mogodb replication set复制集
replication set复制集
简要命令
replication set复制集
replicattion set 多台服务器维护相同的数据副本,提高服务器的可用性. Replication set 设置全过程
0:创建目录
mkdir -p /data/r0 /data/r1 /data/r2 1:启动3个实例,且声明实例属于某复制集
./bin/mongod --port 27017 --dbpath /data/r0 --smallfiles --replSet rsa --fork --logpath /var/log/mongo17.log
./bin/mongod --port 27018 --dbpath /data/r1 --smallfiles --replSet rsa --fork --logpath /var/log/mongo18.log
./bin/mongod --port 27019 --dbpath /data/r2 --smallfiles --replSet rsa --fork --logpath /var/log/mongo19.log 2:配置
rsconf = {
_id:'rsa',
members:
[
{_id:0,
host:'192.168.1.201:27017'
}
]
} 3: 根据配置做初始化
rs.initiate(rsconf); 4: 添加节点
rs.add('192.168.1.201:27018');
rs.add('192.168.1.201:27019'); 5:查看状态
rs.status(); 6:删除节点
rs.remove('192.168.1.201:27019'); 7:主节点插入数据
>use test
>db.user.insert({uid:1,name:'lily'}); 8:连接secondary查询同步情况
./bin/mongo --port 27019
>use test
>show tables rsa:SECONDARY> show tables;
Sat Aug 17 16:03:55.786 JavaScript execution failed: error: { "$err" : "not master and slaveOk=false", "code" : 13435 } 8.1 出现上述错误,是因为slave默认不许读写
>rs.slaveOk();
>show tables #看到与primary 一致的数据
详细过程
0:创建目录
mkdir -p /data/r0 /data/r1 /data/r2 [mongod@mcw01 ~]$ ps -ef|grep mongo
root 16595 16566 0 10:57 pts/0 00:00:00 su - mongod
mongod 16596 16595 0 10:57 pts/0 00:00:02 -bash
mongod 16765 1 1 13:28 ? 00:02:13 mongod --dbpath=/mongodb/data --logpath=/mongodb/log/mongodb.log --port=27017 --logappend --fork
mongod 17150 16596 0 16:05 pts/0 00:00:00 ps -ef
mongod 17151 16596 0 16:05 pts/0 00:00:00 grep --color=auto mongo
[mongod@mcw01 ~]$ kill -2 16765
[mongod@mcw01 ~]$ ps -ef|grep mongo
root 16595 16566 0 10:57 pts/0 00:00:00 su - mongod
mongod 16596 16595 0 10:57 pts/0 00:00:02 -bash
mongod 17153 16596 0 16:05 pts/0 00:00:00 ps -ef
mongod 17154 16596 0 16:05 pts/0 00:00:00 grep --color=auto mongo
[mongod@mcw01 ~]$ ls /mongodb/
bin conf data log
[mongod@mcw01 ~]$ mv /mongodb/* /tmp/
[mongod@mcw01 ~]$ mkdir /mongodb/m1{7..9}
[mongod@mcw01 ~]$ ls /mongodb/
m17 m18 m19
[mongod@mcw01 ~]$ mkdir /mongodb/mlog
[mongod@mcw01 ~]$ ls /mongodb/
m17 m18 m19 mlog
[mongod@mcw01 ~]$
[mongod@mcw01 ~]$ mongod #刚刚把命令都移走了
-bash: /mongodb/bin/mongod: No such file or directory
[mongod@mcw01 ~]$ cp -a /tmp/bin/ /mongodb/ #把命令再移动回来
[mongod@mcw01 ~]$ ls /mongodb/
bin m17 m18 m19 mlog
1:启动3个实例,且声明实例属于某复制集
./bin/mongod --port 27017 --dbpath /data/r0 --smallfiles --replSet rsa --fork --logpath /var/log/mongo17.log
./bin/mongod --port 27018 --dbpath /data/r1 --smallfiles --replSet rsa --fork --logpath /var/log/mongo18.log
./bin/mongod --port 27019 --dbpath /data/r2 --smallfiles --replSet rsa --fork --logpath /var/log/mongo19.log 这里是测试，为了启动快才添加--smallfiles 的吧。如果实际使用的时候，应该不需要加这个参数。三个都指定同一个复制集，起名为rs2. [mongod@mcw01 ~]$ mongod --dbpath /mongodb/m17 --logpath /mongodb/mlog/m17.log --fork --port 27017 --replSet rs2 --smallfiles
about to fork child process, waiting until server is ready for connections.
forked process: 17206
child process started successfully, parent exiting
[mongod@mcw01 ~]$ mongod --dbpath /mongodb/m18 --logpath /mongodb/mlog/m18.log --fork --port 27018 --replSet rs2 --smallfiles
about to fork child process, waiting until server is ready for connections.
forked process: 17234
child process started successfully, parent exiting
[mongod@mcw01 ~]$ mongod --dbpath /mongodb/m19 --logpath /mongodb/mlog/m19.log --fork --port 27019 --replSet rs2 --smallfiles
about to fork child process, waiting until server is ready for connections.
forked process: 17257
child process started successfully, parent exiting
[mongod@mcw01 ~]$
[mongod@mcw01 ~]$ ps -ef|grep -v grep |grep dbpath #查看，已经启动三个进程，都是同一个复制集
mongod 17206 1 1 16:15 ? 00:00:04 mongod --dbpath /mongodb/m17 --logpath /mongodb/mlog/m17.log --fork --port 27017 --replSet rs2 --smallfiles
mongod 17234 1 1 16:18 ? 00:00:01 mongod --dbpath /mongodb/m18 --logpath /mongodb/mlog/m18.log --fork --port 27018 --replSet rs2 --smallfiles
mongod 17257 1 2 16:18 ? 00:00:01 mongod --dbpath /mongodb/m19 --logpath /mongodb/mlog/m19.log --fork --port 27019 --replSet rs2 --smallfiles
[mongod@mcw01 ~]$
2:配置
rsconf = {
_id:'rsa', #复制集名称
members: #有哪些成员
[
{_id:0,
host:'192.168.1.201:27017'
}
]
}
var rsconf = {
_id:'rs2',
members:
[
{_id:0,
host:'10.0.0.11:27017'
},
{_id:1,
host:'10.0.0.11:27018'
},
{_id:2,
host:'10.0.0.11:27019'
}
]
}
随便找一个节点进入，
[mongod@mcw01 ~]$ mongo --port 27017
.......
> #生成复制集配置变量
> var rsconf = {
... _id:'rs2',
... members:
... [
... {_id:0,
... host:'10.0.0.11:27017'
... },
... {_id:1,
... host:'10.0.0.11:27018'
... },
... {_id:2,
... host:'10.0.0.11:27019'
... }
... ]
... }
> printjson(rsconf) #打印一下变量
{
"_id" : "rs2",
"members" : [
{
"_id" : 0,
"host" : "10.0.0.11:27017"
},
{
"_id" : 1,
"host" : "10.0.0.11:27018"
},
{
"_id" : 2,
"host" : "10.0.0.11:27019"
}
]
}
>
3: 根据配置做初始化
rs.initiate(rsconf); > #根据生成的复制集配置变量，做初始化。初始化完后直接进入不同的命令行前面的信息中rs2副本名称:other>
> rs.initiate(rsconf);
{ "ok" : 1 }
rs2:OTHER>
rs2:OTHER> rs.status(); #执行命令查看复制集状态，
{
"set" : "rs2", #复制集名称
"date" : ISODate("2022-03-04T08:31:33.312Z"),
"myState" : 1, #状态
"term" : NumberLong(1),
"heartbeatIntervalMillis" : NumberLong(2000),
"members" : [ #有哪些成员
{
"_id" : 0,
"name" : "10.0.0.11:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY", #这个成员是主，其它两个不是，是SECONDARY
"uptime" : 976,
"optime" : {
"ts" : Timestamp(1646382581, 2),
"t" : NumberLong(1)
},
"optimeDate" : ISODate("2022-03-04T08:29:41Z"),
"infoMessage" : "could not find member to sync from",
"electionTime" : Timestamp(1646382581, 1),
"electionDate" : ISODate("2022-03-04T08:29:41Z"),
"configVersion" : 1,
"self" : true
},
{
"_id" : 1,
"name" : "10.0.0.11:27018",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 123,
"optime" : {
"ts" : Timestamp(1646382581, 2),
"t" : NumberLong(1)
},
"optimeDate" : ISODate("2022-03-04T08:29:41Z"),
"lastHeartbeat" : ISODate("2022-03-04T08:31:33.193Z"),
"lastHeartbeatRecv" : ISODate("2022-03-04T08:31:31.611Z"),
"pingMs" : NumberLong(0),
"syncingTo" : "10.0.0.11:27017",
"configVersion" : 1
},
{
"_id" : 2,
"name" : "10.0.0.11:27019",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 123,
"optime" : {
"ts" : Timestamp(1646382581, 2),
"t" : NumberLong(1)
},
"optimeDate" : ISODate("2022-03-04T08:29:41Z"),
"lastHeartbeat" : ISODate("2022-03-04T08:31:33.193Z"),
"lastHeartbeatRecv" : ISODate("2022-03-04T08:31:31.663Z"),
"pingMs" : NumberLong(0),
"syncingTo" : "10.0.0.11:27018",
"configVersion" : 1
}
],
"ok" : 1
}
rs2:PRIMARY> #执行完查看状态的命令后，这里就变成了：复制集名称：主> 我们推出来进入备的
[mongod@mcw01 ~]$ mongo --port 27018
......
rs2:SECONDARY> #可以看到这里是复制集名称：SECONDARY> 这样就已经配置好复制集了
4: 添加节点
rs.add('192.168.1.201:27018');
rs.add('192.168.1.201:27019');
根据后面删除的方法，已经删除了两个结点，只剩一个节点了。下面我们再将节点添加上
rs2:PRIMARY> rs.remove('10.0.0.11:27018')
{ "ok" : 1 }
rs2:PRIMARY> rs.status();
{
"set" : "rs2",
"date" : ISODate("2022-03-04T08:43:55.005Z"),
"myState" : 1,
"term" : NumberLong(1),
"heartbeatIntervalMillis" : NumberLong(2000),
"members" : [
{
"_id" : 0,
"name" : "10.0.0.11:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 1718,
"optime" : {
"ts" : Timestamp(1646383431, 1),
"t" : NumberLong(1)
},
"optimeDate" : ISODate("2022-03-04T08:43:51Z"),
"electionTime" : Timestamp(1646382581, 1),
"electionDate" : ISODate("2022-03-04T08:29:41Z"),
"configVersion" : 3,
"self" : true
}
],
"ok" : 1
}
rs2:PRIMARY>
rs2:PRIMARY> rs.add('10.0.0.11:27018') #重新添加成员
{ "ok" : 1 }
rs2:PRIMARY> rs.add('10.0.0.11:27019')
{ "ok" : 1 }
rs2:PRIMARY> rs.status();
{
"set" : "rs2",
"date" : ISODate("2022-03-04T08:46:07.840Z"),
"myState" : 1,
"term" : NumberLong(1),
"heartbeatIntervalMillis" : NumberLong(2000),
"members" : [
{
"_id" : 0,
"name" : "10.0.0.11:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 1850,
"optime" : {
"ts" : Timestamp(1646383557, 1),
"t" : NumberLong(1)
},
"optimeDate" : ISODate("2022-03-04T08:45:57Z"),
"electionTime" : Timestamp(1646382581, 1),
"electionDate" : ISODate("2022-03-04T08:29:41Z"),
"configVersion" : 5,
"self" : true
},
{
"_id" : 1,
"name" : "10.0.0.11:27018",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 23,
"optime" : {
"ts" : Timestamp(1646383557, 1),
"t" : NumberLong(1)
},
"optimeDate" : ISODate("2022-03-04T08:45:57Z"),
"lastHeartbeat" : ISODate("2022-03-04T08:46:06.067Z"),
"lastHeartbeatRecv" : ISODate("2022-03-04T08:46:06.914Z"),
"pingMs" : NumberLong(0),
"syncingTo" : "10.0.0.11:27017",
"configVersion" : 5
},
{
"_id" : 2,
"name" : "10.0.0.11:27019",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 7,
"optime" : {
"ts" : Timestamp(1646383557, 1),
"t" : NumberLong(1)
},
"optimeDate" : ISODate("2022-03-04T08:45:57Z"),
"lastHeartbeat" : ISODate("2022-03-04T08:46:06.071Z"),
"lastHeartbeatRecv" : ISODate("2022-03-04T08:46:06.066Z"),
"pingMs" : NumberLong(0),
"syncingTo" : "10.0.0.11:27018",
"configVersion" : 5
}
],
"ok" : 1
}
rs2:PRIMARY>
5:查看状态
rs.status(); rs2:OTHER> rs.status(); #执行命令查看复制集状态，
{
"set" : "rs2", #复制集名称
"date" : ISODate("2022-03-04T08:31:33.312Z"),
"myState" : 1, #状态
"term" : NumberLong(1),
"heartbeatIntervalMillis" : NumberLong(2000),
"members" : [ #有哪些成员
{
"_id" : 0,
"name" : "10.0.0.11:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY", #这个成员是主，其它两个不是，是SECONDARY
"uptime" : 976,
"optime" : {
"ts" : Timestamp(1646382581, 2),
"t" : NumberLong(1)
},
"optimeDate" : ISODate("2022-03-04T08:29:41Z"),
"infoMessage" : "could not find member to sync from",
"electionTime" : Timestamp(1646382581, 1),
"electionDate" : ISODate("2022-03-04T08:29:41Z"),
"configVersion" : 1,
"self" : true
},
{
"_id" : 1,
"name" : "10.0.0.11:27018",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 123,
"optime" : {
"ts" : Timestamp(1646382581, 2),
"t" : NumberLong(1)
},
"optimeDate" : ISODate("2022-03-04T08:29:41Z"),
"lastHeartbeat" : ISODate("2022-03-04T08:31:33.193Z"),
"lastHeartbeatRecv" : ISODate("2022-03-04T08:31:31.611Z"),
"pingMs" : NumberLong(0),
"syncingTo" : "10.0.0.11:27017",
"configVersion" : 1
},
{
"_id" : 2,
"name" : "10.0.0.11:27019",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 123,
"optime" : {
"ts" : Timestamp(1646382581, 2),
"t" : NumberLong(1)
},
"optimeDate" : ISODate("2022-03-04T08:29:41Z"),
"lastHeartbeat" : ISODate("2022-03-04T08:31:33.193Z"),
"lastHeartbeatRecv" : ISODate("2022-03-04T08:31:31.663Z"),
"pingMs" : NumberLong(0),
"syncingTo" : "10.0.0.11:27018",
"configVersion" : 1
}
],
"ok" : 1
}
6:删除节点
rs.remove('192.168.1.201:27019');
rs2:PRIMARY> rs.remove('10.0.0.11:27019')
{ "ok" : 1 }
rs2:PRIMARY> rs.status();
{
"set" : "rs2",
"date" : ISODate("2022-03-04T08:40:48.604Z"),
"myState" : 1,
"term" : NumberLong(1),
"heartbeatIntervalMillis" : NumberLong(2000),
"members" : [
{
"_id" : 0,
"name" : "10.0.0.11:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 1531,
"optime" : {
"ts" : Timestamp(1646383235, 1),
"t" : NumberLong(1)
},
"optimeDate" : ISODate("2022-03-04T08:40:35Z"),
"electionTime" : Timestamp(1646382581, 1),
"electionDate" : ISODate("2022-03-04T08:29:41Z"),
"configVersion" : 2,
"self" : true
},
{
"_id" : 1,
"name" : "10.0.0.11:27018",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 679,
"optime" : {
"ts" : Timestamp(1646383235, 1),
"t" : NumberLong(1)
},
"optimeDate" : ISODate("2022-03-04T08:40:35Z"),
"lastHeartbeat" : ISODate("2022-03-04T08:40:47.168Z"),
"lastHeartbeatRecv" : ISODate("2022-03-04T08:40:47.188Z"),
"pingMs" : NumberLong(0),
"syncingTo" : "10.0.0.11:27017",
"configVersion" : 2
}
],
"ok" : 1
}
rs2:PRIMARY>
7:主节点插入数据
>use test
>db.user.insert({uid:1,name:'lily'});
8:连接secondary查询同步情况
./bin/mongo --port 27019
>use test
>show tables rsa:SECONDARY> show tables;
Sat Aug 17 16:03:55.786 JavaScript execution failed: error: { "$err" : "not master and slaveOk=false", "code" : 13435 } 在主上是可以查看的
rs2:PRIMARY> show dbs;
local 0.000GB
rs2:PRIMARY>
但是当我们进入从的时候，无法查询，报错不是主
[mongod@mcw01 ~]$ mongo --port 27018
......
rs2:SECONDARY> show dbs;
2022-03-04T16:51:53.478+0800 E QUERY [thread1] Error: listDatabases failed:{ "ok" : 0, "errmsg" : "not master and slaveOk=false", "code" : 13435 } :
_getErrorWithCode@src/mongo/shell/utils.js:25:13
Mongo.prototype.getDBs@src/mongo/shell/mongo.js:62:1
shellHelper.show@src/mongo/shell/utils.js:761:19
shellHelper@src/mongo/shell/utils.js:651:15
@(shellhelp2):1:1 SECONDARY默认不允许读写 rs2:SECONDARY>
rs2:SECONDARY> rs.slaveOk(); 那我们按错误信息将它设置成ok，这样从就可以读取数据了
rs2:SECONDARY> show dbs;
local 0.000GB
rs2:SECONDARY> 在主上插入数据
rs2:PRIMARY> use test
switched to db test
rs2:PRIMARY> db.user.insert({uid:1,name:'lily'});
WriteResult({ "nInserted" : 1 })
rs2:PRIMARY> db.user.find();
{ "_id" : ObjectId("6221d4bfabd9594d8ce84607"), "uid" : 1, "name" : "lily" }
rs2:PRIMARY> 我们在从上去查看，数据是同步的。一样的。
rs2:SECONDARY> show dbs;
local 0.000GB
test 0.000GB
rs2:SECONDARY> use test;
switched to db test
rs2:SECONDARY> show tables;
user
rs2:SECONDARY> db.user.find();
{ "_id" : ObjectId("6221d4bfabd9594d8ce84607"), "uid" : 1, "name" : "lily" }
rs2:SECONDARY> 8.1 出现上述错误,是因为slave默认不许读写
>rs.slaveOk();
>show tables #看到与primary 一致的数据
9、当我将主上的服务停掉，模拟服务宕了
rs2:PRIMARY> use admin
switched to db admin
rs2:PRIMARY> db.shutdownServer()
server should be down...
2022-03-04T17:02:15.304+0800 I NETWORK [thread1] trying reconnect to 127.0.0.1:27017 (127.0.0.1) failed
2022-03-04T17:02:16.387+0800 I NETWORK [thread1] Socket recv() errno:104 Connection reset by peer 127.0.0.1:27017
2022-03-04T17:02:16.388+0800 I NETWORK [thread1] SocketException: remote: (NONE):0 error: 9001 socket exception [RECV_ERROR] server [127.0.0.1:27017]
2022-03-04T17:02:16.388+0800 I NETWORK [thread1] reconnect 127.0.0.1:27017 (127.0.0.1) failed failed
2022-03-04T17:02:16.391+0800 I NETWORK [thread1] trying reconnect to 127.0.0.1:27017 (127.0.0.1) failed
2022-03-04T17:02:16.392+0800 W NETWORK [thread1] Failed to connect to 127.0.0.1:27017, reason: errno:111 Connection refused
2022-03-04T17:02:16.392+0800 I NETWORK [thread1] reconnect 127.0.0.1:27017 (127.0.0.1) failed failed
> 然后我们去27018节点上去查看复制集状态。发现27017健康是0。并且主节点已经由27017变为27018了
rs2:SECONDARY> rs.status();
{
"set" : "rs2",
"date" : ISODate("2022-03-04T09:04:46.442Z"),
"myState" : 1,
"term" : NumberLong(2),
"heartbeatIntervalMillis" : NumberLong(2000),
"members" : [
{
"_id" : 0,
"name" : "10.0.0.11:27017",
"health" : 0,
"state" : 8,
"stateStr" : "(not reachable/healthy)",
"uptime" : 0,
"optime" : {
"ts" : Timestamp(0, 0),
"t" : NumberLong(-1)
},
"optimeDate" : ISODate("1970-01-01T00:00:00Z"),
"lastHeartbeat" : ISODate("2022-03-04T09:04:46.304Z"),
"lastHeartbeatRecv" : ISODate("2022-03-04T09:02:13.762Z"),
"pingMs" : NumberLong(0),
"lastHeartbeatMessage" : "Connection refused",
"configVersion" : -1
},
{
"_id" : 1,
"name" : "10.0.0.11:27018",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 2769,
"optime" : {
"ts" : Timestamp(1646384546, 1),
"t" : NumberLong(2)
},
"optimeDate" : ISODate("2022-03-04T09:02:26Z"),
"electionTime" : Timestamp(1646384545, 1),
"electionDate" : ISODate("2022-03-04T09:02:25Z"),
"configVersion" : 5,
"self" : true
},
{
"_id" : 2,
"name" : "10.0.0.11:27019",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 1123,
"optime" : {
"ts" : Timestamp(1646384546, 1),
"t" : NumberLong(2)
},
"optimeDate" : ISODate("2022-03-04T09:02:26Z"),
"lastHeartbeat" : ISODate("2022-03-04T09:04:46.267Z"),
"lastHeartbeatRecv" : ISODate("2022-03-04T09:04:45.029Z"),
"pingMs" : NumberLong(0),
"syncingTo" : "10.0.0.11:27018",
"configVersion" : 5
}
],
"ok" : 1
}
rs2:PRIMARY> 在当前的主27018上插入数据
rs2:PRIMARY> use test
switched to db test
rs2:PRIMARY> show tables;
user
rs2:PRIMARY> db.user.insert({uid:2,name:'xiaoma'})
WriteResult({ "nInserted" : 1 })
rs2:PRIMARY> db.user.find()
{ "_id" : ObjectId("6221d4bfabd9594d8ce84607"), "uid" : 1, "name" : "lily" }
{ "_id" : ObjectId("6221d775ef402350b10ce148"), "uid" : 2, "name" : "xiaoma" }
rs2:PRIMARY> 然后去27019上现在这个从上去查看,能看到新的主27018上创建的数据
[mongod@mcw01 ~]$ mongo --port 27019
.......
rs2:SECONDARY> show dbs;
2022-03-04T17:11:47.714+0800 E QUERY [thread1] Error: listDatabases failed:{ "ok" : 0, "errmsg" : "not master and slaveOk=false", "code" : 13435 } :
_getErrorWithCode@src/mongo/shell/utils.js:25:13
Mongo.prototype.getDBs@src/mongo/shell/mongo.js:62:1
shellHelper.show@src/mongo/shell/utils.js:761:19
shellHelper@src/mongo/shell/utils.js:651:15
@(shellhelp2):1:1 rs2:SECONDARY> rs.slaveOk();
rs2:SECONDARY> show dbs;
local 0.000GB
test 0.000GB
rs2:SECONDARY> use test;
switched to db test
rs2:SECONDARY> show tables;
user
rs2:SECONDARY> db.user.find();
{ "_id" : ObjectId("6221d4bfabd9594d8ce84607"), "uid" : 1, "name" : "lily" }
{ "_id" : ObjectId("6221d775ef402350b10ce148"), "uid" : 2, "name" : "xiaoma" }
rs2:SECONDARY>
免交互执行mogodb的命令，可实现程序一键部署
启动3个实例，然后进入某个实例进行初始化就完成单机复制集 集群配置了。
[mongod@mcw01 ~]$ mongo --port 27018 <<EOF
use admin
var rsconf = {
_id: 'rs2',
members:[{},
{},
]};
printjson(rsconf);
<<
EOF MongoDB shell version: 3.2.8
connecting to: 127.0.0.1:27018/test
switched to db admin
{ "_id" : "rs2", "members" : [ { }, { } ] } bye
[mongod@mcw01 ~]$
[mongod@mcw01 ~]$ sh 1.sh install
about to fork child process, waiting until server is ready for connections.
forked process: 19633
child process started successfully, parent exiting
about to fork child process, waiting until server is ready for connections.
forked process: 19652
child process started successfully, parent exiting
about to fork child process, waiting until server is ready for connections.
forked process: 19679
child process started successfully, parent exiting
[mongod@mcw01 ~]$ [mongod@mcw01 ~]$ sh 1.sh repl
MongoDB shell version: 3.2.8
connecting to: 127.0.0.1:27017/test
switched to db admin
{ "ok" : 1 } bye
[mongod@mcw01 ~]$ cat 1.sh
#!/bin/bash
#复制集配置
IP='10.0.0.11' #主机ip
NA='rs3' #复制集名称 if [ "$1" = "reset" ]
then
kill -2 `ps -ef|grep -v grep |grep logpath|awk '{print $2}'`
sleep 2
rm -rf /mongodb/m{17,18,19,log}/*
exit
fi if [ "$1" = "install" ]
then
mkdir -p /mongodb/m{17,18,19,log}/
mongod --dbpath /mongodb/m17 --logpath /mongodb/mlog/m17.log --logappend --fork --port 27017 --replSet ${NA} --smallfiles
mongod --dbpath /mongodb/m18 --logpath /mongodb/mlog/m18.log --logappend --fork --port 27018 --replSet ${NA} --smallfiles
mongod --dbpath /mongodb/m19 --logpath /mongodb/mlog/m19.log --logappend --fork --port 27019 --replSet ${NA} --smallfiles
exit
fi if [ "$1" = "repl" ]
then
mongo --port 27017 <<EOF use admin;
var rsconf = {
_id:'${NA}',
members:[
{_id:0,host:'${IP}:27017'},
{_id:1,host:'${IP}:27018'},
{_id:2,host:'${IP}:27019'},
]
};
rs.initiate(rsconf);
<<
EOF
fi
[mongod@mcw01 ~]$
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