MongoDB Server Error

Ops and Admin Sharding
,
1 
C:\Users\TUNA>mongosh --port 37017
Current Mongosh Log ID: 665c972d28bed6034ecdcdf5
Connecting to:          mongodb://127.0.0.1:37017/?directConnection=true&serverSelectionTimeoutMS=2000&appName=mongosh+2.2.6
Using MongoDB:          8.0.0-rc6
Using Mongosh:          2.2.6

For mongosh info see: https://docs.mongodb.com/mongodb-shell/

Enterprise shard0 [direct: secondary] test> rs.status()
{
  set: 'shard0',
  date: ISODate('2024-06-02T16:00:47.637Z'),
  myState: 2,
  term: Long('17'),
  syncSourceHost: '127.0.0.1:37019',
  syncSourceId: 2,
  heartbeatIntervalMillis: Long('2000'),
  majorityVoteCount: 2,
  writeMajorityCount: 2,
  votingMembersCount: 3,
  writableVotingMembersCount: 3,
  optimes: {
    lastCommittedOpTime: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
    lastCommittedWallTime: ISODate('2024-06-02T16:00:44.211Z'),
    readConcernMajorityOpTime: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
    appliedOpTime: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
    durableOpTime: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
    writtenOpTime: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
    lastAppliedWallTime: ISODate('2024-06-02T16:00:44.211Z'),
    lastDurableWallTime: ISODate('2024-06-02T16:00:44.211Z'),
    lastWrittenWallTime: ISODate('2024-06-02T16:00:44.211Z')
  },
  lastStableRecoveryTimestamp: Timestamp({ t: 1717344024, i: 1 }),
  electionParticipantMetrics: {
    votedForCandidate: true,
    electionTerm: Long('17'),
    lastVoteDate: ISODate('2024-06-02T15:57:44.133Z'),
    electionCandidateMemberId: 2,
    voteReason: '',
    lastWrittenOpTimeAtElection: { ts: Timestamp({ t: 1717343684, i: 2 }), t: Long('15') },
    maxWrittenOpTimeInSet: { ts: Timestamp({ t: 1717343684, i: 2 }), t: Long('15') },
    lastAppliedOpTimeAtElection: { ts: Timestamp({ t: 1717343684, i: 2 }), t: Long('15') },
    maxAppliedOpTimeInSet: { ts: Timestamp({ t: 1717343684, i: 2 }), t: Long('15') },
    priorityAtElection: 1,
    newTermStartDate: ISODate('2024-06-02T15:57:44.142Z'),
    newTermAppliedDate: ISODate('2024-06-02T15:57:44.161Z')
  },
  members: [
    {
      _id: 0,
      name: '127.0.0.1:37017',
      health: 1,
      state: 2,
      stateStr: 'SECONDARY',
      uptime: 198,
      optime: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
      optimeDate: ISODate('2024-06-02T16:00:44.000Z'),
      optimeWritten: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
      optimeWrittenDate: ISODate('2024-06-02T16:00:44.000Z'),
      lastAppliedWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      lastDurableWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      lastWrittenWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      syncSourceHost: '127.0.0.1:37019',
      syncSourceId: 2,
      infoMessage: '',
      configVersion: 1,
      configTerm: 17,
      self: true,
      lastHeartbeatMessage: ''
    },
    {
      _id: 1,
      name: '127.0.0.1:37018',
      health: 1,
      state: 2,
      stateStr: 'SECONDARY',
      uptime: 193,
      optime: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
      optimeDurable: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
      optimeWritten: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
      optimeDate: ISODate('2024-06-02T16:00:44.000Z'),
      optimeDurableDate: ISODate('2024-06-02T16:00:44.000Z'),
      optimeWrittenDate: ISODate('2024-06-02T16:00:44.000Z'),
      lastAppliedWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      lastDurableWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      lastWrittenWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      lastHeartbeat: ISODate('2024-06-02T16:00:47.085Z'),
      lastHeartbeatRecv: ISODate('2024-06-02T16:00:47.052Z'),
      pingMs: Long('0'),
      lastHeartbeatMessage: '',
      syncSourceHost: '127.0.0.1:37019',
      syncSourceId: 2,
      infoMessage: '',
      configVersion: 1,
      configTerm: 17
    },
    {
      _id: 2,
      name: '127.0.0.1:37019',
      health: 1,
      state: 1,
      stateStr: 'PRIMARY',
      uptime: 193,
      optime: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
      optimeDurable: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
      optimeWritten: { ts: Timestamp({ t: 1717344044, i: 1 }), t: Long('17') },
      optimeDate: ISODate('2024-06-02T16:00:44.000Z'),
      optimeDurableDate: ISODate('2024-06-02T16:00:44.000Z'),
      optimeWrittenDate: ISODate('2024-06-02T16:00:44.000Z'),
      lastAppliedWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      lastDurableWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      lastWrittenWallTime: ISODate('2024-06-02T16:00:44.211Z'),
      lastHeartbeat: ISODate('2024-06-02T16:00:47.084Z'),
      lastHeartbeatRecv: ISODate('2024-06-02T16:00:46.552Z'),
      pingMs: Long('0'),
      lastHeartbeatMessage: '',
      syncSourceHost: '',
      syncSourceId: -1,
      infoMessage: '',
      electionTime: Timestamp({ t: 1717343864, i: 1 }),
      electionDate: ISODate('2024-06-02T15:57:44.000Z'),
      configVersion: 1,
      configTerm: 17
    }
  ],
  ok: 1,
  '$clusterTime': {
    clusterTime: Timestamp({ t: 1717344044, i: 1 }),
    signature: {
      hash: Binary.createFromBase64('AAAAAAAAAAAAAAAAAAAAAAAAAAA=', 0),
      keyId: Long('0')
    }
  },
  operationTime: Timestamp({ t: 1717344044, i: 1 })
}

and I'm going to write that 

Enterprise shard0 [direct: secondary] test> show dbs
admin        40.00 KiB
config      112.00 KiB
local       460.00 KiB
mydatabase   40.00 KiB
Enterprise shard0 [direct: secondary] test> use mydatabase
switched to db mydatabase
Enterprise shard0 [direct: secondary] mydatabase> sh.enableSharding("mydatabase")
MongoServerError[CommandNotFound]: no such command: 'enableSharding'. Are you connected to mongos?
Enterprise shard0 [direct: secondary] mydatabase>

that always say no such command why that happen?

2

Hi @Developer_Providers and welcome to the community forum.

As the error suggests, you need to be connected to mongos to use the sh.enableSharding() command.
From the above command it seems you are trying to use the command from on the shard.

Also, Starting in MongoDB 6.0, this method is not required to shard a collection.

Let us know if you have any further questions.

Regards
Aasawari