关于mongodb版本升级问题

目录

• 一、背景
• 二、三个重点需要注意
• 三、环境
• 四、下载各个版本的mongodb包
• 五、下面介绍如何从3.0升级到3.4
• 总结

[yukw@mongodb1 mongodbwork3.4]$ wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-rhel62-3.4.4.tgz              ##下载版本为3.4.4[yukw@mongodb1 mongodbwork3.4]$ wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-rhel62-3.6.5.tgz				##下载版本为3.6.5

[yukw@mongodb1 mongodbwork3.4]$ mkdir /data/service/mongodbwork3.4[yukw@mongodb1 mongodbwork3.4]$ cp mongodb-linux-x86_64-rhel62-3.4.4.tgz /data/service/mongodbwork3.4/

[yukw@mongodb1 mongodbwork3.4]$ tar xf mongodb-linux-x86_64-rhel62-3.4.4.tgz[yukw@mongodb1 mongodbwork3.4]$ mv mongodb-linux-x86_64-rhel62-3.4.4 mongodb

[yukw@mongodb1 mongodbwork3.4]$ ps -ef |grep mongo |grep -v grep | awk '{print $2}' | xargs kill -2      ##每台机器都执行

[yukw@mongodb1 mongodbwork3.4] $/data/service/mongodbwork3.4/mongodb/bin/mongod -f /etc/mongodb1.conf     ##每台机器都执行，mongodb1.conf 为mongod1配置文件[yukw@mongodb1 mongodbwork3.4] $/data/service/mongodbwork3.4/mongodb/bin/mongod -f /etc/mongodb2.conf     ##每台机器都执行，mongodb2.conf 为mongod2配置文件[yukw@mongodb1 mongodbwork3.4] $/data/service/mongodbwork3.4/mongodb/bin/mongod -f /etc/mongodb3.conf     ##每台机器都执行，mongodb3.conf 为mongod3配置文件

[yukw@mongodb1 mongodbwork3.4]$ /data/service/mongodbwork3.4/mongodb/bin/mongo -port mongodb1_protconfigdb:PRIMARY> use adminswitched to db adminshard1:PRIMARY> db.auth("user_name","password")1configdb:PRIMARY> db.adminCommand( { setFeatureCompatibilityVersion: "3.4" } ){ "ok" : 1 }configdb:PRIMARY> db.adminCommand( { getParameter: 1, featureCompatibilityVersion: 1 } ){ "featureCompatibilityVersion" : "3.4", "ok" : 1 }###############上面primary机器已经升级到3.4，然后再到副本集机器验证##############[yukw@mongodb1 mongodbwork3.4]$ /data/service/mongodbwork3.4/mongodb/bin/mongo -port mongodb2_protconfigdb:PRIMARY> use adminswitched to db adminshard1:PRIMARY> db.auth("user_name","password")1configdb:PRIMARY> db.adminCommand( { setFeatureCompatibilityVersion: "3.4" } ){ "ok" : 1 }###############上面primary机器已经升级到3.4，然后再到副本集机器验证##############[yukw@mongodb1 mongodbwork3.4]$ /data/service/mongodbwork3.4/mongodb/bin/mongo -port mongodb3_protconfigdb:PRIMARY> use adminswitched to db adminshard1:PRIMARY> db.auth("user_name","password")1configdb:PRIMARY> db.adminCommand( { setFeatureCompatibilityVersion: "3.4" } ){ "ok" : 1 }###############上面primary机器已经升级到3.4，然后再到副本集机器验证##############

shard1:SECONDARY> use adminswitched to db adminshard1:SECONDARY> db.adminCommand( { getParameter: 1, featureCompatibilityVersion: 1 } ){ "featureCompatibilityVersion" : "3.4", "ok" : 1 }

[yukw@mongodb1 mongodbwork3.4]$ /data/service/mongodbwork3.4/mongodb/bin/mongod -f /etc/mongo_config.conf     ##三台机器均执行

[yukw@mongodb3 data]$ /data/service/mongodbwork3.4/mongodb/bin/mongo -port config_port> use adminswitched to db admin> configdb1={_id:'configdb',members:[{_id:0,host:'10.0.1.211:20000',priority:9},{_id:1,host:'10.0.1.209:20000',priority:5},{_id:2,host:'10.0.1.111:20000',priority:7}]}                             ## 配置副本集并设置权重>  rs.initiate(configdb1)     ##初始化配置

[yukw@mongodb1 data]$ /data/service/mongodbwork3.4/mongodb/bin/mongos -f /etc/mongo_mongos.conf   ##每台机器都执行

[yukw@mongodb1 data]$ /data/service/mongodbwork3.4/mongodb/bin/mongo -port 30000> use adminswitched to db admin>  var schema = db.system.version.findOne({"_id" : "authSchema"})> schema.currentVersion = 33> db.system.version.save(schema)WriteResult({ "nMatched" : 1, "nUpserted" : 0, "nModified" : 1 })