21.38 mongodb分片搭建（中）

21.38 mongodb分片搭建（中）

分片搭建–分片配置
添加配置文件shard1.conf(三台机器都操做)

vim /etc/mongod/shard1.conf //加入以下内容
pidfilepath = /var/run/mongodb/shard1.pid
dbpath = /data/mongodb/shard1/data
logpath = /data/mongodb/shard1/log/shard1.log
logappend = true
bind_ip = 0.0.0.0   ##生产环境，最好设为绑定ip本机；由于咱们没有设密码
port = 27001
fork = true
httpinterface=true #打开web监控
rest=true
replSet=shard1 #副本集名称
shardsvr = true #declare this is a shard db of a cluster;
maxConns=20000 #设置最大链接数

添加配置文件shard2.conf(三台机器都操做)

vim /etc/mongod/shard2.conf //加入以下内容
pidfilepath = /var/run/mongodb/shard2.pid
dbpath = /data/mongodb/shard2/data
logpath = /data/mongodb/shard2/log/shard2.log
logappend = true
bind_ip = 0.0.0.0
port = 27002
fork = true
httpinterface=true #打开web监控
rest=true
replSet=shard2 #副本集名称
shardsvr = true #declare this is a shard db of a cluster;
maxConns=20000 #设置最大链接数

添加配置文件shard3.conf(三台机器都操做)

vim /etc/mongod/shard3.conf //加入以下内容
pidfilepath = /var/run/mongodb/shard3.pid
dbpath = /data/mongodb/shard3/data
logpath = /data/mongodb/shard3/log/shard3.log
logappend = true
bind_ip = 0.0.0.0
port = 27003
fork = true
httpinterface=true #打开web监控
rest=true
replSet=shard3 #副本集名称
shardsvr = true #declare this is a shard db of a cluster;
maxConns=20000 #设置最大链接数

启动shard1

mongod -f /etc/mongod/shard1.conf //三台机器都要操做
 登陆130或者132任何一台机器的27001端口初始化副本集，133之因此不行，是由于shard1咱们把133这台机器的27001端口做为了仲裁节点
 mongo --port 27001
 use admin
 config = { _id: "shard1", members: [ {_id : 0, host : "192.168.133.130:27001"}, {_id: 1,host : "192.168.133.132:27001"},{_id : 2, host : "192.168.133.133:27001",arbiterOnly:true}] }
 rs.initiate(config)

启动shard2

mongod -f /etc/mongod/shard2.conf //三台机器都要操做
 登陆132或者133任何一台机器的27002端口初始化副本集，130之因此不行，是由于shard2咱们把130这台机器的27002端口做为了仲裁节点
 mongo --port 27002
 use admin
 config = { _id: "shard2", members: [ {_id : 0, host : "192.168.133.130:27002" ,arbiterOnly:true},{_id : 1, host : "192.168.133.132:27002"},{_id : 2, host : "192.168.133.133:27002"}] }
 rs.initiate(config)

启动shard3

mongod -f /etc/mongod/shard3.conf //三台机器都要操做
 登陆130或者133任何一台机器的27003端口初始化副本集，132之因此不行，是由于shard3咱们把132这台机器的27003端口做为了仲裁节点
 mongo --port 27003
 use admin
 config = { _id: "shard3", members: [ {_id : 0, host : "192.168.133.130:27003"},  {_id : 1, host : "192.168.133.132:27003", arbiterOnly:true}, {_id : 2, host : "192.168.133.133:27003"}] }
 rs.initiate(config)

完成了副本集shard一、二、3的操做以后，接下来就是配置路由服务器；

21.39 mongodb分片搭建（下）

分片搭建–配置路由服务器

• 添加配置文件(三台机器都操做)
• vim /etc/mongod/mongos.conf //加入以下内容
  pidfilepath = /var/run/mongodb/mongos.pid
  logpath = /data/mongodb/mongos/log/mongos.log
  logappend = true
  bind_ip = 0.0.0.0
  port = 20000
  fork = true
  configdb = configs/192.168.133.130:21000,192.168.133.132:21000,192.168.133.133:21000 #监听的配置服务器,只能有1个或者3个，configs为配置服务器的副本集名字
  maxConns=20000 #设置最大链接数
• 启动mongos服务，注意命令，前面都是mongod，这里是mongos
• mongos -f /etc/mongod/mongos.conf

分片搭建–启用分片

• 登陆任何一台20000端口
• mongo --port 20000
• 把全部分片和路由器串联
  sh.addShard("shard1/192.168.133.130:27001,192.168.133.132:27001,192.168.133.133:27001")
  sh.addShard("shard2/192.168.133.130:27002,192.168.133.132:27002,192.168.133.133:27002")
  sh.addShard("shard3/192.168.133.130:27003,192.168.133.132:27003,192.168.133.133:27003")
• 查看集群状态
  sh.status()

[root@Dasoncheng ~]# cat /etc/mongod/mongos.conf 
pidfilepath = /var/run/mongodb/mongos.pid
logpath = /data/mongodb/mongos/log/mongos.log
logappend = true
bind_ip = 0.0.0.0
port = 20000
fork = true
configdb = configs/192.168.60.11:21000,192.168.60.12:21000,192.168.60.13:21000 #监听的配置服务器,只能有1个或者3个，configs为配置服务器的副本集名字
maxConns=20000 #设置最大链接数
[root@Dasoncheng ~]# mongos -f /etc/mongod/mongos.conf
about to fork child process, waiting until server is ready for connections.
forked process: 3379
child process started successfully, parent exiting
[root@Dasoncheng ~]# mongo --port 20000
MongoDB shell version v3.4.9
connecting to: mongodb://127.0.0.1:20000/
MongoDB server version: 3.4.9
mongos> sh.addShard("shard1/192.168.60.11:27001,192.168.60.12:27001,192.168.60.13:27001")
{ "shardAdded" : "shard1", "ok" : 1 }
mongos> sh.addShard("shard2/192.168.60.11:27002,192.168.60.12:27002,192.168.60.13:27002")
{ "shardAdded" : "shard2", "ok" : 1 }
mongos> sh.addShard("shard3/192.168.60.11:27003,192.168.60.12:27003,192.168.60.13:27003")
{ "shardAdded" : "shard3", "ok" : 1 }
mongos> sh.status()
--- Sharding Status --- 
  sharding version: {
	"_id" : 1,
	"minCompatibleVersion" : 5,
	"currentVersion" : 6,
	"clusterId" : ObjectId("59e957b4b1833892fcc37ec7")
}
  shards:
	{  "_id" : "shard1",  "host" : "shard1/192.168.60.11:27001,192.168.60.12:27001",  "state" : 1 }
	{  "_id" : "shard2",  "host" : "shard2/192.168.60.12:27002,192.168.60.13:27002",  "state" : 1 }
	{  "_id" : "shard3",  "host" : "shard3/192.168.60.11:27003,192.168.60.13:27003",  "state" : 1 }
  active mongoses:
	"3.4.9" : 1
 autosplit:
	Currently enabled: yes
  balancer:
	Currently enabled:  yes
	Currently running:  no
		Balancer lock taken at Fri Oct 20 2017 14:44:12 GMT+0800 (CST) by ConfigServer:Balancer
	Failed balancer rounds in last 5 attempts:  0
	Migration Results for the last 24 hours: 
		No recent migrations
  databases:

---

有一个小错误：

[root@Dasoncheng ~]# mongos -f /etc/mongod/mongos.conf   
##启动mongos报错，只有60.11启动了；根据报错提示 查看了mongos.conf发现逗号","后面多了一个空格；我删掉从新启动 又报错 ，看下面
2017-10-20T15:38:02.214+0800 I NETWORK  [main] getaddrinfo(" 192.168.60.12") failed: Name or service not known
2017-10-20T15:38:02.330+0800 I NETWORK  [main] getaddrinfo(" 192.168.60.13") failed: Name or service not known
about to fork child process, waiting until server is ready for connections.
forked process: 3316
child process started successfully, parent exiting
[root@Dasoncheng ~]# cat /etc/mongod/mongos.conf 
pidfilepath = /var/run/mongodb/mongos.pid
logpath = /data/mongodb/mongos/log/mongos.log
logappend = true
bind_ip = 0.0.0.0
port = 20000
fork = true
configdb = configs/192.168.60.11:21000, 192.168.60.12:21000, 192.168.60.13:21000 #监听的配置服务器,只能有1个或者3个，configs为配置服务器的副本集名字
maxConns=20000 #设置最大链接数
[root@Dasoncheng ~]# !v
vim /etc/mongod/mongos.conf 
[root@Dasoncheng ~]# mongos -f /etc/mongod/mongos.conf  
##在这里启动报错，我就把进程mongos杀死了，pkill mongos=killall monogs
about to fork child process, waiting until server is ready for connections.
forked process: 3354
ERROR: child process failed, exited with error number 48
[root@Dasoncheng ~]# pkill mongos
[root@Dasoncheng ~]# mongos -f /etc/mongod/mongos.conf
about to fork child process, waiting until server is ready for connections.
forked process: 3379
child process started successfully, parent exiting
##启动成功；