mongodb升级详细教程 - 3.2~4.4

àì夳堔傛蜴生んèń 2022-12-15 12:41 613阅读 0赞

mongodb的稳定版本全部为偶数，例如：4.0、4.2

mongoDB的升级必须是相邻版本升级，不能跳版本升级。例如：3.2->3.4->3.6，不能3.2直接升级3.6，这是因为相邻版本会有兼容，如果跳版本升级很容易出问题。

# 下载mongodb程序 #

请到[官网][Link 1]下载各个版本的程序包

# 解压 #

tar -xf mongodb-linux-x86_64-3.4.24.tgz

# 配置文件 #

mongodb启动配置文件属性说明

# 数据文件位置
    dbpath = /opt/module/mongoData
    
    # 日志文件位置
    logpath = /opt/module/mongoLog/mongodb.log
    
    # 以追加方式写入日志，true为追加。false是覆盖
    logappend = true
    
    # 日志输出都发送到主机的syslog系统，而不是标准输出到logpath指定日志文件。syslog和logpath不能一起用，会报错：Cant use both a logpath and syslog
    # syslog = true
    
    #绑定地址。默认127.0.0.1，只能通过本地连接。进程绑定和监听来自这个地址上的应用连接。要是需要给其他服务器连接，则需要注释掉这个或则 把IP改成本机地址，
    # 如192.168.200.201[其他服务器用 mongo --host=192.168.200.201 连接] ，可以用一个逗号分隔的列表绑定多个IP地址。
    bind_ip = 192.168.1.10
    # 默认端口27017
    port = 27017
    
    # 是否后台运行，设置为true 启动 进程在后台运行的守护进程模式。默认false。
    fork = true
    
    # 安静模式。这个选项可以过滤掉一些无用的日志信息，若需要调试使用请设置为false
    quiet = false
    
    # 启用日志文件，默认启用
    journal = true

# 停止正在运行的mongodb #

[root@KELL ~]# kill 26181;

# 启动新版本的mongodb #

[root@localhost bin]# ./mongod -f /home/mongodb/mongo.conf 
    about to fork child process, waiting until server is ready for connections.
    forked process: 628
    child process started successfully, parent exiting

# 命令行连接mongodb #

[root@localhost bin]# ./mongo 192.168.1.10
    MongoDB shell version v3.4.24
    connecting to: mongodb://192.168.1.10:27017/test
    MongoDB server version: 3.4.24
    Server has startup warnings: 
    2020-10-16T16:58:42.836+0800 I CONTROL  [initandlisten] 
    2020-10-16T16:58:42.838+0800 I CONTROL  [initandlisten] ** WARNING: Access control is not enabled for the database.
    2020-10-16T16:58:42.838+0800 I CONTROL  [initandlisten] **          Read and write access to data and configuration is unrestricted.
    2020-10-16T16:58:42.838+0800 I CONTROL  [initandlisten] ** WARNING: You are running this process as the root user, which is not recommended.
    2020-10-16T16:58:42.838+0800 I CONTROL  [initandlisten] 
    2020-10-16T16:58:42.838+0800 I CONTROL  [initandlisten] 
    2020-10-16T16:58:42.838+0800 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.
    2020-10-16T16:58:42.838+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
    2020-10-16T16:58:42.838+0800 I CONTROL  [initandlisten] 
    2020-10-16T16:58:42.838+0800 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
    2020-10-16T16:58:42.838+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
    2020-10-16T16:58:42.838+0800 I CONTROL  [initandlisten] 
    >

# 更新新版本数据文件： #

> db.adminCommand( {  getParameter: 1, featureCompatibilityVersion: 1 } )
    {  "featureCompatibilityVersion" : "3.2", "ok" : 1 } #查看兼容性版本
    > db.adminCommand( {  setFeatureCompatibilityVersion: "3.4" } )  #修改兼容性版本
    {  "ok" : 1 }
    > db.adminCommand( {  getParameter: 1, featureCompatibilityVersion: 1 } )
    {  "featureCompatibilityVersion" : "3.4", "ok" : 1 }

# 重复执行上面的步骤到最新版本 #

包括下载、解压、运行新版本的程序。

下面是每个包运行后最后一步的输出：

> db.adminCommand( {  getParameter: 1, featureCompatibilityVersion: 1 } )
    {  "featureCompatibilityVersion" : {  "version" : "3.4" }, "ok" : 1 }
    > db.adminCommand( {  setFeatureCompatibilityVersion: "3.6" } ) 
    {  "ok" : 1 }
    > db.adminCommand( {  getParameter: 1, featureCompatibilityVersion: 1 } )
    {  "featureCompatibilityVersion" : {  "version" : "3.6" }, "ok" : 1 }

> db.adminCommand( {  getParameter: 1, featureCompatibilityVersion: 1 } )
    {  "featureCompatibilityVersion" : {  "version" : "3.6" }, "ok" : 1 }
    > db.adminCommand( {  setFeatureCompatibilityVersion: "4.0" } )
    {  "ok" : 1 }
    > db.adminCommand( {  getParameter: 1, featureCompatibilityVersion: 1 } )
    {  "featureCompatibilityVersion" : {  "version" : "4.0" }, "ok" : 1 }

> db.adminCommand( {  getParameter: 1, featureCompatibilityVersion: 1 } )
    {  "featureCompatibilityVersion" : {  "version" : "4.0" }, "ok" : 1 }
    > db.adminCommand( {  setFeatureCompatibilityVersion: "4.2" } )
    {  "ok" : 1 }
    > db.adminCommand( {  getParameter: 1, featureCompatibilityVersion: 1 } )
    {  "featureCompatibilityVersion" : {  "version" : "4.2" }, "ok" : 1 }

> db.adminCommand( {  getParameter: 1, featureCompatibilityVersion: 1 } )
    {  "featureCompatibilityVersion" : {  "version" : "4.2" }, "ok" : 1 }
    > db.adminCommand( {  setFeatureCompatibilityVersion: "4.4" } )
    {  "ok" : 1 }
    > db.adminCommand( {  getParameter: 1, featureCompatibilityVersion: 1 } )
    {  "featureCompatibilityVersion" : {  "version" : "4.4" }, "ok" : 1 }

完成

[Link 1]: https://www.mongodb.com/try/download/community