使用docker快速构建mongodb服务,单点mongodb服务不支持事务,单点服务也可以创建副本集
拉取镜像:
docker pull mongo:latest
创建3个mongodb服务:
docker run --name m0 -h 10.100.1.13 -p 37017:27017 -v /root/docker/mongo/m0-data/db:/data/db -d mongo --replSet "rs"
docker run --name m1 -h 10.100.1.13 -p 47017:27017 -v /root/docker/mongo/m1-data/db:/data/db -d mongo --replSet "rs"
docker run --name m2 -h 10.100.1.13 -p 57017:27017 -v /root/docker/mongo/m2-data/db:/data/db -d mongo --replSet "rs"
-h 宿主机器 hostname
-p 端口映射
-v 存储目录映射到宿主机器
--replSet "rs" 副本集名称
没有指定-net参数,默认使用桥接模式,查看为容器分配ip地址
docker inspect m0 | grep IPAddress
docker exec -it m0 mongo --host 10.100.1.13 --port 37017
config={_id:"rs",members:[{_id:0,host:"10.100.1.13:37017"},{_id:1,host:"10.100.1.13:47017"},{_id:2,host:"10.100.1.13:57017",arbiterOnly:true}]};
rs.initiate(config)
查看副本集状态
rs.status()
rs:PRIMARY> rs.status()
{
"set" : "rs",
"date" : ISODate("2019-12-24T01:03:46.573Z"),
"myState" : 1,
"term" : NumberLong(1),
"syncingTo" : "",
"syncSourceHost" : "",
"syncSourceId" : -1,
"heartbeatIntervalMillis" : NumberLong(2000),
"majorityVoteCount" : 2,
"writeMajorityCount" : 2,
"optimes" : {
"lastCommittedOpTime" : {
"ts" : Timestamp(1577149417, 1),
"t" : NumberLong(1)
},
"lastCommittedWallTime" : ISODate("2019-12-24T01:03:37.287Z"),
"readConcernMajorityOpTime" : {
"ts" : Timestamp(1577149417, 1),
"t" : NumberLong(1)
},
"readConcernMajorityWallTime" : ISODate("2019-12-24T01:03:37.287Z"),
"appliedOpTime" : {
"ts" : Timestamp(1577149417, 1),
"t" : NumberLong(1)
},
"durableOpTime" : {
"ts" : Timestamp(1577149417, 1),
"t" : NumberLong(1)
},
"lastAppliedWallTime" : ISODate("2019-12-24T01:03:37.287Z"),
"lastDurableWallTime" : ISODate("2019-12-24T01:03:37.287Z")
},
"lastStableRecoveryTimestamp" : Timestamp(1577149367, 1),
"lastStableCheckpointTimestamp" : Timestamp(1577149367, 1),
"electionCandidateMetrics" : {
"lastElectionReason" : "electionTimeout",
"lastElectionDate" : ISODate("2019-12-23T11:47:24.679Z"),
"termAtElection" : NumberLong(1),
"lastCommittedOpTimeAtElection" : {
"ts" : Timestamp(0, 0),
"t" : NumberLong(-1)
},
"lastSeenOpTimeAtElection" : {
"ts" : Timestamp(1577101634, 1),
"t" : NumberLong(-1)
},
"numVotesNeeded" : 2,
"priorityAtElection" : 1,
"electionTimeoutMillis" : NumberLong(10000),
"numCatchUpOps" : NumberLong(57017),
"newTermStartDate" : ISODate("2019-12-23T11:47:25.493Z"),
"wMajorityWriteAvailabilityDate" : ISODate("2019-12-23T11:47:26.057Z")
},
"members" : [
{
"_id" : 0,
"name" : "10.100.1.13:37017",
"ip" : "10.100.1.13",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 47854,
"optime" : {
"ts" : Timestamp(1577149417, 1),
"t" : NumberLong(1)
},
"optimeDate" : ISODate("2019-12-24T01:03:37Z"),
"syncingTo" : "",
"syncSourceHost" : "",
"syncSourceId" : -1,
"infoMessage" : "",
"electionTime" : Timestamp(1577101644, 1),
"electionDate" : ISODate("2019-12-23T11:47:24Z"),
"configVersion" : 1,
"self" : true,
"lastHeartbeatMessage" : ""
},
{
"_id" : 1,
"name" : "10.100.1.13:47017",
"ip" : "10.100.1.13",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 47792,
"optime" : {
"ts" : Timestamp(1577149417, 1),
"t" : NumberLong(1)
},
"optimeDurable" : {
"ts" : Timestamp(1577149417, 1),
"t" : NumberLong(1)
},
"optimeDate" : ISODate("2019-12-24T01:03:37Z"),
"optimeDurableDate" : ISODate("2019-12-24T01:03:37Z"),
"lastHeartbeat" : ISODate("2019-12-24T01:03:45.864Z"),
"lastHeartbeatRecv" : ISODate("2019-12-24T01:03:45.865Z"),
"pingMs" : NumberLong(0),
"lastHeartbeatMessage" : "",
"syncingTo" : "10.100.1.13:37017",
"syncSourceHost" : "10.100.1.13:37017",
"syncSourceId" : 0,
"infoMessage" : "",
"configVersion" : 1
},
{
"_id" : 2,
"name" : "10.100.1.13:57017",
"ip" : "10.100.1.13",
"health" : 1,
"state" : 7,
"stateStr" : "ARBITER",
"uptime" : 47792,
"lastHeartbeat" : ISODate("2019-12-24T01:03:45.863Z"),
"lastHeartbeatRecv" : ISODate("2019-12-24T01:03:45.865Z"),
"pingMs" : NumberLong(0),
"lastHeartbeatMessage" : "",
"syncingTo" : "",
"syncSourceHost" : "",
"syncSourceId" : -1,
"infoMessage" : "",
"configVersion" : 1
}
],
"ok" : 1,
"$clusterTime" : {
"clusterTime" : Timestamp(1577149417, 1),
"signature" : {
"hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
"keyId" : NumberLong(0)
}
},
"operationTime" : Timestamp(1577149417, 1)
}
从上面可以看到:
PRIMARY主节点:10.100.1.13:37017
SECONDARY从节点:10.100.1.13:47017
ARBITER监控节点:10.100.1.13:57017
查看是否是主节点
rs.isMaster()
进入主节点管理控制台,在cbb这个数据库创建用户
rs:PRIMARY> use cbb
switched to db cbb
rs:PRIMARY> db.createUser({ user: "root", pwd: "xxxxxx", roles: [{ role: "dbOwner", db: "cbb" }] })
副本集搭建完毕
验证数据库cbb
账户/密码 root/xxxxxx