: { _id: 'BackupControlDocument' }, update: { $inc: { counter : 1 } }, new: true, upsert: true, writeConcern: { w: 'majority', wtimeout: 15000 } } ) # 验证CSRS rs.slaveOk() use config db.BackupControl.find( { "_id" : "BackupControlDocument", "counter" : 1 } ).readConcern('majority'); # 4 锁定CSRS的复制集 db.fsyncLock() # 5 备份CSRS mongodump --oplog # 6 解锁CSRS db.fsyncUnlock() # 7 备份所有的shard mongodump --oplog # 8 解锁备份所有的shard db.fsyncUnlock() # 9 启动balancer use config sh.setBalancerState(true)

在新shard群集恢复数据

# 1 部署新shard复制集 # 2 部署新CSRS服务器 # 3 启动mongos服务 # 4 加入shard到群集 # 5 关闭mongs服务 # 6 恢复shard数据 mongorestore --drop --oplogReplay /data/dump/shardA --port 27021 # 7 恢复CSRS服务器 mongorestore --drop --oplogReplay /data/dump/configData # 8 启动mongs服务 # 9 重启CSRS服务 # 10 重启shard服务 # 11 重启其他mongs服务 # 12 校验群集 db.printShardingStatus() show collections posted on 2017-05-26 09:50 北京涛子 阅读( ...) 评论( ...) 编辑 收藏

转载于:https://www.cnblogs.com/liujitao79/p/6907053.html