配置MongoDB数据库 主从复制 副本集群 的详细步骤
一、部署主从复制
1、主服务器和从服务器必须开启安全认证:--auth
2、主服务器和从服务器的admin数据库中必须有全局用户。
3、主服务器的local数据库和从服务器的local数据均有名为repl且密码相同的用户名。
主服务器设置：
dongguo@mongodb:~$ mongo
MongoDB shell version: 2.2.0
connecting to: test
> use admin
switched to db admin
> db.addUser('rootm','rootm')
{
"user" : "rootm",
"readOnly" : false,
"pwd" : "aa6526e3b7cbcecc18b2bd822f7c3547",
"_id" : ObjectId("50659e14d2fe6be605337c18")
}
> db.addUser('repl','repl')
{
"user" : "repl",
"readOnly" : false,
"pwd" : "c9f242649c23670ff94c4ca00ea06fe7",
"_id" : ObjectId("5065a85eccf77b17681365b7")
}
> use cloud
switched to db cloud
> db.addUser('repl','repl')
{
"_id" : ObjectId("5065a7cbb70f43c4d157e8ec"),
"user" : "repl",
"readOnly" : false,
"pwd" : "c9f242649c23670ff94c4ca00ea06fe7"
}
> use local
switched to db local
> db.addUser('repl','repl')
{
"user" : "repl",
"readOnly" : false,
"pwd" : "c9f242649c23670ff94c4ca00ea06fe7",
"_id" : ObjectId("50659e2cd2fe6be605337c19")
}
> exit
bye
dongguo@mongodb:~$ sudo /etc/init.d/mongod stop
dongguo@mongodb:~$ sudo vim /opt/mongodb/etc/mongod.conf
修改如下设置：
master = true
auth = true
dongguo@mongodb:~$ sudo /etc/init.d/mongod start
dongguo@mongodb:~$ vim /etc/init.d/mongod
增加用户名与密码属性
$CLIEXEC admin -u rootm -p rootm --eval "db.shutdownServer()"
在日志中可以看到auth与master参数都已经被启用。
dongguo@mongodb:~$ tailf /opt/mongodb/log/mongodb.log
Fri Sep 28 20:58:33 [initandlisten] MongoDB starting : pid=15992 port=27017 dbpath=/opt/mongodb/data master=1 64-bit
host=mongodb
Fri Sep 28 20:58:33 [initandlisten] db version v2.2.0, pdfile version 4.5
Fri Sep 28 20:58:33 [initandlisten] git version: f5e83eae9cfbec7fb7a071321928f00d1b0c5207
Fri Sep 28 20:58:33 [initandlisten] build info: Linux ip-10-2-29-40 2.6.21.7-2.ec2.v1.2.fc8xen #1 SMP Fri Nov 20 17:48:28 EST
2009 x86_64 BOOST_LIB_VERSION=1_49
Fri Sep 28 20:58:33 [initandlisten] options: { auth: "true", config: "/opt/mongodb/etc/mongod.conf", dbpath:
"/opt/mongodb/data", fork: "true", logappend: "true", logpath: "/opt/mongodb/log/mongodb.log", master: "true", pidfilepath:
"/opt/mongodb/run/mongod.pid", port: 27017 }
Fri Sep 28 20:58:33 [initandlisten] journal dir=/opt/mongodb/data/journal
从服务器设置：
dongguo@mongodb-node1:~$ mongo
MongoDB shell version: 2.2.0
connecting to: test
> use admin
switched to db admin
> db.addUser('roots','roots')
{
"user" : "roots",
"readOnly" : false,
"pwd" : "430b42be2092c65349e29043412a9155",
"_id" : ObjectId("50659fc1eb520e528f23454d")
}
> db.addUser('repl','repl')
{
"user" : "repl",
"readOnly" : false,
"pwd" : "c9f242649c23670ff94c4ca00ea06fe7",
"_id" : ObjectId("5065a9772485dc71fdfe1af5")
}
> db.addUser('repl','repl')
{
"user" : "repl",
"readOnly" : false,
"pwd" : "c9f242649c23670ff94c4ca00ea06fe7",
"_id" : ObjectId("5065a9a22485dc71fdfe1af6")
}
> use local
switched to db local
> db.addUser('repl','repl')
{
"user" : "repl",
"readOnly" : false,
"pwd" : "c9f242649c23670ff94c4ca00ea06fe7",
"_id" : ObjectId("50659fd1eb520e528f23454e")
}
> exit
bye
dongguo@mongodb-node1:~$ sudo /etc/init.d/mongod stop
dongguo@mongodb-node1:~$ sudo vim /opt/mongodb/etc/mongod.conf
修改如下设置：
slave = true
auth = true
source = 10.6.1.145:27017
dongguo@mongodb-node1:~$ sudo /etc/init.d/mongod start
dongguo@mongodb-node1:~$ vim /etc/init.d/mongod
增加用户名与密码属性
$CLIEXEC admin -u roots -p roots --eval "db.shutdownServer()"
在日志中可以看到auth与master参数都已经被启用，并且数据也开始进行了复制。
dongguo@mongodb-node1:~$ tailf /opt/mongodb/log/mongodb.log
Fri Sep 28 21:05:26 [initandlisten] options: { auth: "true", config: "/opt/mongodb/etc/mongod.conf", dbpath:
"/opt/mongodb/data", fork: "true", logappend: "true", logpath: "/opt/mongodb/log/mongodb.log", pidfilepath:
"/opt/mongodb/run/mongod.pid", port: 27017, slave: "true", source: "10.6.1.145:27017" }
Fri Sep 28 21:05:26 [initandlisten] journal dir=/opt/mongodb/data/journal
Fri Sep 28 21:05:26 [initandlisten] recover : no journal files present, no recovery needed
Fri Sep 28 21:05:26 [initandlisten] waiting for connections on port 27017
Fri Sep 28 21:05:26 [websvr] admin web console waiting for connections on port 28017
Fri Sep 28 21:05:27 [replslave] build index local.sources { _id: 1 }
Fri Sep 28 21:05:27 [replslave] build index done. scanned 0 total records. 0 secs
Fri Sep 28 21:05:27 [replslave] repl: syncing from host:10.6.1.145:27017
Fri Sep 28 21:05:27 [replslave] build index local.me { _id: 1 }
Fri Sep 28 21:05:27 [replslave] build index done. scanned 0 total records. 0 secs
Fri Sep 28 21:05:36 [replslave] repl: applied 1 operations
Fri Sep 28 21:05:36 [replslave] repl: end sync_pullOpLog syncedTo: Sep 28 21:05:38 5065a0a2:1
Fri Sep 28 21:05:36 [replslave] repl: syncing from host:10.6.1.145:27017
Fri Sep 28 21:05:36 [replslave] resync: dropping database cloud
Fri Sep 28 21:05:36 [replslave] removeJournalFiles
Fri Sep 28 21:05:36 [replslave] resync: cloning database cloud to get an initial copy
Fri Sep 28 21:05:36 [FileAllocator] allocating new datafile /opt/mongodb/data/cloud.ns, filling with zeroes...
Fri Sep 28 21:05:36 [FileAllocator] done allocating datafile /opt/mongodb/data/cloud.ns, size: 16MB, took 0 secs
Fri Sep 28 21:05:36 [FileAllocator] allocating new datafile /opt/mongodb/data/cloud.0, filling with zeroes...
Fri Sep 28 21:05:36 [FileAllocator] done allocating datafile /opt/mongodb/data/cloud.0, size: 64MB, took 0.001 secs
Fri Sep 28 21:05:36 [FileAllocator] allocating new datafile /opt/mongodb/data/cloud.1, filling with zeroes...
Fri Sep 28 21:05:36 [FileAllocator] done allocating datafile /opt/mongodb/data/cloud.1, size: 128MB, took 0.004 secs
Fri Sep 28 21:05:36 [replslave] build index cloud.vm_instance { _id: 1 }
Fri Sep 28 21:05:36 [replslave] fastBuildIndex dupsToDrop:0
Fri Sep 28 21:05:36 [replslave] build index done. scanned 79 total records. 0.014 secs
Fri Sep 28 21:05:36 [replslave] build index cloud.system.users { _id: 1 }
Fri Sep 28 21:05:36 [replslave] fastBuildIndex dupsToDrop:0
Fri Sep 28 21:05:36 [replslave] build index done. scanned 1 total records. 0 secs
Fri Sep 28 21:05:36 [replslave] resync: done with initial clone for db: cloud
Fri Sep 28 21:05:42 [replslave] repl: syncing from host:10.6.1.145:2701
接下来登陆数据库进行手工验证：
dongguo@mongodb-node1:~$ mongo
MongoDB shell version: 2.2.0
connecting to: test
> use cloud;
switched to db cloud
> db.auth('repl','repl')
1
> db.vm_instance
db.vm_instance
> db.vm_instance.find()
"uuid" : "1e5de227-547e-4ed0-957a-8884559d01cd", "created" : "2012-06-29 00:40:53" }
{ "_id" : ObjectId("50658bd04ff74b0e8f2f6488"), "id" : 5, "instance_name" : "i-2-5-VM", "private_ip_address" : "10.6.223.41",
"uuid" : "123f8676-2fc1-413a-bdec-89e54835ad6a", "created" : "2012-06-29 01:20:37" }
{ "_id" : ObjectId("50658bd04ff74b0e8f2f6489"), "id" : 6, "instance_name" : "i-2-6-VM", "private_ip_address" : "10.6.223.139",
"uuid" : "7d39898e-cc0d-46b2-a1d4-170201acf832", "created" : "2012-06-29 03:55:32" }
{ "_id" : ObjectId("50658bd04ff74b0e8f2f648a"), "id" : 7, "instance_name" : "i-2-7-VM", "private_ip_address" : "10.6.223.140",
"uuid" : "ad0690bb-6738-42e3-a3ee-5a93b47fd3a4", "created" : "2012-06-29 03:55:52" }
{ "_id" : ObjectId("50658bd04ff74b0e8f2f648b"), "id" : 8, "instance_name" : "i-2-8-VM", "private_ip_address" : "10.6.223.142",
"uuid" : "5beb13b5-8319-43a0-a65f-e7c7dde4334f", "created" : "2012-06-29 03:56:07" }
{ "_id" : ObjectId("50658bd04ff74b0e8f2f648c"), "id" : 9, "instance_name" : "i-2-9-VM", "private_ip_address" : "10.6.223.143",
Type "it" for more
>
bye
数据库cloud中的数据已经成功的同步过来了，主从复制搭建成功。
二、部署副本集群
接下来我们开始搭建副本集群，这是一个更高级方式，和主从复制不同的是：
1. 该集群没有特定的主数据库；
2. 如果某个主数据库宕机了，集群中就会推选出一个从数据库作为主数据库顶上，实现自动故障恢复功能，非常不错。
首先，我们准备三台服务器 mongodb,mongodb-node1,mongodb-node2。
确保只有mongodb上有数据，而mongodb-node1与mongodb-node2上都没有数据，如果有则通过 use dbname和db.dropDatabase()将数据删除。
dongguo@mongodb-node1:~$ mongo
MongoDB shell version: 2.2.0
connecting to: test
> show dbs
local (empty)
>
bye
dongguo@mongodb-node2:~$ mongo
MongoDB shell version: 2.2.0
connecting to: test
> show dbs
local (empty)
>
bye
dongguo@mongodb:~$ mongo admin
MongoDB shell version: 2.2.0
connecting to: admin
> show dbs
admin 0.203125GB
cloud 0.203125GB
local 1.203125GB
并取消之前在mongodb与mongodb-node1的相关主从设置
dongguo@mongodb:~$ sudo vim /opt/mongodb/etc/mongod.conf
修改如下设置：
#master = true
#auth = true
dongguo@mongodb-node1:~$ sudo vim /opt/mongodb/etc/mongod.conf
修改如下设置：
#slave = true
#auth = true
#source = 10.6.1.145:27017
并修改服务管理脚本
$ vim /etc/init.d/mongod
$CLIEXEC admin --eval "db.shutdownServer()"
然后在三台服务器上加入启动参数 --replSet
需要给集群一个名称，比如MoboTap，--replSet 表示让服务器知道MoboTap下还有其他数据库。
$ sudo vim /opt/mongodb/etc/mongod.conf
replSet = MoboTap
然后重启三台服务器的MongoDB
$ sudo /etc/init.d/mongod stop
$ sudo /etc/init.d/mongod start
在mongodb服务器上初始化整个副本集群
dongguo@mongodb:~$ mongo admin
MongoDB shell version: 2.2.0
connecting to: admin
> show dbs
admin 0.203125GB
cloud 0.203125GB
local 1.203125GB
> db.runCommand({"replSetInitiate":{ ... "_id":"MoboTap", ... "members":[ ... { ... "_id":1, ... "host":"10.6.1.145:27017" ... }, ... { ... "_id":2, ... "host":"10.6.1.146:27017" ... }, ... { ... "_id":3, ... "host":"10.6.1.147:27017" ... } ... ]}}) { "info" : "Config now saved locally. Should come online in about a minute.", "ok" : 1 }
然后我们检查目前整个副本集群的主从状态：
dongguo@mongodb:~$ mongo
MongoDB shell version: 2.2.0
connecting to: test
MoboTap:PRIMARY>
dongguo@mongodb-node1:~$ mongo
MongoDB shell version: 2.2.0
connecting to: test
MoboTap:SECONDARY>
MoboTap:SECONDARY> show dbs
admin 0.203125GB
cloud 0.203125GB
local 1.203125GB
dongguo@mongodb-node2:~$ mongo
MongoDB shell version: 2.2.0
connecting to: test
MoboTap:SECONDARY>
MoboTap:SECONDARY> show dbs
admin 0.203125GB
cloud 0.203125GB
local 1.203125GB
我们可以看到，目前通过内部的自动“选举”，mongodb担任了PRIMARY的角色，而另外的node1与node2则担任了SECONDARY，并且成功的从mongodb中同步了数据。
我们可以通过rs.status()很方便的查看集群中的服务器状态。
dongguo@mongodb:~$ mongo
MongoDB shell version: 2.2.0
connecting to: test
MoboTap:PRIMARY> rs.status()
{
"set" : "MoboTap",
"date" : ISODate("2012-09-28T21:38:29Z"),
"myState" : 1,
"members" : [
{
"_id" : 1,
"name" : "10.6.1.145:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 8665,
"optime" : Timestamp(1348866843000, 1),
"optimeDate" : ISODate("2012-09-28T21:14:03Z"),
"self" : true
},
{
"_id" : 2,
"name" : "10.6.1.146:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 1464,
"optime" : Timestamp(1348866843000, 1),
"optimeDate" : ISODate("2012-09-28T21:14:03Z"),
"lastHeartbeat" : ISODate("2012-09-28T21:38:28Z"),
"pingMs" : 0
},
{
"_id" : 3,
"name" : "10.6.1.147:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 1464,
"optime" : Timestamp(1348866843000, 1),
"optimeDate" : ISODate("2012-09-28T21:14:03Z"),
"lastHeartbeat" : ISODate("2012-09-28T21:38:28Z"),
"pingMs" : 0
}
],
"ok" : 1
}
在MongoDB的副本集群中，还有一个角色叫做仲裁服务器，它的特点是只参与投票选举，而不会同步数据。
我们可以通过下面的步骤来新增一台仲裁服务器mongodb-node3。
MongoDB的配置与上面的mongodb-node2完全相同，同样也要保证没有数据且启用了--replSet参数。
启动mongodb-node3之后，我们在mongodb上执行如下操作：
dongguo@mongodb:~$ mongo admin
MongoDB shell version: 2.2.0
connecting to: admin
MoboTap:PRIMARY> rs.addArb("10.6.1.148:27017")
{ "ok" : 1 }
MoboTap:PRIMARY> rs.status()
{
"set" : "MoboTap",
"date" : ISODate("2012-09-28T21:56:32Z"),
"myState" : 1,
"members" : [
{
"_id" : 1,
"name" : "10.6.1.145:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 9748,
"optime" : Timestamp(1348869269000, 1),
"optimeDate" : ISODate("2012-09-28T21:54:29Z"),
"self" : true
},
{
"_id" : 2,
"name" : "10.6.1.146:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 2547,
"optime" : Timestamp(1348869269000, 1),
"optimeDate" : ISODate("2012-09-28T21:54:29Z"),
"lastHeartbeat" : ISODate("2012-09-28T21:56:31Z"),
"pingMs" : 0
},
{
"_id" : 3,
"name" : "10.6.1.147:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 464,
"optime" : Timestamp(1348869269000, 1),
"optimeDate" : ISODate("2012-09-28T21:54:29Z"),
"lastHeartbeat" : ISODate("2012-09-28T21:56:30Z"),
"pingMs" : 0
},
{
"_id" : 4,
"name" : "10.6.1.148:27017",
"health" : 1,
"state" : 7,
"stateStr" : "ARBITER",
"uptime" : 17,
"lastHeartbeat" : ISODate("2012-09-28T21:56:31Z"),
"pingMs" : 0
}
],
"ok" : 1
}
我们可以看到仲裁服务器已经被添加进来了，角色为ARBITER，就是仲裁的意思。
好的，目前整个副本集群就搭建好了，那么这个集群所具备的一个非常好的特性 “自动故障恢复”，我们就可以来好好见识一下了。
下面，我们将目前担任PRIMARY角色的服务器的进程直接Kill掉：
dongguo@mongodb:~$ ps aux | grep mongod
root 17029 0.3 12.9 5480648 64836 ? Sl 03:14 0:31 /opt/mongodb/bin/mongod --config /opt/mongodb/etc/mongod.conf
dongguo 18010 0.0 0.1 6224 584 pts/0 S+ 06:01 0:00 grep --color=auto mongod
dongguo@mongodb:~$ sudo killall -9 mongod
dongguo@mongodb:~$ ps aux | grep mongod
dongguo 18013 0.0 0.1 6224 584 pts/0 S+ 06:01 0:00 grep --color=auto mongod
进程已经被杀掉了，那么目前的主从关系变成了什么样子呢？我们通过mongodb-node1上查看一下：
dongguo@mongodb-node1:~$ mongo
MongoDB shell version: 2.2.0
connecting to: test
MoboTap:PRIMARY> rs.status()
{
"set" : "MoboTap",
"date" : ISODate("2012-09-28T22:02:23Z"),
"myState" : 1,
"members" : [
{
"_id" : 1,
"name" : "10.6.1.145:27017",
"health" : 0,
"state" : 8,
"stateStr" : "(not reachable/healthy)",
"uptime" : 0,
"optime" : Timestamp(1348869269000, 1),
"optimeDate" : ISODate("2012-09-28T21:54:29Z"),
"lastHeartbeat" : ISODate("2012-09-28T22:01:12Z"),
"pingMs" : 0,
"errmsg" : "socket exception [CONNECT_ERROR] for 10.6.1.145:27017"
},
{
"_id" : 2,
"name" : "10.6.1.146:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 3111,
"optime" : Timestamp(1348869269000, 1),
"optimeDate" : ISODate("2012-09-28T21:54:29Z"),
"self" : true
},
{
"_id" : 3,
"name" : "10.6.1.147:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 816,
"optime" : Timestamp(1348869269000, 1),
"optimeDate" : ISODate("2012-09-28T21:54:29Z"),
"lastHeartbeat" : ISODate("2012-09-28T22:02:23Z"),
"pingMs" : 0,
"errmsg" : "syncing to: 10.6.1.146:27017"
},
{
"_id" : 4,
"name" : "10.6.1.148:27017",
"health" : 1,
"state" : 7,
"stateStr" : "ARBITER",
"uptime" : 369,
"lastHeartbeat" : ISODate("2012-09-28T22:02:22Z"),
"pingMs" : 0
}
],
"ok" : 1
}
很明显，我们的mongodb-node1自动接管了PRIMARY的角色，并且可以看到mongodb的状态目前变成了(not reachable/healthy)。
接着，我们重新恢复mongodb的服务，再看看主从关系有没有什么变化：
dongguo@mongodb:~$ sudo /etc/init.d/mongod start
dongguo@mongodb:~$ mongo
MongoDB shell version: 2.2.0
connecting to: test
MoboTap:SECONDARY> rs.status()
{
"set" : "MoboTap",
"date" : ISODate("2012-09-28T22:04:38Z"),
"myState" : 2,
"syncingTo" : "10.6.1.146:27017",
"members" : [
{
"_id" : 1,
"name" : "10.6.1.145:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 19,
"optime" : Timestamp(1348869269000, 1),
"optimeDate" : ISODate("2012-09-28T21:54:29Z"),
"errmsg" : "syncing to: 10.6.1.146:27017",
"self" : true
},
{
"_id" : 2,
"name" : "10.6.1.146:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 19,
"optime" : Timestamp(1348869269000, 1),
"optimeDate" : ISODate("2012-09-28T21:54:29Z"),
"lastHeartbeat" : ISODate("2012-09-28T22:04:37Z"),
"pingMs" : 0
},
{
"_id" : 3,
"name" : "10.6.1.147:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 19,
"optime" : Timestamp(1348869269000, 1),
"optimeDate" : ISODate("2012-09-28T21:54:29Z"),
"lastHeartbeat" : ISODate("2012-09-28T22:04:37Z"),
"pingMs" : 0
},
{
"_id" : 4,
"name" : "10.6.1.148:27017",
"health" : 1,
"state" : 7,
"stateStr" : "ARBITER",
"uptime" : 19,
"lastHeartbeat" : ISODate("2012-09-28T22:04:37Z"),
"pingMs" : 0
}
],
"ok" : 1
}
我们可以看到mongodb现在已经自动成为SECONDARY，而PRIMARY则仍然由mongodb-node1担任。
下面，我们来实践一下节点的动态增加与删除。
我们新增一台mongodb-node4，相关配置与mongodb-node3方法一致。
启动好mongodb-node4以后，我们在PRIMARY上添加该节点：
dongguo@mongodb-node1:~$ mongo
MongoDB shell version: 2.2.0
connecting to: test
MoboTap:PRIMARY> rs.add("10.6.1.149:27017");
{ "ok" : 1 }
MoboTap:PRIMARY> rs.status();
{
"set" : "MoboTap",
"date" : ISODate("2012-09-28T22:21:29Z"),
"myState" : 1,
"members" : [
{
"_id" : 1,
"name" : "10.6.1.145:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 1031,
"optime" : Timestamp(1348870876000, 1),
"optimeDate" : ISODate("2012-09-28T22:21:16Z"),
"lastHeartbeat" : ISODate("2012-09-28T22:21:29Z"),
"pingMs" : 0
},
{
"_id" : 2,
"name" : "10.6.1.146:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 4257,
"optime" : Timestamp(1348870876000, 1),
"optimeDate" : ISODate("2012-09-28T22:21:16Z"),
"self" : true
},
{
"_id" : 3,
"name" : "10.6.1.147:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 1962,
"optime" : Timestamp(1348870876000, 1),
"optimeDate" : ISODate("2012-09-28T22:21:16Z"),
"lastHeartbeat" : ISODate("2012-09-28T22:21:28Z"),
"pingMs" : 1
},
{
"_id" : 4,
"name" : "10.6.1.148:27017",
"health" : 1,
"state" : 7,
"stateStr" : "ARBITER",
"uptime" : 222,
"lastHeartbeat" : ISODate("2012-09-28T22:21:29Z"),
"pingMs" : 0
},
{
"_id" : 5,
"name" : "10.6.1.149:27017",
"health" : 1,
"state" : 5,
"stateStr" : "STARTUP2",
"uptime" : 13,
"optime" : Timestamp(0, 0),
"optimeDate" : ISODate("1970-01-01T00:00:00Z"),
"lastHeartbeat" : ISODate("2012-09-28T22:21:28Z"),
"pingMs" : 0,
"errmsg" : "initial sync need a member to be primary or secondary to do our initial sync"
}
],
"ok" : 1
}
目前数据还未同步完成，等待一段时间过后我们再看一下：
dongguo@mongodb-node4:~$ mongo
MongoDB shell version: 2.2.0
connecting to: test
MoboTap:SECONDARY> rs.status()
{
"set" : "MoboTap",
"date" : ISODate("2012-09-29T10:10:06Z"),
"myState" : 2,
"syncingTo" : "10.6.1.146:27017",
"members" : [
{
"_id" : 1,
"name" : "10.6.1.145:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 96,
"optime" : Timestamp(1348870876000, 1),
"optimeDate" : ISODate("2012-09-28T22:21:16Z"),
"lastHeartbeat" : ISODate("2012-09-29T10:10:04Z"),
"pingMs" : 0
},
{
"_id" : 2,
"name" : "10.6.1.146:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 96,
"optime" : Timestamp(1348870876000, 1),
"optimeDate" : ISODate("2012-09-28T22:21:16Z"),
"lastHeartbeat" : ISODate("2012-09-29T10:10:04Z"),
"pingMs" : 1
},
{
"_id" : 3,
"name" : "10.6.1.147:27017",
"health" : 1,
"state" : 2,
&n
