服务器之家：专注于服务器技术及软件下载分享
分类导航

Mysql|Sql Server|Oracle|Redis|MongoDB|PostgreSQL|Sqlite|DB2|mariadb|Access|数据库技术|

服务器之家 - 数据库 - MongoDB - MongoDB副本集调整节点

MongoDB副本集调整节点

2023-10-24 04:00未知服务器之家 MongoDB

MongoDB的副本集（Replica Set）是一个高可用性、可扩展性和冗余性的数据库解决方案。它能够确保数据库的高可用性，同时保障了数据的安全性。在本文中，我们将探讨如何在一个已经包含三个数据节点的副本集集群中，添加一个仲

MongoDB副本集调整节点

MongoDB的副本集（Replica Set）是一个高可用性、可扩展性和冗余性的数据库解决方案。它能够确保数据库的高可用性，同时保障了数据的安全性。在本文中，我们将探讨如何在一个已经包含三个数据节点的副本集集群中，添加一个仲裁节点，并同时删除原先的一个数据节点。

1、副本集的基本概念

MongoDB副本集由多个数据节点+若干个仲裁节点（可以没有）组成，其中一个数据节点被选举为主节点(Primary），其余节点为次要节点（Secondary）。在故障时，副本集会自动进行主节点的切换，确保服务的高可用性。副本集中的仲裁节点（Arbiter）不存储数据，仅用于选举过程，帮助副本集进行决策。

例如，当前配置一个3节点的数据节点集群，组件集群命令如下：

> use admin
> rs.initiate( {_id: "test1",members: [{ _id: 0, host: "192.168.122.36:27017" },{ _id: 1, host: "192.168.122.36:27018" },{ _id: 2, host: "192.168.122.36:27019" } ] })

MongoDB副本集调整节点

查看状态：

test1:PRIMARY> use admin
switched to db admin
test1:PRIMARY> rs.status()
{
        "set" : "test1",
        "date" : ISODate("2023-10-23T02:31:02.345Z"),
        "myState" : 1,
        "term" : NumberLong(1),
        "syncingTo" : "",
        "syncSourceHost" : "",
        "syncSourceId" : -1,
        "heartbeatIntervalMillis" : NumberLong(2000),
        "majorityVoteCount" : 2,
        "writeMajorityCount" : 2,
        "optimes" : {
                "lastCommittedOpTime" : {
                        "ts" : Timestamp(1698028254, 1),
                        "t" : NumberLong(1)
                },
                "lastCommittedWallTime" : ISODate("2023-10-23T02:30:54.919Z"),
                "readConcernMajorityOpTime" : {
                        "ts" : Timestamp(1698028254, 1),
                        "t" : NumberLong(1)
                },
                "readConcernMajorityWallTime" : ISODate("2023-10-23T02:30:54.919Z"),
                "appliedOpTime" : {
                        "ts" : Timestamp(1698028254, 1),
                        "t" : NumberLong(1)
                },
                "durableOpTime" : {
                        "ts" : Timestamp(1698028254, 1),
                        "t" : NumberLong(1)
                },
                "lastAppliedWallTime" : ISODate("2023-10-23T02:30:54.919Z"),
                "lastDurableWallTime" : ISODate("2023-10-23T02:30:54.919Z")
        },
        "lastStableRecoveryTimestamp" : Timestamp(1698028224, 3),
        "lastStableCheckpointTimestamp" : Timestamp(1698028224, 3),
        "electionCandidateMetrics" : {
                "lastElectionReason" : "electionTimeout",
                "lastElectionDate" : ISODate("2023-10-23T02:30:24.838Z"),
                "electionTerm" : NumberLong(1),
                "lastCommittedOpTimeAtElection" : {
                        "ts" : Timestamp(0, 0),
                        "t" : NumberLong(-1)
                },
                "lastSeenOpTimeAtElection" : {
                        "ts" : Timestamp(1698028214, 1),
                        "t" : NumberLong(-1)
                },
                "numVotesNeeded" : 2,
                "priorityAtElection" : 1,
                "electionTimeoutMillis" : NumberLong(10000),
                "numCatchUpOps" : NumberLong(0),
                "newTermStartDate" : ISODate("2023-10-23T02:30:24.912Z"),
                "wMajorityWriteAvailabilityDate" : ISODate("2023-10-23T02:30:25.497Z")
        },
        "members" : [
                {
                        "_id" : 0,
                        "name" : "192.168.122.36:27017",
                        "health" : 1,
                        "state" : 1,
                        "stateStr" : "PRIMARY",
                        "uptime" : 183,
                        "optime" : {
                                "ts" : Timestamp(1698028254, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2023-10-23T02:30:54Z"),
                        "syncingTo" : "",
                        "syncSourceHost" : "",
                        "syncSourceId" : -1,
                        "infoMessage" : "could not find member to sync from",
                        "electionTime" : Timestamp(1698028224, 1),
                        "electionDate" : ISODate("2023-10-23T02:30:24Z"),
                        "configVersion" : 1,
                        "self" : true,
                        "lastHeartbeatMessage" : ""
                },
                {
                        "_id" : 1,
                        "name" : "192.168.122.36:27018",
                        "health" : 1,
                        "state" : 2,
                        "stateStr" : "SECONDARY",
                        "uptime" : 47,
                        "optime" : {
                                "ts" : Timestamp(1698028254, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDurable" : {
                                "ts" : Timestamp(1698028254, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2023-10-23T02:30:54Z"),
                        "optimeDurableDate" : ISODate("2023-10-23T02:30:54Z"),
                        "lastHeartbeat" : ISODate("2023-10-23T02:31:00.889Z"),
                        "lastHeartbeatRecv" : ISODate("2023-10-23T02:31:01.443Z"),
                        "pingMs" : NumberLong(0),
                        "lastHeartbeatMessage" : "",
                        "syncingTo" : "192.168.122.36:27017",
                        "syncSourceHost" : "192.168.122.36:27017",
                        "syncSourceId" : 0,
                        "infoMessage" : "",
                        "configVersion" : 1
                },
                {
                        "_id" : 2,
                        "name" : "192.168.122.36:27019",
                        "health" : 1,
                        "state" : 2,
                        "stateStr" : "SECONDARY",
                        "uptime" : 47,
                        "optime" : {
                                "ts" : Timestamp(1698028254, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDurable" : {
                                "ts" : Timestamp(1698028254, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2023-10-23T02:30:54Z"),
                        "optimeDurableDate" : ISODate("2023-10-23T02:30:54Z"),
                        "lastHeartbeat" : ISODate("2023-10-23T02:31:00.890Z"),
                        "lastHeartbeatRecv" : ISODate("2023-10-23T02:31:01.446Z"),
                        "pingMs" : NumberLong(0),
                        "lastHeartbeatMessage" : "",
                        "syncingTo" : "192.168.122.36:27017",
                        "syncSourceHost" : "192.168.122.36:27017",
                        "syncSourceId" : 0,
                        "infoMessage" : "",
                        "configVersion" : 1
                }
        ],
        "ok" : 1,
        "$clusterTime" : {
                "clusterTime" : Timestamp(1698028254, 1),
                "signature" : {
                        "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
                        "keyId" : NumberLong(0)
                }
        },
        "operationTime" : Timestamp(1698028254, 1)
}

此时可以用一个程序验证集群的可用情况：

from pymongo import MongoClient
from pymongo.errors import ConnectionFailure


# MongoDB副本集的连接信息
replica_set = "test1"
mongo_host = ["192.168.122.36:27017", "192.168.122.36:27018", "192.168.122.36:27019"]  # 主机和端口号列表


# 尝试连接MongoDB副本集
try:
    client = MongoClient(mongo_host, replicaSet=replica_set, serverSelectinotallow=5000)
    db = client["testdb"]
    print("Successfully connected to MongoDB replica set.")
    collection = db['test1']
    data = {"b":2}
    result = collection.insert_one(data)




except ConnectionFailure:
    print("Failed to connect to MongoDB replica set. Please check your connection settings.")

运行结果如下：

MongoDB副本集调整节点

查看数据库中运行结果：

MongoDB副本集调整节点


2、添加节点

要添加一个仲裁节点，我们需要在现有副本集中的任一节点上执行如下操作：

rs.add( { host: "IP:PORT", arbiterOnly:true } )

执行这个命令后，MongoDB将会在副本集中添加一个仲裁节点，增加了选主的稳定性，同时不会增加数据存储的压力。具体实际案例如下

test1:PRIMARY> use  admin
switched to db admin
test1:PRIMARY> rs.add( { host: "192.168.122.36:27020", arbiterOnly:true } )
{
        "ok" : 1,
        "$clusterTime" : {
                "clusterTime" : Timestamp(1698030806, 1),
                "signature" : {
                        "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
                        "keyId" : NumberLong(0)
                }
        },
        "operationTime" : Timestamp(1698030806, 1)
}
test1:PRIMARY> rs.status();
{
        "set" : "test1",
        "date" : ISODate("2023-10-23T03:13:32.511Z"),
        "myState" : 1,
        "term" : NumberLong(1),
        "syncingTo" : "",
        "syncSourceHost" : "",
        "syncSourceId" : -1,
        "heartbeatIntervalMillis" : NumberLong(2000),
        "majorityVoteCount" : 3,
        "writeMajorityCount" : 3,
        "optimes" : {
                "lastCommittedOpTime" : {
                        "ts" : Timestamp(1698030806, 1),
                        "t" : NumberLong(1)
                },
                "lastCommittedWallTime" : ISODate("2023-10-23T03:13:26.379Z"),
                "readConcernMajorityOpTime" : {
                        "ts" : Timestamp(1698030806, 1),
                        "t" : NumberLong(1)
                },
                "readConcernMajorityWallTime" : ISODate("2023-10-23T03:13:26.379Z"),
                "appliedOpTime" : {
                        "ts" : Timestamp(1698030806, 1),
                        "t" : NumberLong(1)
                },
                "durableOpTime" : {
                        "ts" : Timestamp(1698030806, 1),
                        "t" : NumberLong(1)
                },
                "lastAppliedWallTime" : ISODate("2023-10-23T03:13:26.379Z"),
                "lastDurableWallTime" : ISODate("2023-10-23T03:13:26.379Z")
        },
        "lastStableRecoveryTimestamp" : Timestamp(1698030805, 1),
        "lastStableCheckpointTimestamp" : Timestamp(1698030805, 1),
        "electionCandidateMetrics" : {
                "lastElectionReason" : "electionTimeout",
                "lastElectionDate" : ISODate("2023-10-23T02:30:24.838Z"),
                "electionTerm" : NumberLong(1),
                "lastCommittedOpTimeAtElection" : {
                        "ts" : Timestamp(0, 0),
                        "t" : NumberLong(-1)
                },
                "lastSeenOpTimeAtElection" : {
                        "ts" : Timestamp(1698028214, 1),
                        "t" : NumberLong(-1)
                },
                "numVotesNeeded" : 2,
                "priorityAtElection" : 1,
                "electionTimeoutMillis" : NumberLong(10000),
                "numCatchUpOps" : NumberLong(0),
                "newTermStartDate" : ISODate("2023-10-23T02:30:24.912Z"),
                "wMajorityWriteAvailabilityDate" : ISODate("2023-10-23T02:30:25.497Z")
        },
        "members" : [
                {
                        "_id" : 0,
                        "name" : "192.168.122.36:27017",
                        "health" : 1,
                        "state" : 1,
                        "stateStr" : "PRIMARY",
                        "uptime" : 2733,
                        "optime" : {
                                "ts" : Timestamp(1698030806, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2023-10-23T03:13:26Z"),
                        "syncingTo" : "",
                        "syncSourceHost" : "",
                        "syncSourceId" : -1,
                        "infoMessage" : "",
                        "electionTime" : Timestamp(1698028224, 1),
                        "electionDate" : ISODate("2023-10-23T02:30:24Z"),
                        "configVersion" : 2,
                        "self" : true,
                        "lastHeartbeatMessage" : ""
                },
                {
                        "_id" : 1,
                        "name" : "192.168.122.36:27018",
                        "health" : 1,
                        "state" : 2,
                        "stateStr" : "SECONDARY",
                        "uptime" : 2597,
                        "optime" : {
                                "ts" : Timestamp(1698030806, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDurable" : {
                                "ts" : Timestamp(1698030806, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2023-10-23T03:13:26Z"),
                        "optimeDurableDate" : ISODate("2023-10-23T03:13:26Z"),
                        "lastHeartbeat" : ISODate("2023-10-23T03:13:32.393Z"),
                        "lastHeartbeatRecv" : ISODate("2023-10-23T03:13:32.420Z"),
                        "pingMs" : NumberLong(1),
                        "lastHeartbeatMessage" : "",
                        "syncingTo" : "",
                        "syncSourceHost" : "",
                        "syncSourceId" : -1,
                        "infoMessage" : "",
                        "configVersion" : 2
                },
                {
                        "_id" : 2,
                        "name" : "192.168.122.36:27019",
                        "health" : 1,
                        "state" : 2,
                        "stateStr" : "SECONDARY",
                        "uptime" : 2597,
                        "optime" : {
                                "ts" : Timestamp(1698030806, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDurable" : {
                                "ts" : Timestamp(1698030806, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2023-10-23T03:13:26Z"),
                        "optimeDurableDate" : ISODate("2023-10-23T03:13:26Z"),
                        "lastHeartbeat" : ISODate("2023-10-23T03:13:32.393Z"),
                        "lastHeartbeatRecv" : ISODate("2023-10-23T03:13:32.445Z"),
                        "pingMs" : NumberLong(1),
                        "lastHeartbeatMessage" : "",
                        "syncingTo" : "",
                        "syncSourceHost" : "",
                        "syncSourceId" : -1,
                        "infoMessage" : "",
                        "configVersion" : 2
                },
                {
                        "_id" : 3,
                        "name" : "192.168.122.36:27020",
                        "health" : 1,
                        "state" : 7,
                        "stateStr" : "ARBITER",
                        "uptime" : 6,
                        "lastHeartbeat" : ISODate("2023-10-23T03:13:32.405Z"),
                        "lastHeartbeatRecv" : ISODate("2023-10-23T03:13:32.455Z"),
                        "pingMs" : NumberLong(4),
                        "lastHeartbeatMessage" : "",
                        "syncingTo" : "",
                        "syncSourceHost" : "",
                        "syncSourceId" : -1,
                        "infoMessage" : "",
                        "configVersion" : 2
                }
        ],
        "ok" : 1,
        "$clusterTime" : {
                "clusterTime" : Timestamp(1698030806, 1),
                "signature" : {
                        "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
                        "keyId" : NumberLong(0)
                }
        },
        "operationTime" : Timestamp(1698030806, 1)
}

此时修改python中程序（插入的数据），运行结果如下：

MongoDB副本集调整节点


3、删除数据节点


如果你需要删除一个数据节点，首先，你要确保副本集的健康状态，然后执行如下操作来删除一个Secondary节点。

rs.remove("IP:PORT");

执行这个命令后，MongoDB将从副本集中移除该数据节点，副本集会重新进行选举，确保副本集的高可用性。

test1:PRIMARY> rs.remove("192.168.122.36:27019")
{
        "ok" : 1,
        "$clusterTime" : {
                "clusterTime" : Timestamp(1698038888, 1),
                "signature" : {
                        "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
                        "keyId" : NumberLong(0)
                }
        },
        "operationTime" : Timestamp(1698038888, 1)
}
test1:PRIMARY> rs.status
function() {
    return db._adminCommand("replSetGetStatus");  # 选举中
}
test1:PRIMARY> rs.status()
{
        "set" : "test1",
        "date" : ISODate("2023-10-23T05:28:15.398Z"),
        "myState" : 1,
        "term" : NumberLong(1),
        "syncingTo" : "",
        "syncSourceHost" : "",
        "syncSourceId" : -1,
        "heartbeatIntervalMillis" : NumberLong(2000),
        "majorityVoteCount" : 2,
        "writeMajorityCount" : 2,
        "optimes" : {
                "lastCommittedOpTime" : {
                        "ts" : Timestamp(1698038888, 1),
                        "t" : NumberLong(1)
                },
                "lastCommittedWallTime" : ISODate("2023-10-23T05:28:08.335Z"),
                "readConcernMajorityOpTime" : {
                        "ts" : Timestamp(1698038888, 1),
                        "t" : NumberLong(1)
                },
                "readConcernMajorityWallTime" : ISODate("2023-10-23T05:28:08.335Z"),
                "appliedOpTime" : {
                        "ts" : Timestamp(1698038888, 1),
                        "t" : NumberLong(1)
                },
                "durableOpTime" : {
                        "ts" : Timestamp(1698038888, 1),
                        "t" : NumberLong(1)
                },
                "lastAppliedWallTime" : ISODate("2023-10-23T05:28:08.335Z"),
                "lastDurableWallTime" : ISODate("2023-10-23T05:28:08.335Z")
        },
        "lastStableRecoveryTimestamp" : Timestamp(1698038845, 1),
        "lastStableCheckpointTimestamp" : Timestamp(1698038845, 1),
        "electionCandidateMetrics" : {
                "lastElectionReason" : "electionTimeout",
                "lastElectionDate" : ISODate("2023-10-23T02:30:24.838Z"),
                "electionTerm" : NumberLong(1),
                "lastCommittedOpTimeAtElection" : {
                        "ts" : Timestamp(0, 0),
                        "t" : NumberLong(-1)
                },
                "lastSeenOpTimeAtElection" : {
                        "ts" : Timestamp(1698028214, 1),
                        "t" : NumberLong(-1)
                },
                "numVotesNeeded" : 2,
                "priorityAtElection" : 1,
                "electionTimeoutMillis" : NumberLong(10000),
                "numCatchUpOps" : NumberLong(0),
                "newTermStartDate" : ISODate("2023-10-23T02:30:24.912Z"),
                "wMajorityWriteAvailabilityDate" : ISODate("2023-10-23T02:30:25.497Z")
        },
        "members" : [
                {
                        "_id" : 0,
                        "name" : "192.168.122.36:27017",
                        "health" : 1,
                        "state" : 1,
                        "stateStr" : "PRIMARY",
                        "uptime" : 10816,
                        "optime" : {
                                "ts" : Timestamp(1698038888, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2023-10-23T05:28:08Z"),
                        "syncingTo" : "",
                        "syncSourceHost" : "",
                        "syncSourceId" : -1,
                        "infoMessage" : "",
                        "electionTime" : Timestamp(1698028224, 1),
                        "electionDate" : ISODate("2023-10-23T02:30:24Z"),
                        "configVersion" : 3,
                        "self" : true,
                        "lastHeartbeatMessage" : ""
                },
                {
                        "_id" : 1,
                        "name" : "192.168.122.36:27018",
                        "health" : 1,
                        "state" : 2,
                        "stateStr" : "SECONDARY",
                        "uptime" : 10680,
                        "optime" : {
                                "ts" : Timestamp(1698038888, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDurable" : {
                                "ts" : Timestamp(1698038888, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2023-10-23T05:28:08Z"),
                        "optimeDurableDate" : ISODate("2023-10-23T05:28:08Z"),
                        "lastHeartbeat" : ISODate("2023-10-23T05:28:14.347Z"),
                        "lastHeartbeatRecv" : ISODate("2023-10-23T05:28:15.388Z"),
                        "pingMs" : NumberLong(1),
                        "lastHeartbeatMessage" : "",
                        "syncingTo" : "",
                        "syncSourceHost" : "",
                        "syncSourceId" : -1,
                        "infoMessage" : "",
                        "configVersion" : 3
                },
                {
                        "_id" : 3,
                        "name" : "192.168.122.36:27020",
                        "health" : 1,
                        "state" : 7,
                        "stateStr" : "ARBITER",
                        "uptime" : 8088,
                        "lastHeartbeat" : ISODate("2023-10-23T05:28:14.342Z"),
                        "lastHeartbeatRecv" : ISODate("2023-10-23T05:28:14.369Z"),
                        "pingMs" : NumberLong(0),
                        "lastHeartbeatMessage" : "",
                        "syncingTo" : "",
                        "syncSourceHost" : "",
                        "syncSourceId" : -1,
                        "infoMessage" : "",
                        "configVersion" : 3
                }
        ],
        "ok" : 1,
        "$clusterTime" : {
                "clusterTime" : Timestamp(1698038888, 1),
                "signature" : {
                        "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
                        "keyId" : NumberLong(0)
                }
        },
        "operationTime" : Timestamp(1698038888, 1)
}

注意：复制集将会短暂的关闭连接并进入选举，选举出一个新的主节点。接口将会自动重连。接口可能将会报错 DBClientCursor::init call() failed 。

延伸 · 阅读

精彩推荐
  • MongoDBMongodb实现定时备份与恢复的方法教程

    Mongodb实现定时备份与恢复的方法教程

    这篇文章主要给大家介绍了Mongodb实现定时备份与恢复的方法教程，文中通过示例代码介绍的非常详细，对大家具有一定的参考学习价值，需要的朋友们下面...

    chenjsh364522020-05-13
  • MongoDBMongoDB安装图文教程

    MongoDB安装图文教程

    这篇文章主要为大家详细介绍了MongoDB安装图文教程，分为两大部分为大家介绍下载MongoDB和安装MongoDB的方法，感兴趣的小伙伴们可以参考一下 ...

    Yangyi.He6132020-05-07
  • MongoDB分布式文档存储数据库之MongoDB分片集群的问题

    分布式文档存储数据库之MongoDB分片集群的问题

    这篇文章主要介绍了分布式文档存储数据库之MongoDB分片集群的问题，本文给大家介绍的非常详细，对大家的学习或工作具有一定的参考借鉴价值,需要的朋...

    Linux-18743072020-12-20
  • MongoDBMongoDB 内存使用情况分析

    MongoDB 内存使用情况分析

    都说 MongoDB 是个内存大户，但是怎么知道它到底用了多少内存呢...

    MongoDB教程网10002020-09-29
  • MongoDB迁移sqlserver数据到MongoDb的方法

    迁移sqlserver数据到MongoDb的方法

    这篇文章主要介绍了迁移sqlserver数据到MongoDb的方法,本文给大家介绍的非常详细，对大家的学习或工作具有一定的参考借鉴价值，需要的朋友可以参考下...

    听枫xl9682021-01-03
  • MongoDBmongodb基本命令实例小结

    mongodb基本命令实例小结

    这篇文章主要介绍了mongodb基本命令,结合实例形式总结分析了MongoDB数据库切换、查看、删除、查询等基本命令用法与操作注意事项,需要的朋友可以参考下...

    dawn-liu3652020-05-26
  • MongoDBMongoDB中javascript脚本编程简介和入门实例

    MongoDB中javascript脚本编程简介和入门实例

    作为一个数据库，MongoDB有一个很大的优势——它使用js管理数据库，所以也能够使用js脚本进行复杂的管理——这种方法非常灵活 ...

    MongoDB教程网6982020-04-24
  • MongoDBMongoDB凭什么跻身数据库排行前五

    MongoDB凭什么跻身数据库排行前五

    MongoDB以比去年同期超出65.96分的成绩继续雄踞榜单前五，这个增幅在全榜仅次于PostgreSQL的77.99，而其相对于4月份的6.10分的增长也是仅次于微软SQL Server排名...

    孙浩峰3892020-05-22
最近更新
编辑推荐
阅读排行
热门标签
28663 　 数据库删除 　 db.serverStatus 　 分片技术 　 MongoDB教程 　 MongoDB安装图解 　 MongoDB安装教程 　 MongoDB入门教程 　 PHP驱动 　 修改用户密码 　 自定义连接池 　 replica 　 mongodb导入 　 mongodb导出 　 mongodb还原 　 mongodb备份 　 整库备份 　 数据库切换 　 数据库创建 　 cgroup 　 循环遍历 　 数据库游标 　 NumberInt32 　 添加管理员 　 安全设置命令 　 php分页类 　 编程模型 　 脚本编程 　 mongodb条件查询 　 mongodb数组查询 　
© 2019-2025 服务器之家(www.zzvips.com) 版权所有关于我们联系我们版权申明网站地图