一、安装SNMP（新版mongodb需要此依赖安装）
安装snmp服务需要的rpm包：
perl-Data-Dumper-2.145-3.el7.x86_64.rpm
net-snmp-5.7.2-28.el7_4.1.x86_64.rpm
net-snmp-agent-libs-5.7.2-28.el7_4.1.x86_64.rpm
net-snmp-libs-5.7.2-28.el7_4.1.x86_64.rpm
https://download.csdn.net/download/weixin_42903334/10901084 文档以及下载地址CSDN链接
安装步骤：
(1)将这个几rpm包放到任意目录下，进入到这个目录，执行命令 rpm -ivh net-snmp*.rpm --force
例如，将这几个rpm包放在 /root目录下，然后进入这个目录 cd /root, 然后执行命令
rpm -ivh net-snmp*.rpm --force 安装完成之后，这几个rpm包就可以删掉了。
(2)修改配置文件(/etc/snmp/snmpd.conf),大家可以参考http://www.linuxde.net/2013/02/12269.html对snmp进行符合自己要求的配置，如果你嫌麻烦，可以直接用我配置好的snmpd.conf覆盖过去，基本能满足我们日常开发需求，步骤就是把压缩包里的snmpd.conf复制到/etc/snmp/snmpd.conf目录下，覆盖。
(3)最后启动服务，执行命令 systemctl start snmpd
(4)测试验证SNMP配置的正确性，执行命令
snmpwalk -v 1 192.168.0.200 -c public system
(注意，192.168.0.200更改为自己安装snmp服务的那台机器地址)
表明安装成功!!!
二、mongodb配置，顺序一定不能错
创建相关目录
添加mongodb环境变量
echo 'export PATH=/usr/local/mongodb/bin:$PATH' >> /etc/profile
source /etc/profile
[root@roothost-10-90-2-105 mongodb4.0.2]# mkdir data logs # 数据目录和日志目录
新建配置文件(两个节点的配置一下只有存数据的目录不同)
[root@roothost-10-90-2-105 mongodb4.0.2]# cat mongodb.conf
logpath=/usr/local/mongodb/logs/mongod.log # 日志路径
logappend=true # 是否日志追加
fork=true # 后台启动
port=27017 # 端口
dbpath=/usr/local/mongodb/data/mongodb_bak/mongodb_bak_now # 数据目录
pidfilepath=/usr/local/mongodb/data/mongod.pid # pid
oplogSize=4096 # 设置oplog的大小
maxConns=640000 # 最大同时连接数 默认2000
directoryperdb=true # 设置每个数据库将被保存在一个单独的目录
bind_ip=0.0.0.0 # 监听 0.0.0.0 代表可以被访问连接
启动主节点
[root@roothost-10-90-2-105 mongodb4.0.2]#./bin/mongod -f mongodb.conf # 主
进入主节点并新建root账号
[root@roothost-10-90-2-105 mongodb4.0.2]#mongo
MongoDB shell version v4.0.2
connecting to: mongodb://127.0.0.1:27017
MongoDB server version: 4.0.2> db.createUser({ user: 'root', pwd: 'test123', roles: [ { role:"root", db: "admin" } ] });
Successfully added user: {
"user" : "root",
"roles" : [
{
"role" : "root",
"db" : "admin"
}
]}>
停止主节点
[root@roothost-10-90-2-105 mongodb4.0.2]#./bin/mongod -f mongodb.conf # 主
启用密码认证和keyfile证书验证
把主节点上生成的energy-rc.key传到从节点上，配置同主节点一样（记得对传过去的文件也得同样赋权限）
# 生成keyfiles文件[root@roothost-10-90-2-105 mongodb4.0.2]#openssl rand -base64 756 > energy-rc.key
# 设置只读权限[root@roothost-10-90-2-105 mongodb4.0.2]#chmod 400 energy-rc.key
# 配置文件中添加如下[root@roothost-10-90-2-105 mongodb4.0.2]#cat mongodb.conf
auth=true #打开认证
keyFile=/root/mongodb4.0.2/energy-rc.key #启用key验证
replSet=rs0
启动主从节点
[root@roothost-10-90-2-105 mongodb4.0.2]#./bin/mongod -f mongodb.conf # 主[root@server mongodb4.0.2]#./bin/mongod -f mongodb.conf # 从
进入主节点添加副本集节点
2018-09-05T13:26:02.859+0800 I CONTROL [main] Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify --sslDisabledProtocols 'none'
about to fork child process, waiting until server is ready for connections.
forked process: 6290
child process started successfully, parent exiting[root@roothost-10-90-2-105 mongodb4.0.2]# ./bin/mongo
MongoDB shell version v4.0.2
connecting to: mongodb://127.0.0.1:27017
MongoDB server version: 4.0.2
> use admin
switched to db admin> db.auth('root','test123')1
# 查看复制集状态> rs.status(){
"ok" : 0,
"errmsg" : "no replset config has been received",
"code" : 94,
"codeName" : "NotYetInitialized"}
# 定义配置信息,把两台节点加进来> var cfg={_id:'rs0',members:[{_id:0,host:'10.90.2.105:27017'},{_id:1,host:'10.90.2.103:27017'}]}
# 初始化复制集> rs.initiate(cfg){ "ok" : 1 }
# 查看配置信息
rs0:SECONDARY> rs.conf(){
"_id" : "rs0",
"version" : 1,
"protocolVersion" : NumberLong(1),
"writeConcernMajorityJournalDefault" : true,
"members" : [
{
"_id" : 0,
"host" : "10.90.2.105:27017",
"arbiterOnly" : false,
"buildIndexes" : true,
"hidden" : false,
"priority" : 1,
"tags" : {
},
"slaveDelay" : NumberLong(0),
"votes" : 1
},
{
"_id" : 1,
"host" : "10.90.2.103:27017",
"arbiterOnly" : false,
"buildIndexes" : true,
"hidden" : false,
"priority" : 1,
"tags" : {
},
"slaveDelay" : NumberLong(0),
"votes" : 1
}
],
"settings" : {
"chainingAllowed" : true,
"heartbeatIntervalMillis" : 2000,
"heartbeatTimeoutSecs" : 10,
"electionTimeoutMillis" : 10000,
"catchUpTimeoutMillis" : -1,
"catchUpTakeoverDelayMillis" : 30000,
"getLastErrorModes" : {
},
"getLastErrorDefaults" : {
"w" : 1,
"wtimeout" : 0
},
"replicaSetId" : ObjectId("5b8f65bd5eb3d94f12e22e96")
}}
rs0:SECONDARY> rs.status(){
"set" : "rs0",
"date" : ISODate("2018-09-05T05:13:09.326Z"),
"myState" : 2,
"term" : NumberLong(0),
"syncingTo" : "",
"syncSourceHost" : "",
"syncSourceId" : -1,
"heartbeatIntervalMillis" : NumberLong(2000),
"optimes" : {
"lastCommittedOpTime" : {
"ts" : Timestamp(0, 0),
"t" : NumberLong(-1)
},
"appliedOpTime" : {
"ts" : Timestamp(1536124349, 1),
"t" : NumberLong(-1)
},
"durableOpTime" : {
"ts" : Timestamp(1536124349, 1),
"t" : NumberLong(-1)
}
},
"lastStableCheckpointTimestamp" : Timestamp(0, 0),
"members" : [
{
"_id" : 0,
"name" : "10.90.2.105:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 191,
"optime" : {
"ts" : Timestamp(1536124349, 1),
"t" : NumberLong(-1)
},
"optimeDate" : ISODate("2018-09-05T05:12:29Z"),
"syncingTo" : "",
"syncSourceHost" : "",
"syncSourceId" : -1,
"infoMessage" : "could not find member to sync from",
"configVersion" : 1,
"self" : true,
"lastHeartbeatMessage" : ""
},
{
"_id" : 1,
"name" : "10.90.2.103:27017",
"health" : 1,
"state" : 0,
"stateStr" : "STARTUP",
"uptime" : 39,
"optime" : {
"ts" : Timestamp(0, 0),
"t" : NumberLong(-1)
},
"optimeDurable" : {
"ts" : Timestamp(0, 0),
"t" : NumberLong(-1)
},
"optimeDate" : ISODate("1970-01-01T00:00:00Z"),
"optimeDurableDate" : ISODate("1970-01-01T00:00:00Z"),
"lastHeartbeat" : ISODate("2018-09-05T05:13:09.261Z"),
"lastHeartbeatRecv" : ISODate("1970-01-01T00:00:00Z"),
"pingMs" : NumberLong(0),
"lastHeartbeatMessage" : "",
"syncingTo" : "",
"syncSourceHost" : "",
"syncSourceId" : -1,
"infoMessage" : "",
"configVersion" : -2
}
],
"ok" : 1}
rs0:SECONDARY>
现在退出连接重新连接下主库，主节点的状态就变成PRIMARY
[root@roothost-10-90-2-105 mongodb4.0.2]#./bin/mongod --shutdown -f mongodb.conf # 主[root@roothost-10-90-2-105 mongodb4.0.2]#./bin/mongod -f mongodb.conf # 主[root@roothost-10-90-2-105 mongodb4.0.2]# ./bin/mongo
MongoDB shell version v4.0.2
connecting to: mongodb://127.0.0.1:27017
MongoDB server version: 4.0.2
# 需要认证才能查看
rs0:SECONDARY> show dbs;2018-09-05T13:26:33.214+0800 E QUERY [js] Error: listDatabases failed:{
"operationTime" : Timestamp(1536125178, 1),
"ok" : 0,
"errmsg" : "command listDatabases requires authentication",
"code" : 13,
"codeName" : "Unauthorized",
"$clusterTime" : {
"clusterTime" : Timestamp(1536125178, 1),
"signature" : {
"hash" : BinData(0,"IszQmtleFm3uVO+Uc8luktG9uYM="),
"keyId" : NumberLong("6597607397777211393")
}
}} :
_getErrorWithCode@src/mongo/shell/utils.js:25:13
Mongo.prototype.getDBs@src/mongo/shell/mongo.js:67:1
shellHelper.show@src/mongo/shell/utils.js:876:19
shellHelper@src/mongo/shell/utils.js:766:15
@(shellhelp2):1:1
# 认证
rs0:PRIMARY> use admin
switched to db admin
rs0:PRIMARY> db.auth('root','test123')1
# 可以看到,当前节点为主了
rs0:PRIMARY> db.isMaster();{
"hosts" : [
"10.90.2.105:27017",
"10.90.2.103:27017"
],
"setName" : "rs0",
"setVersion" : 1,
"ismaster" : true,
"secondary" : false,
"primary" : "10.90.2.105:27017",
"me" : "10.90.2.105:27017",
"electionId" : ObjectId("7fffffff0000000000000001"),
"lastWrite" : {
"opTime" : {
"ts" : Timestamp(1536125327, 1),
"t" : NumberLong(1)
},
"lastWriteDate" : ISODate("2018-09-05T05:28:47Z"),
"majorityOpTime" : {
"ts" : Timestamp(1536125327, 1),
"t" : NumberLong(1)
},
"majorityWriteDate" : ISODate("2018-09-05T05:28:47Z")
},
"maxBsonObjectSize" : 16777216,
"maxMessageSizeBytes" : 48000000,
"maxWriteBatchSize" : 100000,
"localTime" : ISODate("2018-09-05T05:28:57.348Z"),
"logicalSessionTimeoutMinutes" : 30,
"minWireVersion" : 0,
"maxWireVersion" : 7,
"readOnly" : false,
"ok" : 1,
"operationTime" : Timestamp(1536125327, 1),
"$clusterTime" : {
"clusterTime" : Timestamp(1536125327, 1),
"signature" : {
"hash" : BinData(0,"DUnksVz3DkGjfXNiuFbVDPRjtgg="),
"keyId" : NumberLong("6597607397777211393")
}
}}
现在副本集主从状态已经建立了,接下来就测试下数据能不能正常同步
测试同步
在主上插入一条数据
rs0:PRIMARY> use pay
switched to db pay
rs0:PRIMARY> db.pay.insert({"_id":"1"})WriteResult({ "nInserted" : 1 })
rs0:PRIMARY>
然后在从节点上查看是否已同步
rs0:SECONDARY> use admin
switched to db admin
rs0:SECONDARY> db.auth('root','test123')
1
rs0:SECONDARY> show dbs;
2018-09-05T13:31:49.563+0800 E QUERY [js] Error: listDatabases failed:{
"operationTime" : Timestamp(1536125517, 1),
"ok" : 0,
"errmsg" : "not master and slaveOk=false",
"code" : 13435,
"codeName" : "NotMasterNoSlaveOk",
"$clusterTime" : {
"clusterTime" : Timestamp(1536125517, 1),
"signature" : {
"hash" : BinData(0,"KIttQEB/e0mzlQvqPJzeLWZgREM="),
"keyId" : NumberLong("6597607397777211393")
}
}} :
_getErrorWithCode@src/mongo/shell/utils.js:25:13
Mongo.prototype.getDBs@src/mongo/shell/mongo.js:67:1
shellHelper.show@src/mongo/shell/utils.js:876:19
shellHelper@src/mongo/shell/utils.js:766:15
@(shellhelp2):1:1
# 默认因为SECONDARY是不允许读写的,如果非要解决,方法如下:
rs0:SECONDARY> db.getMongo().setSlaveOk();
# 可以看到数据已经同步过来了
rs0:SECONDARY> show dbs;
admin 0.000GB
config 0.000GB
local 0.000GB
pay 0.000GB
rs0:SECONDARY>use pay
rs0:SECONDARY> db.pay.find().count()
1
rs0:SECONDARY> db.pay.find(){ "_id" : "1" }
三、mongodb配置xml文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mongo="http://www.springframework.org/schema/data/mongo"
xsi:schemaLocation="http://www.springframework.org/schema/data/mongo http://www.springframework.org/schema/data/mongo/spring-mongo.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd">
<mongo:mongo-client id="mongofs" replica-set="${mongodb.host}:${mongodb.port},${mongodb.host2}:${mongodb.port}" credentials="${mongodb.user}:${mongodb.pwd}@${mongodb.defaultDbName}">
<mongo:client-options connections-per-host="8"
threads-allowed-to-block-for-connection-multiplier="4"
connect-timeout="1000"
read-preference="primaryPreferred"
max-wait-time="1500"
socket-keep-alive="true"
socket-timeout="1500"
write-concern="NORMAL"/>
</mongo:mongo-client>
<mongo:db-factory id="mongofsDbFactory" dbname="pay" mongo-ref="mongofs"/>
<mongo:mapping-converter id="mongofsConverter" db-factory-ref="mongofsDbFactory"/>
<bean id="gridFsTemplate" class="com.silverdata.smart.mongodb.gridfs.GenericGridFsTemplate">
<constructor-arg ref="mongofsDbFactory"/>
<constructor-arg ref="mongofsConverter"/>
</bean>
</beans>