副本集mogodb 物理备份与恢复

忘是亡心i 2024-03-30 15:30 76阅读 0赞

## 1. 副本集的搭建 ##

参考之前的文章  
https://liuyunshengsir.blog.csdn.net/article/details/127984232

## 2.物理备份文件 ##

直接备份目录即可，目录一定要权限设为可读写  
/data/mongodb/rs1

## 3.在新的机器恢复 ##

### 3.1 启动节点 ###

/home/mongodb/mongodb/bin/mongod --replSet rs --dbpath /data/mongodb/rs1 --port 27017 --fork --logpath /data/mongodb/rs1/mongod.log --bind_ip_all

/home/mongodb/bin/mongo

### 3.2 查看状态 ###

由于在新的环境ip发生的变化，会出现下面的报错

> rs.status()
    {
            "ok" : 0,
            "errmsg" : "Our replica set config is invalid or we are not a member of it",
            "code" : 93,
            "codeName" : "InvalidReplicaSetConfig"
    }

### 3.3 进行配置 ###

rs.reconfig({_id: "rs",version: 1,members: [{ _id: 0, host : "localhost:27017" }]},{force:true})

### 3.4 验证元数据的正确性 ###

> rs.reconfig({_id: "rs",version: 1,members: [{ _id: 0, host : "localhost:27017" }]},{force:true})
    { "ok" : 1 }
    rs:SECONDARY> rs.status()
    {
            "set" : "rs",
            "date" : ISODate("2023-01-06T08:19:59.590Z"),
            "myState" : 1,
            "term" : NumberLong(6),
            "syncSourceHost" : "",
            "syncSourceId" : -1,
            "heartbeatIntervalMillis" : NumberLong(2000),
            "majorityVoteCount" : 1,
            "writeMajorityCount" : 1,
            "votingMembersCount" : 1,
            "writableVotingMembersCount" : 1,
            "optimes" : {
                    "lastCommittedOpTime" : {
                            "ts" : Timestamp(1672993194, 2),
                            "t" : NumberLong(6)
                    },
                    "lastCommittedWallTime" : ISODate("2023-01-06T08:19:54.552Z"),
                    "readConcernMajorityOpTime" : {
                            "ts" : Timestamp(1672993194, 2),
                            "t" : NumberLong(6)
                    },
                    "appliedOpTime" : {
                            "ts" : Timestamp(1672993194, 2),
                            "t" : NumberLong(6)
                    },
                    "durableOpTime" : {
                            "ts" : Timestamp(1672993194, 2),
                            "t" : NumberLong(6)
                    },
                    "lastAppliedWallTime" : ISODate("2023-01-06T08:19:54.552Z"),
                    "lastDurableWallTime" : ISODate("2023-01-06T08:19:54.552Z")
            },
            "lastStableRecoveryTimestamp" : Timestamp(1672993194, 2),
            "electionCandidateMetrics" : {
                    "lastElectionReason" : "electionTimeout",
                    "lastElectionDate" : ISODate("2023-01-06T08:19:54.548Z"),
                    "electionTerm" : NumberLong(6),
                    "lastCommittedOpTimeAtElection" : {
                            "ts" : Timestamp(0, 0),
                            "t" : NumberLong(-1)
                    },
                    "lastSeenOpTimeAtElection" : {
                            "ts" : Timestamp(1672992257, 1),
                            "t" : NumberLong(5)
                    },
                    "numVotesNeeded" : 1,
                    "priorityAtElection" : 1,
                    "electionTimeoutMillis" : NumberLong(10000),
                    "newTermStartDate" : ISODate("2023-01-06T08:19:54.552Z"),
                    "wMajorityWriteAvailabilityDate" : ISODate("2023-01-06T08:19:54.555Z")
            },
            "members" : [
                    {
                            "_id" : 0,
                            "name" : "localhost:27017",
                            "health" : 1,
                            "state" : 1,
                            "stateStr" : "PRIMARY",
                            "uptime" : 485,
                            "optime" : {
                                    "ts" : Timestamp(1672993194, 2),
                                    "t" : NumberLong(6)
                            },
                            "optimeDate" : ISODate("2023-01-06T08:19:54Z"),
                            "lastAppliedWallTime" : ISODate("2023-01-06T08:19:54.552Z"),
                            "lastDurableWallTime" : ISODate("2023-01-06T08:19:54.552Z"),
                            "syncSourceHost" : "",
                            "syncSourceId" : -1,
                            "infoMessage" : "Could not find member to sync from",
                            "electionTime" : Timestamp(1672993194, 1),
                            "electionDate" : ISODate("2023-01-06T08:19:54Z"),
                            "configVersion" : 112688,
                            "configTerm" : -1,
                            "self" : true,
                            "lastHeartbeatMessage" : ""
                    }
            ],
            "ok" : 1,
            "$clusterTime" : {
                    "clusterTime" : Timestamp(1672993194, 2),
                    "signature" : {
                            "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
                            "keyId" : NumberLong(0)
                    }
            },
            "operationTime" : Timestamp(1672993194, 2)
    }
    rs:PRIMARY> show dbs
    admin   0.000GB
    config  0.000GB
    db001   0.000GB
    local   0.000GB