mongodb高可用Replica Set
2015-08-06 17:55
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*************************************************************** 第一部分：系统配置 *************************************************************** ---0.配置yum源 cd /etc/yum.repos.d mv CentOS-Base.repo CentOS-Base.repo.old wget http://mirrors.163.com/.help/CentOS6-Base-163.repo yum makecache 检查可更新的rpm包 #yum check-update 更新所有的rpm包 #yum update ---1.安全加固 1.1 SELinux /usr/sbin/sestatus -v | grep "SELinux status" vi /etc/selinux/config SELINUX=disabled 1.2 限制哪些账户能切换到root 1) #vi /etc/pam.d/su auth required /lib/security/pam_wheel.so group=dba groupadd dba useradd -g dba sysadmin 或将用户修改组: #usermod -Gdba sysadmin 将sysadmin用户加入到dba组 passwd sysadmin 1.3 修改ssh端口、禁止root账户远程登录 #vi /etc/ssh/sshd_config Port 16335 PermitRootLogin no PermitEmptyPasswords no # /etc/init.d/sshd restart 1.4 允许普通用户执行sudo vi /etc/sudoers 98 root ALL=(ALL) ALL 99 sysadmin ALL=(ALL) ALL 109 sysadmin ALL=(ALL) NOPASSWD: ALL #不需输入密码,直接切换即可 $ sudo su - -----设置别名让普通用户快速切换到root echo "alias sudor=\"sudo su -\"" >> ~/.bash_profile source ~/.bash_profile 1.5 rz yum install lrzsz -y ---2.在proc中关闭NUMA rpm -qa | grep numactl yum install -y numactl # echo 0 > /proc/sys/vm/zone_reclaim_mode # sysctl -w vm.zone_reclaim_mode=0 ---3.修改最大连接数 #vi /etc/security/limits.conf * soft nofile 25000 * hard nofile 25000 ---4.关闭防火墙 chkconfig --level 123456 iptables off service iptables stop ---5.修改hosts vi /etc/hosts 192.168.50.110 mg01 mg01.atalas.com 192.168.50.120 mg02 mg02.atalas.com 192.168.50.130 mg03 mg03.atalas.com *************************************************************** 第二部分：mongodb安装 *************************************************************** ---1.安装mongodb --1.1 安装openssl yum install -y openssl-devel openssl --1.2 安装mongodb mkdir /soft && cd /soft && ls && rz tar xvzf mongodb-linux-x86_64-rhel62-3.0.5.gz mkdir -p /data/mongodb mkdir -p /data/mongodb/db mkdir -p /data/mongodb/logs mkdir -p /data/mongodb/apps mkdir -p /data/mongodb/{db,logs,apps} touch /data/mongodb/logs/mongodb.log chmod -R 777 /data/mongodb/logs/mongodb.log mv mongodb-linux-x86_64-rhel62-3.0.5 /data/mongodb/apps/mongodb cd /data/mongodb/apps/mongodb/bin vi /data/mongodb/apps/mongodb/bin/mongodb.conf #mg01 port=27017 #端口 dbpath= /data/mongodb/db #数据文件存放目录 logpath= /data/mongodb/logs/mongodb.log #日志文件存放目录 logappend=true #使用追加的方式写日志 fork=true #以守护程序的方式启用，即在后台运行 maxConns=5000 #最大同时连接数 默认2000 bind_ip=127.0.0.1,192.168.50.110 #只允许通过局域网IP192.168.50.110及本机访问 noauth=true #不启用验证 nohttpinterface=true rest=false syncdelay=60 #mg02 port=27017 #端口 dbpath= /data/mongodb/db #数据文件存放目录 logpath= /data/mongodb/logs/mongodb.log #日志文件存放目录 logappend=true #使用追加的方式写日志 fork=true #以守护程序的方式启用，即在后台运行 maxConns=5000 #最大同时连接数 默认2000 bind_ip=127.0.0.1,192.168.50.120 #只允许通过局域网IP192.168.50.120及本机访问 noauth=true #不启用验证 nohttpinterface=true rest=false syncdelay=60 #mg03 port=27017 #端口 dbpath= /data/mongodb/db #数据文件存放目录 logpath= /data/mongodb/logs/mongodb.log #日志文件存放目录 logappend=true #使用追加的方式写日志 fork=true #以守护程序的方式启用，即在后台运行 maxConns=5000 #最大同时连接数 默认2000 bind_ip=127.0.0.1,192.168.50.130 #只允许通过局域网IP192.168.50.130及本机访问 noauth=true #不启用验证 nohttpinterface=true rest=false syncdelay=60 --1.3禁用hugepage echo never > /sys/kernel/mm/transparent_hugepage/enabled echo never > /sys/kernel/mm/transparent_hugepage/defrag --1.4 启动mongodb 所有节点: #numactl --interleave=all /data/mongodb/apps/mongodb/bin/mongod \ --config /data/mongodb/apps/mongodb/bin/mongodb.conf --replSet wind about to fork child process, waiting until server is ready for connections. forked process: 3765 child process started successfully, parent exiting ---1.5mongodb连接 # /data/mongodb/apps/mongodb/bin/mongo MongoDB shell version: 3.0.5 connecting to: test Welcome to the MongoDB shell. For interactive help, type "help". For more comprehensive documentation, see http://docs.mongodb.org/ Questions? Try the support group http://groups.google.com/group/mongodb-user Server has startup warnings: 2015-08-03T12:39:33.996+0800 I CONTROL [initandlisten] ** WARNING: You are running this process as the root user, which is not recommended. 2015-08-03T12:39:33.996+0800 I CONTROL [initandlisten] 2015-08-03T12:39:33.996+0800 I CONTROL [initandlisten] 2015-08-03T12:39:33.996+0800 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'. 2015-08-03T12:39:33.996+0800 I CONTROL [initandlisten] ** We suggest setting it to 'never' 2015-08-03T12:39:33.996+0800 I CONTROL [initandlisten] 2015-08-03T12:39:33.996+0800 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'. 2015-08-03T12:39:33.996+0800 I CONTROL [initandlisten] ** We suggest setting it to 'never' 2015-08-03T12:39:33.996+0800 I CONTROL [initandlisten] > /******************解决办法 不重启服务器的情况下解决办法,在Linux下执行： echo never > /sys/kernel/mm/transparent_hugepage/enabled echo never > /sys/kernel/mm/transparent_hugepage/defrag 服务器重启后立即生效办法： # vi /etc/rc.local if test -f /sys/kernel/mm/transparent_hugepage/enabled; then echo never > /sys/kernel/mm/transparent_hugepage/enabled fi if test -f /sys/kernel/mm/transparent_hugepage/defrag; then echo never > /sys/kernel/mm/transparent_hugepage/defrag fi ********************/ ----1.6正常停止方法: # ps aux | grep mongod root 3765 1.9 0.1 500832 58224 ? Sl 12:38 0:02 /data/mongodb/apps/mongodb/bin/mongod --config /data/mongodb/apps/mongodb/bin/mongodb.conf # kill -2 3765 或 # /data/mongodb/apps/mongodb/bin/mongo -port 27107 > use admin; > db.shutdownServer(); ----1.7 开机自动启动mongodb # vi /etc/rc.d/rc.local #启动mongodb rm -rf /data/mongodb/db/mongod.lock numactl --interleave=all /data/mongodb/apps/mongodb/bin/mongod --config /data/mongodb/apps/mongodb/bin/mongodb.conf --replSet wind #hugepage echo never > /sys/kernel/mm/transparent_hugepage/enabled echo never > /sys/kernel/mm/transparent_hugepage/defrag 说明：启动时必须加numactl --interleave=all *************************************************************** 第三部分：副本集的配置 *************************************************************** 0.变量 echo "alias date='date \"+%Y-%m-%d %H:%M:%S\" ' ">>~/.bash_profile && source ~/.bash_profile echo "export PATH=/data/mongodb/apps/mongodb/bin:$PATH" >>/etc/profile && source /etc/profile 1.等到三台机器都启动完了之后。使用mongo客户端登录其中一台mongod服务器 mongo --port 27017 use admin; config = {_id:"wind",members:[ ... {_id:0,host:"192.168.50.110:27017"}, ... {_id:1,host:"192.168.50.120:27017"}, ... {_id:2,host:"192.168.50.130:27017"}] }; #输出结果: { "_id" : "wind", "members" : [ { "_id" : 0, "host" : "192.168.50.110:27017" }, { "_id" : 1, "host" : "192.168.50.120:27017" }, { "_id" : 2, "host" : "192.168.50.130:27017" } ] } #初始化副本集配置 rs.initiate(config); #输出结果: { "ok" : 1 } #查看集群节点的状态 rs.status(); { "set" : "wind", "date" : ISODate("2015-08-04T06:08:38.151Z"), "myState" : 1, "members" : [ { "_id" : 0, "name" : "192.168.50.110:27017", "health" : 1, "state" : 1, "stateStr" : "PRIMARY", "uptime" : 1604, "optime" : Timestamp(1438668391, 1), "optimeDate" : ISODate("2015-08-04T06:06:31Z"), "electionTime" : Timestamp(1438668395, 1), "electionDate" : ISODate("2015-08-04T06:06:35Z"), "configVersion" : 1, "self" : true }, { "_id" : 1, "name" : "192.168.50.120:27017", "health" : 1, "state" : 2, "stateStr" : "SECONDARY", "uptime" : 126, "optime" : Timestamp(1438668391, 1), "optimeDate" : ISODate("2015-08-04T06:06:31Z"), "lastHeartbeat" : ISODate("2015-08-04T06:08:36.784Z"), "lastHeartbeatRecv" : ISODate("2015-08-04T06:08:37.012Z"), "pingMs" : 6, "configVersion" : 1 }, { "_id" : 2, "name" : "192.168.50.130:27017", "health" : 1, "state" : 2, "stateStr" : "SECONDARY", "uptime" : 126, "optime" : Timestamp(1438668391, 1), "optimeDate" : ISODate("2015-08-04T06:06:31Z"), "lastHeartbeat" : ISODate("2015-08-04T06:08:37.010Z"), "lastHeartbeatRecv" : ISODate("2015-08-04T06:08:37.006Z"), "pingMs" : 3, "configVersion" : 1 } ], "ok" : 1 } *************************************************************** 第四部分：副本集的验证测试 *************************************************************** -------1.测试副本集数据复制功能 ---1.1 主节点192.168.50.110： mongo --host 127.0.0.1 --port 27017 #建立test 数据库。 use test; #tblorders表插入数据 db.tblorders.insert( { orderno: "A2014089901", pname: "tblorders", scity:"beijing",price : 670 } ); db.tblorders.insert( { orderno: "A2014089902", pname: "snow", scity:"成都" ,price : 1270} ); db.tblorders.insert( { orderno: "A2014089903", pname: "kiki", scity:"重庆",price : 9780 } ); wind:PRIMARY> db.tblorders.find().forEach(printjson); { "_id" : ObjectId("55c05976985cda7c357bccd0"), "orderno" : "A2014089901", "pname" : "tblorders", "scity" : "beijing", "price" : 670 } { "_id" : ObjectId("55c05976985cda7c357bccd1"), "orderno" : "A2014089902", "pname" : "snow", "scity" : "成都", "price" : 1270 } { "_id" : ObjectId("55c05976985cda7c357bccd2"), "orderno" : "A2014089903", "pname" : "kiki", "scity" : "重庆", "price" : 9780 } --1.2 副本节点192.168.5.120 mongo 192.168.50.120:27017 mongo --host 127.0.0.1 --port 27017 #使用jinri数据库。 wind:SECONDARY> use jinri; switched to db jinri wind:SECONDARY> show tables; 2015-08-04T14:22:48.436+0800 E QUERY Error: listCollections failed: { "note" : "from execCommand", "ok" : 0, "errmsg" : "not master" } at Error (<anonymous>) at DB._getCollectionInfosCommand (src/mongo/shell/db.js:646:15) at DB.getCollectionInfos (src/mongo/shell/db.js:658:20) at DB.getCollectionNames (src/mongo/shell/db.js:669:17) at shellHelper.show (src/mongo/shell/utils.js:625:12) at shellHelper (src/mongo/shell/utils.js:524:36) at (shellhelp2):1:1 at src/mongo/shell/db.js:646 #mongodb默认是从主节点读写数据的，副本节点上不允许读，需要设置副本节点可以读。 wind:SECONDARY> db.getMongo().setSlaveOk(); wind:SECONDARY> show tables; system.indexes tblorders wind:SECONDARY> db.tblorders.find().forEach(printjson) { "_id" : ObjectId("55c05976985cda7c357bccd0"), "orderno" : "A2014089901", "pname" : "tblorders", "scity" : "beijing", "price" : 670 } { "_id" : ObjectId("55c05976985cda7c357bccd1"), "orderno" : "A2014089902", "pname" : "snow", "scity" : "成都", "price" : 1270 } { "_id" : ObjectId("55c05976985cda7c357bccd2"), "orderno" : "A2014089903", "pname" : "kiki", "scity" : "重庆", "price" : 9780 } --1.3 副本节点192.168.5.130 mongo 192.168.50.130:27017 mongo --host 127.0.0.1 --port 27017 wind:SECONDARY> use jinri; switched to db jinri wind:SECONDARY> show tables; 2015-08-04T14:37:56.222+0800 E QUERY Error: listCollections failed: { "note" : "from execCommand", "ok" : 0, "errmsg" : "not master" } at Error (<anonymous>) at DB._getCollectionInfosCommand (src/mongo/shell/db.js:646:15) at DB.getCollectionInfos (src/mongo/shell/db.js:658:20) at DB.getCollectionNames (src/mongo/shell/db.js:669:17) at shellHelper.show (src/mongo/shell/utils.js:625:12) at shellHelper (src/mongo/shell/utils.js:524:36) at (shellhelp2):1:1 at src/mongo/shell/db.js:646 wind:SECONDARY> db.getMongo().setSlaveOk(); wind:SECONDARY> show tables; system.indexes tblorders wind:SECONDARY> db.tblorders.find().forEach(printjson) { "_id" : ObjectId("55c05976985cda7c357bccd0"), "orderno" : "A2014089901", "pname" : "tblorders", "scity" : "beijing", "price" : 670 } { "_id" : ObjectId("55c05976985cda7c357bccd1"), "orderno" : "A2014089902", "pname" : "snow", "scity" : "成都", "price" : 1270 } { "_id" : ObjectId("55c05976985cda7c357bccd2"), "orderno" : "A2014089903", "pname" : "kiki", "scity" : "重庆", "price" : 9780 } --------2.测试副本集故障转移功能 2.1 关闭110节点 mongo 192.168.50.110:27017 use admin; db.shutdownServer(); 2.2自动选举一个节点为主节点130 2015-08-04T14:52:43.014+0800 I NETWORK [ReplExecNetThread-4] Socket recv() timeout 192.168.50.110:27017 2015-08-04T14:52:43.014+0800 I NETWORK [ReplExecNetThread-4] SocketException: remote: 192.168.50.110:27017 error: 9001 socket exception [RECV_TIMEOUT] server [192.168.50.110:27017] 2015-08-04T14:52:43.014+0800 I NETWORK [ReplExecNetThread-4] DBClientCursor::init call() failed 2015-08-04T14:52:43.062+0800 I REPL [ReplicationExecutor] Error in heartbeat request to 192.168.50.110:27017; Location10276 DBClientBase::findN: transport error: 192.168.50.110:27017 ns: admin.$cmd query: { replSetHeartbeat: "wind", pv: 1, v: 1, from: "192.168.50.130:27017", fromId: 2, checkEmpty: false } 2015-08-04T14:52:43.062+0800 I REPL [ReplicationExecutor] Standing for election 2015-08-04T14:52:43.064+0800 I REPL [ReplicationExecutor] replSet possible election tie; sleeping 90ms until 2015-08-04T14:52:43.154+0800 2015-08-04T14:52:43.154+0800 I REPL [ReplicationExecutor] Standing for election 2015-08-04T14:52:43.163+0800 I REPL [ReplicationExecutor] replSet info electSelf 2015-08-04T14:52:43.165+0800 I REPL [ReplicationExecutor] received vote: 1 votes from 192.168.50.120:27017 2015-08-04T14:52:43.165+0800 I REPL [ReplicationExecutor] replSet election succeeded, assuming primary role 2015-08-04T14:52:43.165+0800 I REPL [ReplicationExecutor] transition to PRIMARY 2015-08-04T14:52:44.387+0800 I NETWORK [conn167] end connection 192.168.50.120:51506 (2 connections now open) 2015-08-04T14:52:44.388+0800 I NETWORK [initandlisten] connection accepted from 192.168.50.120:51507 #169 (3 connections now open) 2015-08-04T14:52:50.112+0800 W NETWORK [ReplExecNetThread-5] Failed to connect to 192.168.50.110:27017 after 5000 milliseconds, giving up. 2.3 新的主节点130插入数据 db.tblorders.insert( { orderno: "110", pname: "jyl", scity:"重庆",price : 2780 } ); 2.4 检查120节点数据是否同步 mongo 192.168.50.120:27017 db.getMongo().setSlaveOk(); wind:SECONDARY> db.tblorders.find().forEach(printjson) { "_id" : ObjectId("55c05976985cda7c357bccd0"), "orderno" : "A2014089901", "pname" : "tblorders", "scity" : "beijing", "price" : 670 } { "_id" : ObjectId("55c05976985cda7c357bccd1"), "orderno" : "A2014089902", "pname" : "snow", "scity" : "成都", "price" : 1270 } { "_id" : ObjectId("55c05976985cda7c357bccd2"), "orderno" : "A2014089903", "pname" : "kiki", "scity" : "重庆", "price" : 9780 } { "_id" : ObjectId("55c05e3a985cda7c357bccd3"), "orderno" : "A2014089904", "pname" : "atalas", "scity" : "乌鲁木齐", "sdate" : "2015-08-08" } { "_id" : ObjectId("55c062ad929d01d23682d297"), "orderno" : "110", "pname" : "jyl", "scity" : "重庆", "price" : 2780 } wind:SECONDARY> 2.5 重新启动110节点 #建议将下面的内容设置为自动启动 echo never > /sys/kernel/mm/transparent_hugepage/enabled echo never > /sys/kernel/mm/transparent_hugepage/defrag #启动节点 numactl --interleave=all /data/mongodb/apps/mongodb/bin/mongod --config /data/mongodb/apps/mongodb/bin/mongodb.conf --replSet wind mongo 192.168.50.110:27017 db.getMongo().setSlaveOk(); db.tblorders.find().forEach(printjson) --------3.副本节点删除 wind:PRIMARY> rs.status(); { "set" : "wind", "date" : ISODate("2015-08-04T07:24:17.085Z"), "myState" : 1, "members" : [ { "_id" : 0, "name" : "192.168.50.110:27017", "health" : 1, "state" : 2, "stateStr" : "SECONDARY", "uptime" : 414, "optime" : Timestamp(1438671533, 1), "optimeDate" : ISODate("2015-08-04T06:58:53Z"), "lastHeartbeat" : ISODate("2015-08-04T07:24:15.313Z"), "lastHeartbeatRecv" : ISODate("2015-08-04T07:24:15.113Z"), "pingMs" : 9, "configVersion" : 1 }, { "_id" : 1, "name" : "192.168.50.120:27017", "health" : 1, "state" : 2, "stateStr" : "SECONDARY", "uptime" : 1062, "optime" : Timestamp(1438671533, 1), "optimeDate" : ISODate("2015-08-04T06:58:53Z"), "lastHeartbeat" : ISODate("2015-08-04T07:24:15.766Z"), "lastHeartbeatRecv" : ISODate("2015-08-04T07:24:15.111Z"), "pingMs" : 1, "configVersion" : 1 }, { "_id" : 2, "name" : "192.168.50.130:27017", "health" : 1, "state" : 1, "stateStr" : "PRIMARY", "uptime" : 4753, "optime" : Timestamp(1438671533, 1), "optimeDate" : ISODate("2015-08-04T06:58:53Z"), "electionTime" : Timestamp(1438671994, 1), "electionDate" : ISODate("2015-08-04T07:06:34Z"), "configVersion" : 1, "self" : true } ], "ok" : 1 } #删除节点110 rs.remove("192.168.50.110:27017"); wind:PRIMARY> rs.status(); { "set" : "wind", "date" : ISODate("2015-08-04T07:25:11.988Z"), "myState" : 1, "members" : [ { "_id" : 1, "name" : "192.168.50.120:27017", "health" : 1, "state" : 2, "stateStr" : "SECONDARY", "uptime" : 1117, "optime" : Timestamp(1438671533, 1), "optimeDate" : ISODate("2015-08-04T06:58:53Z"), "lastHeartbeat" : ISODate("2015-08-04T07:25:10.003Z"), "lastHeartbeatRecv" : ISODate("2015-08-04T07:25:11.545Z"), "pingMs" : 12, "configVersion" : 1 }, { "_id" : 2, "name" : "192.168.50.130:27017", "health" : 1, "state" : 1, "stateStr" : "PRIMARY", "uptime" : 4807, "optime" : Timestamp(1438673110, 1), "optimeDate" : ISODate("2015-08-04T07:25:10Z"), "electionTime" : Timestamp(1438671994, 1), "electionDate" : ISODate("2015-08-04T07:06:34Z"), "configVersion" : 2, "self" : true } ], "ok" : 1 } #测试130主节点加入数据是否同步到120 use wind; db.tblorders.insert( { orderno: "1001", pname: "jinri", scity:"pek",price : 1650 } ); mongo 192.168.50.120:27017 db.getMongo().setSlaveOk(); wind:SECONDARY> db.tblorders.find().forEach(printjson) { "_id" : ObjectId("55c0693a0bef81df34afc6d2"), "orderno" : "1001", "pname" : "jinri", "scity" : "pek", "price" : 1650 } --------4.副本节点添加 wind:PRIMARY> rs.status(); { "set" : "wind", "date" : ISODate("2015-08-04T07:34:01.731Z"), "myState" : 1, "members" : [ { "_id" : 1, "name" : "192.168.50.120:27017", "health" : 1, "state" : 2, "stateStr" : "SECONDARY", "uptime" : 1647, "optime" : Timestamp(1438673359, 2), "optimeDate" : ISODate("2015-08-04T07:29:19Z"), "lastHeartbeat" : ISODate("2015-08-04T07:34:01.589Z"), "lastHeartbeatRecv" : ISODate("2015-08-04T07:34:01.338Z"), "pingMs" : 1, "syncingTo" : "192.168.50.130:27017", "configVersion" : 2 }, { "_id" : 2, "name" : "192.168.50.130:27017", "health" : 1, "state" : 1, "stateStr" : "PRIMARY", "uptime" : 5337, "optime" : Timestamp(1438673359, 2), "optimeDate" : ISODate("2015-08-04T07:29:19Z"), "electionTime" : Timestamp(1438671994, 1), "electionDate" : ISODate("2015-08-04T07:06:34Z"), "configVersion" : 2, "self" : true } ], "ok" : 1 } #增加节点 rs.add("192.168.50.110:27017"); wind:PRIMARY> rs.status(); { "set" : "wind", "date" : ISODate("2015-08-04T07:34:39.529Z"), "myState" : 1, "members" : [ { "_id" : 1, "name" : "192.168.50.120:27017", "health" : 1, "state" : 2, "stateStr" : "SECONDARY", "uptime" : 1685, "optime" : Timestamp(1438673676, 1), "optimeDate" : ISODate("2015-08-04T07:34:36Z"), "lastHeartbeat" : ISODate("2015-08-04T07:34:38.789Z"), "lastHeartbeatRecv" : ISODate("2015-08-04T07:34:39.514Z"), "pingMs" : 6, "configVersion" : 3 }, { "_id" : 2, "name" : "192.168.50.130:27017", "health" : 1, "state" : 1, "stateStr" : "PRIMARY", "uptime" : 5375, "optime" : Timestamp(1438673676, 1), "optimeDate" : ISODate("2015-08-04T07:34:36Z"), "electionTime" : Timestamp(1438671994, 1), "electionDate" : ISODate("2015-08-04T07:06:34Z"), "configVersion" : 3, "self" : true }, { "_id" : 3, "name" : "192.168.50.110:27017", "health" : 1, "state" : 2, "stateStr" : "SECONDARY", "uptime" : 0, "optime" : Timestamp(1438673676, 1), "optimeDate" : ISODate("2015-08-04T07:34:36Z"), "lastHeartbeat" : ISODate("2015-08-04T07:34:38.791Z"), "lastHeartbeatRecv" : ISODate("2015-08-04T07:34:38.790Z"), "pingMs" : 6, "syncingTo" : "192.168.50.130:27017", "configVersion" : 3 } ], "ok" : 1 } #130插入数据验证 use wind; db.tblorders.insert( { orderno: "1002", pname: "jinri", scity:"pvg",price : 1750 } ); wind:PRIMARY> db.tblorders.find().forEach(printjson); { "_id" : ObjectId("55c069cf0bef81df34afc6d3"), "orderno" : "1001", "pname" : "jinri", "scity" : "pek", "price" : 1650 } { "_id" : ObjectId("55c06dcd1449f1bbe0a56e9b"), "orderno" : "1002", "pname" : "jinri", "scity" : "pvg", "price" : 1750 } #110和120验证 mongo 192.168.50.110:27017 wind:SECONDARY> rs.slaveOk(); wind:SECONDARY> use wind; switched to db wind wind:SECONDARY> db.tblorders.find().forEach(printjson); { "_id" : ObjectId("55c069cf0bef81df34afc6d3"), "orderno" : "1001", "pname" : "jinri", "scity" : "pek", "price" : 1650 } { "_id" : ObjectId("55c06dcd1449f1bbe0a56e9b"), "orderno" : "1002", "pname" : "jinri", "scity" : "pvg", "price" : 1750 } wind:SECONDARY> rs.slaveOk(); wind:SECONDARY> use wind; switched to db wind wind:SECONDARY> db.tblorders.find().forEach(printjson); { "_id" : ObjectId("55c069cf0bef81df34afc6d3"), "orderno" : "1001", "pname" : "jinri", "scity" : "pek", "price" : 1650 } { "_id" : ObjectId("55c06dcd1449f1bbe0a56e9b"), "orderno" : "1002", "pname" : "jinri", "scity" : "pvg", "price" : 1750 }
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