Rocket.chat: cronProcessDownloads: Cannot read property 'filter' of undefined

[JoshMcCullough]

Description:

Seeing the log message below repeatedly.

Steps to reproduce:

No steps, noticed this while viewing the log.

Expected behavior:

Actual behavior:

Server Setup Information:

• Version of Rocket.Chat Server: 3.1.1
• Operating System: RHEL 7
• Deployment Method: Docker
• Number of Running Instances: 1
• DB Replicaset Oplog: enabled
• NodeJS Version: 12.16.1
• MongoDB Version: 4.0.9

Relevant logs:

=== UnHandledPromiseRejection ===
TypeError: Cannot read property 'filter' of undefined
at app/user-data-download/server/cronProcessDownloads.js:50:57
at SynchronousCursor.forEach (packages/mongo/mongo_driver.js:1102:16)
at Cursor. [as forEach] (packages/mongo/mongo_driver.js:882:44)
at loadUserSubscriptions (app/user-data-download/server/cronProcessDownloads.js:46:9)
at app/user-data-download/server/cronProcessDownloads.js:498:3
at /app/bundle/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40
=> awaited here:
at Function.Promise.await (/app/bundle/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/promise_server.js:56:12)
at app/user-data-download/server/cronProcessDownloads.js:567:2
at /app/bundle/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40

[JoshMcCullough]

Also what is this CRON job even for?

[sampaiodiego]

this cron job is in charge of processing users' "download my data" requests..

[pierre-lehnen-rc]

Fixed by #17577

[maiconbaumx]

I'm facing a similar issue after upgrading to 3.5.0.

 === UnHandledPromiseRejection ===
 TypeError: Cannot read property 'filter' of undefined
 at app/user-data-download/server/cronProcessDownloads.js:51:59
 at SynchronousCursor.forEach (packages/mongo/mongo_driver.js:1138:16)
 at Cursor.<computed> [as forEach] (packages/mongo/mongo_driver.js:918:44)
 at loadUserSubscriptions (app/user-data-download/server/cronProcessDownloads.js:47:9)
 at app/user-data-download/server/cronProcessDownloads.js:499:3
 at /opt/Rocket.Chat/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40
 => awaited here:
 at Function.Promise.await (/opt/Rocket.Chat/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/promise_server.js:56:12)
 at app/user-data-download/server/cronProcessDownloads.js:577:2
 at /opt/Rocket.Chat/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40
 ---------------------------------
 Errors like this can cause oplog processing errors.
 Setting EXIT_UNHANDLEDPROMISEREJECTION will cause the process to exit allowing your service to automatically restart the process
 Future node.js versions will automatically exit the process
 =================================

[sampaiodiego]

@maiconbaumx what version were you using before upgrading? the uids field was created by https://github.com/RocketChat/Rocket.Chat/pull/16761/ released on version 3.1.0 .. I wonder if you missed a migration 🤔