MongoDB4.0 副本集修改IP地址
1.将三个节点的IP地址修改
vi /etc/sysconfig/network-scripts/ifcfg-ens0
TYPE=Ethernet
#PROXY_METHOD=none
#BROWSER_ONLY=no
BOOTPROTO=static
#DEFROUTE=yes
#IPV4_FAILURE_FATAL=no
#IPV6INIT=yes
#IPV6_AUTOCONF=yes
#IPV6_DEFROUTE=yes
#IPV6_FAILURE_FATAL=no
#IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens0
#UUID=832d1893-2c22-4d36-be5c-e106826516df
DEVICE=ens192
ONBOOT=yes
IPADDR=10.2.201.30
NETMASK=255.255.255.0
GATEWAY=10.2.201.1
DNS1=114.114.114.114
2.修改三个节点的/etc/hosts文件
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
10.2.200.6 mongodb01
10.2.200.7 mongodb02
10.2.200.8 mongodb03
修改为
10.2.201.30 mongodb01
10.2.201.31 mongodb02
10.2.201.32 mongodb03
3.分别关闭三个节点的mongodb
ps -ef | grep mongo
可以使用 kill 进程号
4.启动mongodb
[root@mongodb01 logs]# mongod --replSet rs0 -f /data/mongodb4.0/mongodb.conf
about to fork child process, waiting until server is ready for connections.
forked process: 18015
child process started successfully, parent exiting
[root@mongodb02 logs]# mongod --replSet rs0 -f /data/mongodb4.0/mongodb.conf
about to fork child process, waiting until server is ready for connections.
forked process: 19305
child process started successfully, parent exiting
[root@mongodb03 logs]# mongod --replSet rs0 -f /data/mongodb4.0/mongodb.conf
about to fork child process, waiting until server is ready for connections.
forked process: 19023
child process started successfully, parent exiting
5.登陆mongodb
mongo 10.2.201.30:27017
rs0:OTHER> use admin
switched to db admin
rs0:OTHER> db.auth('root','test')
1
rs0:OTHER> config=rs.conf();
{
"_id" : "rs0",
"version" : 1,
"protocolVersion" : NumberLong(1),
"writeConcernMajorityJournalDefault" : true,
"members" : [
{
"_id" : 0,
"host" : "10.2.200.6:27017",
"arbiterOnly" : false,
"buildIndexes" : true,
"hidden" : false,
"priority" : 2,
"tags" : {
},
"slaveDelay" : NumberLong(0),
"votes" : 1
},
{
"_id" : 1,
"host" : "10.2.200.7:27017",
"arbiterOnly" : false,
"buildIndexes" : true,
"hidden" : false,
"priority" : 1,
"tags" : {
},
"slaveDelay" : NumberLong(0),
"votes" : 1
},
{
"_id" : 2,
"host" : "10.2.200.8:27017",
"arbiterOnly" : true,
"buildIndexes" : true,
"hidden" : false,
"priority" : 0,
"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("5e7d5af8fd0d9453eab56d0a")
}
}
rs0:OTHER> config.members[0].host = "10.2.201.30:27017";
10.2.201.30:27017
rs0:OTHER> config.members[1].host = "10.2.201.31:27017";
10.2.201.31:27017
rs0:OTHER> config.members[1].host = "10.2.201.32:27017";
10.2.201.32:27017
rs0:OTHER> rs.reconfig(config,{force:true});
{ "ok" : 1 }
rs0:OTHER>
rs0:OTHER>
rs0:OTHER>
rs0:OTHER>
rs0:OTHER>
rs0:SECONDARY>
rs0:SECONDARY>
rs0:SECONDARY>
rs0:SECONDARY>
rs0:SECONDARY>
rs0:PRIMARY> rs.isMaster();
{
"hosts" : [
"10.2.201.30:27017"
, "10.2.201.31:27017"
],
"arbiters" : [
"10.2.201.32:27017"
],
"setName" : "rs0",
"setVersion" : 34623,
"ismaster" : true,
"secondary" : false,
"primary" : "10.2.201.30:27017",
"me" : "10.2.201.30:27017",
"electionId" : ObjectId("7fffffff0000000000000007"),
"lastWrite" : {
"opTime" : {
"ts" : Timestamp(1603202300, 7),
"t" : NumberLong(7)
},
"lastWriteDate" : ISODate("2020-10-20T13:58:20Z"),
"majorityOpTime" : {
"ts" : Timestamp(1603202300, 7),
"t" : NumberLong(7)
},
"majorityWriteDate" : ISODate("2020-10-20T13:58:20Z")
},
"maxBsonObjectSize" : 16777216,
"maxMessageSizeBytes" : 48000000,
"maxWriteBatchSize" : 100000,
"localTime" : ISODate("2020-10-20T13:58:27.740Z"),
"logicalSessionTimeoutMinutes" : 30,
"minWireVersion" : 0,
"maxWireVersion" : 7,
"readOnly" : false,
"ok" : 1,
"operationTime" : Timestamp(1603202300, 7),
"$clusterTime" : {
"clusterTime" : Timestamp(1603202300, 7),
"signature" : {
"hash" : BinData(0,"0kGKUV1/cLGTj6jNGnsfbuEZtU0="),
"keyId" : NumberLong("6857046868682080262")
}
}
}
[root@localhost data]# mongo 10.2.201.31:27017
MongoDB shell version v4.0.1
connecting to: mongodb://10.2.201.31:27017/test?gssapiServiceName=mongodb
Implicit session: session { "id" : UUID("8ab6b494-3e7c-4914-b9a6-34162ed3e0a5") }
MongoDB server version: 4.0.1
> use admin
switched to db admin
> db.auth('root','test');
1
rs0: SECONDARY>
[root@localhost data]# mongo 10.2.201.32:27017
MongoDB shell version v4.0.1
connecting to: mongodb://10.2.201.32:27017/test?gssapiServiceName=mongodb
Implicit session: session { "id" : UUID("8ab6b494-3e7c-4914-b9a6-34162ed3e0a5") }
MongoDB server version: 4.0.1
> use admin
switched to db admin
> db.auth('root','test');
1
rs0:ARBITER>
也可以使用添加删除副本的方法修改
但是主节点的状态必须是PRIMARY>
添加副本，在主节点下输入
rs.add("ip:port")
删除副本
rs.remove("ip:port")
新增仲裁节点
rs.addArb("ip:port")
