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[经验分享] mongodb2.6.7升级3.03

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rgar12
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发表于 2015-5-25 11:00:15 | 显示全部楼层 |阅读模式
MongoDB 3.0于2015年3月3日正式发布。可以毫不夸张的说，该版本的新增特性标志着MongoDB这款典型的NoSQL数据库已经进入了一个全新的发展阶段。
3.0版本的新增特性：
   插件式存储引擎API
   WiredTiger存储引擎
   MMAPv1存储引擎提升
   复制集改进
   分片集群改进

由于使用到3.0新增的功能，我们决定升级mongodb-3.0.3

本地测试
IP：192.168.5.66  
系统版本:Centos6.5_64-2.6.32  
Mongodb版本：
mongodb-linux-x86_64-2.6.7.tgz
mongodb-linux-x86_64-3.0.3.gz



测试机一台启动不同端口  一个mongos  一个configdb  两个分片  2个仲裁节点


端口分配：
分片1：
shard1（副本集）：192.168.5.66:27001
shard11（主）：192.168.5.66:27011
arbiter1(权重)：192.168.5.66:27000

分片2:
shard2(副本集):192.168.5.66:27002
shaed22（主）:192.168.5.66:27022
arbiter2(权重):192.168.5.66:27222
mongos:192.168.5.66:27111
configdb:192.168.5.66:27100

2．配置mongodb-2.6.7集群分片1主库：

/usr/local/mongodb-2.6.7/bin/mongod -f /usr/local/mongodb-2.6.7/conf/shard11.conf
[iyunv@ztest ~]# cat /usr/local/mongodb-2.6.7/conf/shard11.conf
logpath = /data/logs/shard11.log
logappend = true
pidfilepath = /data/mdb/shard11/shard1.pid
dbpath = /data/mdb/shard11/data
directoryperdb = true
replSet = replset1
rest = true
oplogSize = 1024
fork = true
shardsvr = true
port = 27011
journal = true

分片1副本集：
/usr/local/mongodb-2.6.7/bin/mongod -f /usr/local/mongodb-2.6.7/conf/shard1.conf
[iyunv@ztest ~]# cat /usr/local/mongodb-2.6.7/conf/shard1.conf
logpath = /data/logs/shard1.log
logappend = true
pidfilepath = /data/mdb/shard1/shard1.pid
dbpath = /data/mdb/shard1/data
directoryperdb = true
replSet = replset1
rest = true
oplogSize = 1024
fork = true
shardsvr = true
port = 27001
journal = true



分片1仲裁：
/usr/local/mongodb-2.6.7/bin/mongod -f /usr/local/mongodb-2.6.7/conf/arbiter1.conf
[iyunv@ztest ~]# cat /usr/local/mongodb-2.6.7/conf/arbiter1.conf
logpath = /data/logs/arbiter1.log
logappend = true
pidfilepath = /data/mdb/arbiter1/arbiter1.pid
dbpath = /data/mdb/arbiter1/data
directoryperdb = true
replSet = replset1
rest = true
oplogSize = 1024
fork = true
shardsvr = true
port = 27000
journal = true


分片2主库：
/usr/local/mongodb-2.6.7/bin/mongod -f /usr/local/mongodb-2.6.7/conf/shard22.conf  

[iyunv@ztest ~]# cat /usr/local/mongodb-2.6.7/conf/shard22.conf
logpath = /data/logs/shard22.log
logappend = true
pidfilepath = /data/mdb/shard22/shard22.pid
dbpath = /data/mdb/shard22/data
directoryperdb = true
replSet = replset2
rest = true
oplogSize = 1024
fork = true
shardsvr = true
port = 27022
journal = true


分片2副本集：  

/usr/local/mongodb-2.6.7/bin/mongod -f /usr/local/mongodb-2.6.7/conf/shard2.conf
[iyunv@ztest ~]# cat /usr/local/mongodb-2.6.7/conf/shard2.conf
logpath = /data/logs/shard2.log
logappend = true
pidfilepath = /data/mdb/shard2/shard2.pid
dbpath = /data/mdb/shard2/data
directoryperdb = true
replSet = replset2
rest = true
oplogSize = 1024
fork = true
shardsvr = true
port = 27002
journal = true



分片2仲裁：  

/usr/local/mongodb-2.6.7/bin/mongod -f /usr/local/mongodb-2.6.7/conf/arbiter2.conf

[iyunv@ztest ~]# cat /usr/local/mongodb-2.6.7/conf/arbiter2.conf
logpath = /data/logs/arbiter2.log
logappend = true
pidfilepath = /data/mdb/arbiter2/arbiter1.pid
dbpath = /data/mdb/arbiter2/data
directoryperdb = true
replSet = replset2
rest = true
oplogSize = 1024
fork = true
shardsvr = true
port = 27222
journal = true



configdb：
/usr/local/mongodb-2.6.7/bin/mongod -f /usr/local/mongodb-2.6.7/conf/configdb.conf
[iyunv@ztest ~]# cat /usr/local/mongodb-2.6.7/conf/configdb.conf
logpath = /data/logs/configdb.log
logappend = true
pidfilepath = /data/mdb/configdb/config.pid
dbpath = /data/mdb/configdb/data
fork = true
port = 27100
oplogSize = 2048
configsvr = true



mongos:
/usr/local/mongodb-2.6.7/bin/mongos -f /usr/local/mongodb-2.6.7/conf/mongos.conf
[iyunv@ztest ~]# cat /usr/local/mongodb-2.6.7/conf/mongos.conf
logpath = /data/logs/mongos.log
logappend = true
fork = true
port = 27111
configdb = 192.168.5.66:27100







分片配置：
     分片1：/usr/local/mongodb-2.6.7/bin/mongo 192.168.5.66:27011
config = {_id:"replset1", members:[
                   {_id:0,host:"192.168.5.66:27001",priority:4},
                   {_id:1,host:"192.168.5.66:27011",priority:5},
                   {_id:2,host:"192.168.5.66:27000",arbiterOnly:true},
                    
        }
rs.initiate(config); //更新配置
rs.status()          //查看配置信息
分片2：/usr/local/mongodb-2.6.7/bin/mongo 192.168.5.66:27022
config = {_id:"replset2", members:[
                   {_id:0,host:"192.168.5.66:27002",priority:4},
                   {_id:1,host:"192.168.5.66:27022",priority:5},
                    {_id:2,host:"192.168.5.66:27222",arbiterOnly:true},
                    
        }
rs.initiate(config);  //更新配置
rs.status()          //查看配置信息
mongos添加路由信息：/usr/local/mongodb-2.6.7/bin/mongo 192.168.5.66:27111/admin
目前搭建了mongodb配置服务器、路由服务器，各个分片服务器，不过应用程序连接到 mongos 路由服务器并不能使用分片机制，还需要在程序里设置分片配置，让分片生效。
#串联路由服务器与分配副本集1
db.runCommand({addshard :"replset1/192.168.5.66:27001,192.168.5.66:27011"});

#串联路由服务器与分配副本集1
db.runCommand({addshard :"replset2/192.168.5.66:27002,192.168.5.66:27022"});
use admin
printShardingStatus()          //查看分片信息

3．手动添加数据：/usr/local/mongodb-2.6.7/bin/mongo 192.168.5.66:27111/admin
use testapm
for (var i= 1; i <= 20; i++)db.haha.save({tid:i,name:"username"+i,age:i});
for (var i= 1; i <= 10; i++)db.table1.save({tid:i,name:"username"+i,age:i});
for (var i= 1; i <= 15; i++)db.table2.save({tid:i,name:"username"+i,age:i});
use crash
for (var i= 1; i <= 15; i++)db.tab1.save({tid:i,name:"username"+i,age:i});
for (var i= 1; i <= 15; i++)db.tab2.save({tid:i,name:"username"+i,age:i});
for (var i= 1; i <= 15; i++)db.table3.save({tid:i,name:"username"+i,age:i});
4．开始升级mongos和configdb先升级 拷贝配置文件：
cp /usr/local/mongodb-2.6.7/conf/* /usr/local/mongodb-3.0.3/conf/


mongodb3.0.3的数据目录和2.6.7数据目录分开
创建新的数据目录：
mkdir /data/mdb2/{shard1,configdb,shard11,shard2,shard22,arbiter1,arbiter2}/data -p

需要修改3.0.3版本配置文件，修改数据存储路径：
configdb.conf  ==》   dbpath = /data/mdb2/configdb/data
shard1.conf   ==》  dbpath = /data/mdb2/shard1/data   storageEngine=wiredTiger //添加新的数据引擎
shard11.conf   ==》  dbpath = /data/mdb2/shard11/data   storageEngine=wiredTiger //添加新的数据引擎
shard2.conf   ==》  dbpath = /data/mdb2/shard2/data   storageEngine=wiredTiger //添加新的数据引擎
shard22.conf   ==》  dbpath = /data/mdb2/shard22/data   storageEngine=wiredTiger //添加新的数据引擎
arbiter1.conf  ==》  dbpath = /data/mdb2/arbiter1/data   storageEngine=wiredTiger //添加新的数据引擎
arbiter2.conf  ==》  dbpath = /data/mdb2/arbiter2/data   storageEngine=wiredTiger //添加新的数据引擎



首先备份configdb数据库：
/usr/local/mongodb-2.6.7/bin/mongodump -h192.168.5.66:27100 -o 2.6.7conf


然后停掉configdb
启动3.0.3 configdb：
/usr/local/mongodb-3.0.3/bin/mongod -f /usr/local/mongodb-3.0.3/conf/configdb.conf


mongos停掉然后执行
/usr/local/mongodb-3.0.3/bin/mongos -f/usr/local/mongodb-3.0.3/conf/mongos.conf  --upgrade

启动mongos3.0.3：
/usr/local/mongodb-3.0.3/bin/mongos -f/usr/local/mongodb-3.0.3/conf/mongos.conf

configdb导入数据：/usr/local/mongodb-3.0.3/bin/mongorestore -h192.168.5.66:27100 --dir /root/2.6.7conf/
Configdb和mongos3.0.3升级完成

5.数据库升级3.0.3
a.将2.6.7版的分片1主库停掉，2.6.7版本从库自动升级为主库，启动配置为3.0.3版本新的数据引擎, 启动以后开始复制数据数据复制完以后接管主库。
连接3.0.3版本分片1主库查看：
[iyunv@ztest data]#/usr/local/mongodb-3.0.3/bin/mongo 192.168.5.66:27011
MongoDB shell version: 3.0.3
connecting to: 192.168.5.66:27011/test
Server has startup warnings:
2015-05-20T21:11:16.919+0800 I CONTROL  ** WARNING: --rest is specified without--httpinterface,
2015-05-20T21:11:16.920+0800 I CONTROL  **         enabling http interface
2015-05-20T21:11:17.469+0800 I CONTROL  [initandlisten] ** WARNING: You are runningthis process as the root user, which is not recommended.
2015-05-20T21:11:17.469+0800 I CONTROL  [initandlisten]
2015-05-20T21:11:17.470+0800 I CONTROL  [initandlisten]
2015-05-20T21:11:17.470+0800 I CONTROL  [initandlisten] ** WARNING:/sys/kernel/mm/transparent_hugepage/enabled is 'always'.
2015-05-20T21:11:17.470+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2015-05-20T21:11:17.470+0800 I CONTROL  [initandlisten]
2015-05-20T21:11:17.470+0800 I CONTROL  [initandlisten] ** WARNING:/sys/kernel/mm/transparent_hugepage/defrag is 'always'.
2015-05-20T21:11:17.470+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2015-05-20T21:11:17.470+0800 I CONTROL  [initandlisten]
replset1:PRIMARY> show dbs
local    0.000GB
testapm  0.000GB
replset1:PRIMARY> use testapm
switched to db testapm
replset1:PRIMARY> show collections
haha
table1
table2
replset1:PRIMARY> db.haha.find()
{ "_id" :ObjectId("555c858d9252c900b8cdeadc"), "tid" : 1,"name" : "username1", "age" : 1 }
{ "_id" :ObjectId("555c858e9252c900b8cdeadd"), "tid" : 2,"name" : "username2", "age" : 2 }
{ "_id" : ObjectId("555c858e9252c900b8cdeade"),"tid" : 3, "name" : "username3", "age": 3 }
{ "_id" :ObjectId("555c858e9252c900b8cdeadf"), "tid" : 4,"name" : "username4", "age" : 4 }
{ "_id" :ObjectId("555c858e9252c900b8cdeae0"), "tid" : 5,"name" : "username5", "age" : 5 }
{ "_id" : ObjectId("555c858e9252c900b8cdeae1"),"tid" : 6, "name" : "username6", "age": 6 }
{ "_id" :ObjectId("555c858e9252c900b8cdeae2"), "tid" : 7,"name" : "username7", "age" : 7 }
{ "_id" :ObjectId("555c858e9252c900b8cdeae3"), "tid" : 8,"name" : "username8", "age" : 8 }
{ "_id" :ObjectId("555c858e9252c900b8cdeae4"), "tid" : 9,"name" : "username9", "age" : 9 }
{ "_id" :ObjectId("555c858e9252c900b8cdeae5"), "tid" : 10,"name" : "username10", "age" : 10 }
{ "_id" :ObjectId("555c858e9252c900b8cdeae6"), "tid" : 11,"name" : "username11", "age" : 11 }
{ "_id" :ObjectId("555c858e9252c900b8cdeae7"), "tid" : 12,"name" : "username12", "age" : 12 }
{ "_id" :ObjectId("555c858e9252c900b8cdeae8"), "tid" : 13,"name" : "username13", "age" : 13 }
{ "_id" : ObjectId("555c858e9252c900b8cdeae9"),"tid" : 14, "name" : "username14","age" : 14 }
{ "_id" :ObjectId("555c858e9252c900b8cdeaea"), "tid" : 15,"name" : "username15", "age" : 15 }
{ "_id" :ObjectId("555c858e9252c900b8cdeaeb"), "tid" : 16,"name" : "username16", "age" : 16 }
{ "_id" :ObjectId("555c858e9252c900b8cdeaec"), "tid" : 17,"name" : "username17", "age" : 17 }
{ "_id" :ObjectId("555c858e9252c900b8cdeaed"), "tid" : 18,"name" : "username18", "age" : 18 }
{ "_id" :ObjectId("555c858e9252c900b8cdeaee"), "tid" : 19,"name" : "username19", "age" : 19 }
{ "_id" :ObjectId("555c858e9252c900b8cdeaef"), "tid" : 20,"name" : "username20", "age" : 20 }
replset1:PRIMARY> db.table1.find()
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf0"), "tid" : 1,"name" : "username1", "age" : 1 }
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf1"), "tid" : 2,"name" : "username2", "age" : 2 }
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf2"), "tid" : 3,"name" : "username3", "age" : 3 }
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf3"), "tid" : 4,"name" : "username4", "age" : 4 }
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf4"), "tid" : 5,"name" : "username5", "age" : 5 }
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf5"), "tid" : 6,"name" : "username6", "age" : 6 }
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf6"), "tid" : 7,"name" : "username7", "age" : 7 }
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf7"), "tid" : 8,"name" : "username8", "age" : 8 }
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf8"), "tid" : 9,"name" : "username9", "age" : 9 }
{ "_id" : ObjectId("555c85ac9252c900b8cdeaf9"),"tid" : 10, "name" : "username10","age" : 10 }
replset1:PRIMARY> db.table2.find()
{ "_id" :ObjectId("555c85b99252c900b8cdeafa"), "tid" : 1,"name" : "username1", "age" : 1 }
{ "_id" :ObjectId("555c85b99252c900b8cdeafb"), "tid" : 2,"name" : "username2", "age" : 2 }
{ "_id" :ObjectId("555c85b99252c900b8cdeafc"), "tid" : 3,"name" : "username3", "age" : 3 }
{ "_id" :ObjectId("555c85b99252c900b8cdeafd"), "tid" : 4,"name" : "username4", "age" : 4 }
{ "_id" : ObjectId("555c85b99252c900b8cdeafe"),"tid" : 5, "name" : "username5", "age": 5 }
{ "_id" :ObjectId("555c85b99252c900b8cdeaff"), "tid" : 6,"name" : "username6", "age" : 6 }
{ "_id" :ObjectId("555c85b99252c900b8cdeb00"), "tid" : 7,"name" : "username7", "age" : 7 }
{ "_id" :ObjectId("555c85b99252c900b8cdeb01"), "tid" : 8,"name" : "username8", "age" : 8 }
{ "_id" :ObjectId("555c85b99252c900b8cdeb02"), "tid" : 9,"name" : "username9", "age" : 9 }
{ "_id" :ObjectId("555c85b99252c900b8cdeb03"), "tid" : 10,"name" : "username10", "age" : 10 }
{ "_id" :ObjectId("555c85b99252c900b8cdeb04"), "tid" : 11,"name" : "username11", "age" : 11 }
{ "_id" :ObjectId("555c85b99252c900b8cdeb05"), "tid" : 12,"name" : "username12", "age" : 12 }
{ "_id" : ObjectId("555c85b99252c900b8cdeb06"),"tid" : 13, "name" : "username13","age" : 13 }
{ "_id" :ObjectId("555c85b99252c900b8cdeb07"), "tid" : 14,"name" : "username14", "age" : 14 }
{ "_id" :ObjectId("555c85b99252c900b8cdeb08"), "tid" : 15,"name" : "username15", "age" : 15 }
replset1:PRIMARY>

b.停掉2.6.7版本从库，配置3.0.3版本新数据引擎启动。
[iyunv@ztest data]#/usr/local/mongodb-3.0.3/bin/mongo 192.168.5.66:27001
MongoDB shell version: 3.0.3
connecting to: 192.168.5.66:27001/test
Server has startup warnings:
2015-05-20T21:32:18.322+0800 I CONTROL  ** WARNING: --rest is specified without--httpinterface,
2015-05-20T21:32:18.322+0800 I CONTROL  **         enabling http interface
2015-05-20T21:32:18.888+0800 I CONTROL  [initandlisten] ** WARNING: You are runningthis process as the root user, which is not recommended.
2015-05-20T21:32:18.888+0800 I CONTROL  [initandlisten]
2015-05-20T21:32:18.888+0800 I CONTROL  [initandlisten]
2015-05-20T21:32:18.888+0800 I CONTROL  [initandlisten] ** WARNING:/sys/kernel/mm/transparent_hugepage/enabled is 'always'.
2015-05-20T21:32:18.888+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2015-05-20T21:32:18.889+0800 I CONTROL  [initandlisten]
2015-05-20T21:32:18.889+0800 I CONTROL  [initandlisten] ** WARNING:/sys/kernel/mm/transparent_hugepage/defrag is 'always'.
2015-05-20T21:32:18.889+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2015-05-20T21:32:18.889+0800 I CONTROL  [initandlisten]
replset1:STARTUP2>
replset1:SECONDARY>
replset1:SECONDARY>
replset1:SECONDARY>
replset1:SECONDARY>
replset1:SECONDARY>show dbs
2015-05-20T21:32:56.364+0800 E QUERY    Error: listDatabases failed:{"note" : "from execCommand", "ok" : 0,"errmsg" : "not master" }      //当在从节点查看数据时  会报错
对于replica set 中的secondary 节点默认是不可读的，
在各个从节点  执行  db.getMongo().setSlaveOk();    这个就行了

    at Error(<anonymous>)
    atMongo.getDBs (src/mongo/shell/mongo.js:47:15)
    atshellHelper.show (src/mongo/shell/utils.js:630:33)
    atshellHelper (src/mongo/shell/utils.js:524:36)
    at (shellhelp2):1:1at src/mongo/shell/mongo.js:47
replset1:SECONDARY>db.getMongo().setSlaveOk();
replset1:SECONDARY> show dbs
local    0.000GB
testapm  0.000GB
replset1:SECONDARY>use testapm
switched to db testapm
replset1:SECONDARY>show collections
haha
table1
table2
replset1:SECONDARY>db.table1.find()
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf0"), "tid" : 1,"name" : "username1", "age" : 1 }
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf1"), "tid" : 2,"name" : "username2", "age" : 2 }
{ "_id" : ObjectId("555c85ac9252c900b8cdeaf2"),"tid" : 3, "name" : "username3", "age": 3 }
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf3"), "tid" : 4,"name" : "username4", "age" : 4 }
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf4"), "tid" : 5,"name" : "username5", "age" : 5 }
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf5"), "tid" : 6,"name" : "username6", "age" : 6 }
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf6"), "tid" : 7,"name" : "username7", "age" : 7 }
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf7"), "tid" : 8,"name" : "username8", "age" : 8 }
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf8"), "tid" : 9,"name" : "username9", "age" : 9 }
{ "_id" :ObjectId("555c85ac9252c900b8cdeaf9"), "tid" : 10,"name" : "username10", "age" : 10 }
replset1:SECONDARY>
c.升级2.6.7仲裁节点arbiter1和2.6.7分片2步骤和上边一样不在描述

6.不同版本数据size变化

mongo-2.6.7版本数据：

wKiom1Ve1VyS2iFMAAVLJCNWinI839.jpg


mongo-3.0.3版本数据：
wKioL1Ve1taQAwAAAAYa2LwRAjw771.jpg

总结：**注意最终还是需要停mongos和configdb（mongos和configdb也需要升级，停止几分钟即可）**
Mongo-2.6.7数据升级（导入）为Mongo-3.0.3。数据显示要比老版本少，不确定是不是新的引擎数据有压缩。

注意：该环境为测试环境测试，仅供参考。
线上环境升级请在测试环境模拟线上测试，在确认没有问题，再在线上实施。




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