1인 MongodB University 12/21 - 복제품 세트 디자인

이 기록은 달력 형식의 몬godb University 학습 과정을 부가한 기록입니다. 21일째!
현재 진행 중인 노선: M103[1].하루에 3개 정도 챕터2를 진행하고 싶어요.
목표는 25일까지 15 step.

추가 달력 / 1인 MongodB University 준비

Chapter 2: Lab: Deploya Replica Set(연습 문제)

Problem
Launch a replica set with three members:
세 개의 던전집을 시작합시다!

There are three configuration files in your IDE workspace, but they are incomplete.

Update these configuration files so that all three mongod processes:
authenticate internally using the keyfile/var/mongodb/pki/m103-keyfile
belong to the replica set m103-repl
참조 정보를 설정하려면 다음과 같이 하십시오.

Deploy a Replica Se

https://docs.mongodb.com/manual/tutorial/deploy-replica-set/

Deploy Replica Set With Keyfile Authentication

https://docs.mongodb.com/manual/tutorial/deploy-replica-set-with-keyfile-access-control/#deploy-repl-set-with-auth

Once your configuration files are complete, start a mongod process using one of them.

하나만 시작

When this node is running, use the mongo shell to connect and initiate your replica set with rs.initiate(). The shell prompt will read PRIMARY when the election is complete.

포트 27001을 통해 연결!

rs.initiate()는 무엇입니까?

https://docs.mongodb.com/manual/reference/method/rs.initiate/

Initiates a replica set. 복제본 세트를 초기화합니다.

Optionally, the method can take an argument in the form of a document that holds the configuration of a replica set.
- 매개변수를 사용하여 복사본 세트 조정 가능

# 接続してみる！
bash-4.4# mongo --port 27001
MongoDB shell version v4.0.5
connecting to: mongodb://127.0.0.1:27001/?gssapiServiceName=mongodb
Implicit session: session { "id" : UUID("5930a10f-7f68-4282-869e-dd14001f66da") }
MongoDB server version: 4.0.5
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
>

던전집의 초기화.

> rs.initiate()
{
        "info2" : "no configuration specified. Using a default configuration for the set",
        "me" : "localhost:27001",
        "ok" : 1
}

잡아라.프롬프트에 "PRIMARY"가 표시됩니다!

Because the replica set uses a keyfile for internal authentication, clients must authenticate before performing any actions.

db.createUser({
  user: "m103-admin",
  pwd: "m103-pass",
  roles: [
    {role: "root", db: "admin"}
  ]
})

실제 처리.

# mongo shellのプロンプトが変わりました！
m103-repl:OTHER>


# まずはユーザ作成　（さらにmongo shellのプロンプトが変わりました！）
m103-repl:PRIMARY> use admin
switched to db admin
m103-repl:PRIMARY> db.createUser({
   user: "m103-admin",
   pwd: "m103-pass",
   roles: [
     {role: "root", db: "admin"}
   ]
 })
Successfully added user: {
        "user" : "m103-admin",
        "roles" : [
                {
                        "role" : "root",
                        "db" : "admin"
                }
        ]
}

Once m103-admin is created, exit the mongo shell and start the other two mongod processes with their respective configuration files.

# 残り2つ起動
bash-4.4# mongod -f mongod_2.conf
bash-4.4# mongod -f mongod_3.conf

bash-4.4# netstat -a
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State
tcp        0      0 localhost:27001         0.0.0.0:*               LISTEN
tcp        0      0 localhost:27002         0.0.0.0:*               LISTEN
tcp        0      0 localhost:27003         0.0.0.0:*               LISTEN
tcp        0      0 localhost:53672         localhost:27001         TIME_WAIT
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags       Type       State         I-Node Path
unix  3      [ ]         DGRAM                    1150502782 /dev/log
unix  2      [ ACC ]     STREAM     LISTENING     1150659984 /tmp/mongodb-27002.sock
unix  2      [ ACC ]     STREAM     LISTENING     1150573201 /tmp/mongodb-27001.sock
unix  2      [ ACC ]     STREAM     LISTENING     1150658340 /tmp/mongodb-27003.sock
unix  2      [ ]         DGRAM                    1150502814
bash-4.4#

Reconnect to your primary node as m103-admin and add the other two nodes to your replica set using rs.add().

마스터 노드에 재접속하고 복제본 세트에 추가

rs.add()

Ref. https://docs.mongodb.com/manual/reference/method/rs.add/index.html

Adds a member to a replica set. To run the method, you must connect to the primary of the replica set.

던전집을 추가한 구성원

복제본 세트의 주요 섹션에 연결해야 함

rs.add(host, arbiterOnly)

bash-4.4# mongo --port 27001 -u m103-admin -p m103-pass

---

# primaryに接続
m103-repl:PRIMARY>
m103-repl:PRIMARY> rs.add( { host: "localhost:27002" } )
{
        "ok" : 1,
        "operationTime" : Timestamp(1608562007, 1),
        "$clusterTime" : {
                "clusterTime" : Timestamp(1608562007, 1),
                "signature" : {
                        "hash" : BinData(0,"CjAYCI3CxKlruG818lnvta3FkdU="),
                        "keyId" : NumberLong("6908718490643857410")
                }
        }
}

m103-repl:PRIMARY>
m103-repl:PRIMARY> rs.add( { host: "localhost:27003" } )
{
        "ok" : 1,
        "operationTime" : Timestamp(1608562027, 1),
        "$clusterTime" : {
                "clusterTime" : Timestamp(1608562027, 1),
                "signature" : {
                        "hash" : BinData(0,"ih1GVxuhUrGc4nL6Zz0K5uCtGs8="),
                        "keyId" : NumberLong("6908718490643857410")
                }
        }
}

포획은 이런 느낌이에요.

Once your other two members have been successfully added, run rs.status() to check that the members array has three nodes - one labeled PRIMARY and two labeled SECONDARY.

주요 연결 상태에서 결과 확인!
"stateStar"확인: "SECONDARY"2개 "stateStar": "PRIMARY"1개!

m103-repl:PRIMARY> rs.status()
{
        "set" : "m103-repl",
        "date" : ISODate("2020-12-21T14:48:05.453Z"),
        "myState" : 1,
        "term" : NumberLong(1),
        "syncingTo" : "",
        "syncSourceHost" : "",
        "syncSourceId" : -1,
        "heartbeatIntervalMillis" : NumberLong(2000),
        "optimes" : {
                "lastCommittedOpTime" : {
                        "ts" : Timestamp(1608562083, 1),
                        "t" : NumberLong(1)
                },
                "readConcernMajorityOpTime" : {
                        "ts" : Timestamp(1608562083, 1),
                        "t" : NumberLong(1)
                },
                "appliedOpTime" : {
                        "ts" : Timestamp(1608562083, 1),
                        "t" : NumberLong(1)
                },
                "durableOpTime" : {
                        "ts" : Timestamp(1608562083, 1),
                        "t" : NumberLong(1)
                }
        },
        "lastStableCheckpointTimestamp" : Timestamp(1608562027, 1),
        "members" : [
                {
                        "_id" : 0,
                        "name" : "localhost:27001",
                        "health" : 1,
                        "state" : 1,
                        "stateStr" : "PRIMARY",
                        "uptime" : 986,
                        "optime" : {
                                "ts" : Timestamp(1608562083, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2020-12-21T14:48:03Z"),
                        "syncingTo" : "",
                        "syncSourceHost" : "",
                        "syncSourceId" : -1,
                        "infoMessage" : "",
                        "electionTime" : Timestamp(1608561372, 2),
                        "electionDate" : ISODate("2020-12-21T14:36:12Z"),
                        "configVersion" : 3,
                        "self" : true,
                        "lastHeartbeatMessage" : ""
                },
                {
                        "_id" : 1,
                        "name" : "localhost:27002",
                        "health" : 1,
                        "state" : 2,
                        "stateStr" : "SECONDARY",
                        "uptime" : 77,
                        "optime" : {
                                "ts" : Timestamp(1608562083, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDurable" : {
                                "ts" : Timestamp(1608562083, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2020-12-21T14:48:03Z"),
                        "optimeDurableDate" : ISODate("2020-12-21T14:48:03Z"),
                        "lastHeartbeat" : ISODate("2020-12-21T14:48:05.065Z"),
                        "lastHeartbeatRecv" : ISODate("2020-12-21T14:48:04.089Z"),
                        "pingMs" : NumberLong(0),
                        "lastHeartbeatMessage" : "",
                        "syncingTo" : "localhost:27001",
                        "syncSourceHost" : "localhost:27001",
                        "syncSourceId" : 0,
                        "infoMessage" : "",
                        "configVersion" : 3
                },
                {
                        "_id" : 2,
                        "name" : "localhost:27003",
                        "health" : 1,
                        "state" : 2,
                        "stateStr" : "SECONDARY",
                        "uptime" : 58,
                        "optime" : {
                                "ts" : Timestamp(1608562083, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDurable" : {
                                "ts" : Timestamp(1608562083, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2020-12-21T14:48:03Z"),
                        "optimeDurableDate" : ISODate("2020-12-21T14:48:03Z"),
                        "lastHeartbeat" : ISODate("2020-12-21T14:48:05.066Z"),
                        "lastHeartbeatRecv" : ISODate("2020-12-21T14:48:04.338Z"),
                        "pingMs" : NumberLong(0),
                        "lastHeartbeatMessage" : "",
                        "syncingTo" : "localhost:27001",
                        "syncSourceHost" : "localhost:27001",
                        "syncSourceId" : 0,
                        "infoMessage" : "",
                        "configVersion" : 3
                }
        ],
        "ok" : 1,
        "operationTime" : Timestamp(1608562083, 1),
        "$clusterTime" : {
                "clusterTime" : Timestamp(1608562083, 1),
                "signature" : {
                        "hash" : BinData(0,"rXS8Wjw1L/KN/HVCUX4TCVdDm9Y="),
                        "keyId" : NumberLong("6908718490643857410")
                }
        }
}

Click "Run Tests"to run a suite of tests that will check the configuration of your replica set. The results of these tests will let you know which steps you've yet to complete.

테스트 실행.
다행이다!!!!통과했어!!!!!

복습할 필요가 있었지만 드디어 통과했어!

오늘의 진전

단 하나, 훈련 문제 완성.
처음으로 복제품 세트 시작!

오늘의 젠.

계속 같은 방법으로 진행되고 있다.
업데이트된 통지가 왔다.감사합니다!!
각주
M103: Basic Cluster Administration세트.수업을 시작하면 이수까지의 기한은 두 달 이내이다.↩︎