[SOLVED] Mongodb version - Error nodejs error ReplicaSetNoPrimary

perumalkuk · July 19, 2023, 2:11pm

I am using meteor version 2.12 with mongodb 6.0.5 …one one server. Now I want to separate DB and I installed mongodb 6.0.8, but for some reason meteor is refusing connection. Does meteor driver not support this version of mongodb?

minhna · July 19, 2023, 4:09pm

I’m using Meteor 2.12 with separate Mongodb database (localhost) 6.0.8 without any problem. What is your MONGO_URL? Can you connect to your database using other program likes Mongodb Compass?

perumalkuk · July 19, 2023, 4:14pm

Thanks @minhna for confirming.

I can connect using mongosh (the same string I pass to MONGO_URL)…but not via meteor it refuses to connect. Now since mongodb version is not an issue. I will check if some setting I am missing.

I use pm2 to bringup meteor.

perumalkuk · July 29, 2023, 12:57am

I wanted to update this so that it can help somebody when connecting to own remote mongodb server

reference to this at

github.com/meteor/meteor

Failed connection to local MongoDB when MONGO_URL is set to external database

opened 09:42PM - 04 Oct 22 UTC

closed 05:12PM - 05 Oct 22 UTC

ni-vo

Meteor version: 2.7.1 OS: OSx Montery and Ubuntu (same result) MongoDB version: 4.0.3 Expected behavior: Meteor should not try to establish a connection to the local database if the MongoDB environment variables are set. Actual behavior: Meteor fails to start, because despite the MONGO_URL and MONGO_OPLOG_URL environment variables being set, meteor tries to establish a connection to 127.0.0.1:27017. This connection fails because the local database is not running, because the environment variables were passed. An additional observation, the connection to the remote server is in fact established, as per MongoDB logs on the server: ``` 2022-10-04T21:34:01.532+0000 I NETWORK [listener] connection accepted from xxx4:55118 #363 (2 connections now open) 2022-10-04T21:34:01.610+0000 I NETWORK [conn363] received client metadata from xxx:55118 conn363: { driver: { name: "nodejs", version: "4.3.1" }, os: { type: "Darwin", name: "darwin", architecture: "x64", version: "21.4.0" }, platform: "Node.js v14.19.1, LE (unified)|Node.js v14.19.1, LE (unified)" } 2022-10-04T21:34:01.672+0000 I NETWORK [conn363] end connection xxx:55118 (1 connection now open) ``` Meteor logs: ``` W20221004-17:34:31.359(-4)? (STDERR) /Users/xxx/.meteor/packages/meteor-tool/.2.7.1.1ebzwnf.mdfl++os.osx.x86_64+web.browser+web.browser.legacy+web.cordova/mt-os.osx.x86_64/dev_bundle/server-lib/node_modules/fibers/future.js:313 W20221004-17:34:31.406(-4)? (STDERR) throw(ex); W20221004-17:34:31.406(-4)? (STDERR) ^ W20221004-17:34:31.406(-4)? (STDERR) W20221004-17:34:31.407(-4)? (STDERR) MongoServerSelectionError: connect ECONNREFUSED 127.0.0.1:27017 W20221004-17:34:31.407(-4)? (STDERR) at Timeout._onTimeout (/Users/xxx/.meteor/packages/npm-mongo/.4.3.1.udxozx.x3fz++os+web.browser+web.browser.legacy+web.cordova/npm/node_modules/mongodb/lib/sdam/topology.js:312:38) W20221004-17:34:31.407(-4)? (STDERR) at listOnTimeout (internal/timers.js:557:17) W20221004-17:34:31.407(-4)? (STDERR) at processTimers (internal/timers.js:500:7) { W20221004-17:34:31.407(-4)? (STDERR) reason: TopologyDescription { W20221004-17:34:31.407(-4)? (STDERR) type: 'ReplicaSetNoPrimary', W20221004-17:34:31.409(-4)? (STDERR) servers: Map(1) { W20221004-17:34:31.409(-4)? (STDERR) '127.0.0.1:27017' => ServerDescription { W20221004-17:34:31.409(-4)? (STDERR) _hostAddress: HostAddress { isIPv6: false, host: '127.0.0.1', port: 27017 }, W20221004-17:34:31.409(-4)? (STDERR) address: '127.0.0.1:27017', W20221004-17:34:31.409(-4)? (STDERR) type: 'Unknown', W20221004-17:34:31.410(-4)? (STDERR) hosts: [], W20221004-17:34:31.410(-4)? (STDERR) passives: [], W20221004-17:34:31.410(-4)? (STDERR) arbiters: [], W20221004-17:34:31.410(-4)? (STDERR) tags: {}, W20221004-17:34:31.410(-4)? (STDERR) minWireVersion: 0, W20221004-17:34:31.410(-4)? (STDERR) maxWireVersion: 0, W20221004-17:34:31.410(-4)? (STDERR) roundTripTime: -1, W20221004-17:34:31.411(-4)? (STDERR) lastUpdateTime: 1920971665, W20221004-17:34:31.411(-4)? (STDERR) lastWriteDate: 0, W20221004-17:34:31.411(-4)? (STDERR) error: MongoNetworkError: connect ECONNREFUSED 127.0.0.1:27017 W20221004-17:34:31.411(-4)? (STDERR) at connectionFailureError (/Users/xxx/.meteor/packages/npm-mongo/.4.3.1.udxozx.x3fz++os+web.browser+web.browser.legacy+web.cordova/npm/node_modules/mongodb/lib/cmap/connect.js:381:20) W20221004-17:34:31.411(-4)? (STDERR) at TLSSocket.<anonymous> (/Users/xxx/.meteor/packages/npm-mongo/.4.3.1.udxozx.x3fz++os+web.browser+web.browser.legacy+web.cordova/npm/node_modules/mongodb/lib/cmap/connect.js:301:22) W20221004-17:34:31.411(-4)? (STDERR) at Object.onceWrapper (events.js:520:26) W20221004-17:34:31.411(-4)? (STDERR) at TLSSocket.emit (events.js:400:28) W20221004-17:34:31.411(-4)? (STDERR) at TLSSocket.emit (domain.js:475:12) W20221004-17:34:31.411(-4)? (STDERR) at emitErrorNT (internal/streams/destroy.js:106:8) W20221004-17:34:31.412(-4)? (STDERR) at emitErrorCloseNT (internal/streams/destroy.js:74:3) W20221004-17:34:31.412(-4)? (STDERR) at processTicksAndRejections (internal/process/task_queues.js:82:21) W20221004-17:34:31.412(-4)? (STDERR) } W20221004-17:34:31.412(-4)? (STDERR) }, W20221004-17:34:31.412(-4)? (STDERR) stale: false, W20221004-17:34:31.412(-4)? (STDERR) compatible: true, W20221004-17:34:31.412(-4)? (STDERR) heartbeatFrequencyMS: 10000, W20221004-17:34:31.412(-4)? (STDERR) localThresholdMS: 15, W20221004-17:34:31.413(-4)? (STDERR) setName: 'rs0', W20221004-17:34:31.413(-4)? (STDERR) maxSetVersion: 1, W20221004-17:34:31.413(-4)? (STDERR) maxElectionId: ObjectId { W20221004-17:34:31.413(-4)? (STDERR) [Symbol(id)]: Buffer(12) [Uint8Array] [ W20221004-17:34:31.413(-4)? (STDERR) 127, 255, 255, 255, 0, W20221004-17:34:31.413(-4)? (STDERR) 0, 0, 0, 0, 0, W20221004-17:34:31.413(-4)? (STDERR) 0, 2 W20221004-17:34:31.413(-4)? (STDERR) ] W20221004-17:34:31.413(-4)? (STDERR) }, W20221004-17:34:31.413(-4)? (STDERR) commonWireVersion: 7, W20221004-17:34:31.414(-4)? (STDERR) logicalSessionTimeoutMinutes: undefined W20221004-17:34:31.414(-4)? (STDERR) } W20221004-17:34:31.414(-4)? (STDERR) } ``` Steps to reproduce: settings.json: ``` { "packages": { "mongo": { "options": { "tls": true, "tlsCAFile": "ca.crt", "tlsCertificateKeyFile": "cert.pem" } } } } ``` Start meteor: ``` export MONGO_URL='mongodb://xxx:xxx@xxx:27017/xxx?tls=true&tlsAllowInvalidHostnames=true' export MONGO_OPLOG_URL='mongodb://xxx:xxx@xxx:27017/local?authSource=admin&replicaSet=rs0&tls=true&tlsAllowInvalidHostnames=true' meteor run --settings ./settings.json ``` Am I missing something simple here? Very confused as to why it's still trying to connect to localhost. The database can be connected to without issue from a GUI client and command line. This issue happens on my local machine and when I try to deploy using meteor up.

generally while setting up mongodb we setup the replica set for oplog. This by default takes the local address, while on the connection string in meteor we specify the ip of the mongodb server. This mismatch leads to connection being denied

the way to set it correctly is in the mongodb link which I have pasted below

in the mongo shell

cfg = rs.conf()
cfg.members[0].host = "mongodb0.example.net:27017"
rs.reconfig(cfg)

where you replace mongodb0.example.net with your mongodb server ip