Reaction: Failed to initialize a MongoDB replica set.

[Eduard-Hasa]

23:56:38.303Z  INFO Reaction: Registered plugin address-validation-test (1.0.1)
23:56:38.304Z  INFO Reaction: Initializing MongoDB replica set...
23:56:38.305Z  INFO Reaction: Connecting to MongoDB...
23:57:08.321Z  WARN Reaction: Failed to initialize a MongoDB replica set. This may result in errors or some things not working. Error: Server selection timed out after 30000 ms
23:57:08.321Z  INFO Reaction: Connecting to MongoDB...
23:57:38.326Z ERROR Reaction: Server selection timed out after 30000 ms
  MongoServerSelectionError: Server selection timed out after 30000 ms
      at Timeout._onTimeout (/usr/local/src/app/node_modules/mongodb/lib/core/sdam/topology.js:438:30)
      at listOnTimeout (internal/timers.js:554:17)
      at processTimers (internal/timers.js:497:7)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] start: `node --experimental-modules --experimental-json-modules ./src/index.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/node/.npm/_logs/2020-12-17T23_57_38_346Z-debug.log

Prerequisites

• [ x] Are you running the latest version?
• [x ] Are you able to consistently reproduce the issue?
• [ x] Did you search the issue queue for existing issue? Search issues

Issue Description

Have been trying to setup reaction-development-platform but this error keeps coming up with the latest release v3.11.0. I was able to deploy without any issues by using older version.

Versions

3.11.0

[Eduard-Hasa]

Just verified this is 100% a 3.11.0 issue. Fired up 2 fresh gcp instances with ubuntu and 3.10.0 ran perfectly.

[supermop2525]

Same error, leads to errors in the reaction identity and reaction admin containers as well because they cant find the replica set, leading to problems with sign-in and sign-up.

[Eduard-Hasa]

It was mongodb problem. Try to set MONGO_USE_UNIFIED_TOPOLOGY=false in your .env file.

This solution was recommended by Davian on Gitter.

[Eduard-Hasa]

Reaction Commerce dev addressed and temporarily resolved the issue here:

https://github.com/reactioncommerce/api-core/pull/15#issue-543807479