Cultofcoders:redis-oplog TypeError: Cannot read property 'stop' of undefined

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1

“cultofcoders:redis-oplog”

cultofcoders:redis-oplog@2.0.5
METEOR@2.7.3

How to fix error

I20220630-16:20:30.160(7)? Exception in onStop callback: TypeError: Cannot read property 'stop' of undefined
I20220630-16:20:30.160(7)?     at ObserveMultiplexer.onStop [as _onStop] (packages/cultofcoders:redis-oplog/lib/mongo/observeChanges.js:53:35)
I20220630-16:20:30.161(7)?     at ObserveMultiplexer._stop (packages/cultofcoders:redis-oplog/lib/mongo/ObserveMultiplex.js:119:14)
I20220630-16:20:30.161(7)?     at ObserveMultiplexer.removeHandle (packages/cultofcoders:redis-oplog/lib/mongo/ObserveMultiplex.js:105:18)
I20220630-16:20:30.161(7)?     at ObserveHandle.stop (packages/cultofcoders:redis-oplog/lib/mongo/ObserveMultiplex.js:288:23)
I20220630-16:20:30.161(7)?     at Subscription.<anonymous> (packages/mongo/collection.js:434:21)
I20220630-16:20:30.161(7)?     at runWithEnvironment (packages/meteor.js:1320:24)
I20220630-16:20:30.161(7)?     at packages/meteor.js:1333:14
I20220630-16:20:30.161(7)?     at packages/ddp-server/livedata_server.js:1232:7
I20220630-16:20:30.161(7)?     at Array.forEach (<anonymous>)
I20220630-16:20:30.161(7)?     at Function._.each._.forEach (packages/underscore.js:139:11)
I20220630-16:20:30.161(7)?     at Subscription._callStopCallbacks (packages/ddp-server/livedata_server.js:1231:7)
I20220630-16:20:30.161(7)?     at Subscription._deactivate (packages/ddp-server/livedata_server.js:1221:10)
I20220630-16:20:30.161(7)?     at packages/ddp-server/livedata_server.js:953:11
I20220630-16:20:30.161(7)?     at Map.forEach (<anonymous>)
I20220630-16:20:30.161(7)?     at Session._deactivateAllSubscriptions (packages/ddp-server/livedata_server.js:952:21)
I20220630-16:20:30.161(7)?     at packages/ddp-server/livedata_server.js:494:12

Thanks.

2

Hi @bug249286 would you be able to give us more context?

3

@hschmaiske Thank you very much for you attention to this matter.

An error was occurred sometime only but not all the time. Unable to tell the error time exactly.

4

Would you be able to provide a code snippet for me to try to reproduce the issue?

5

By looking at the code, it’d mean that this line got executed before this one. That’d mean, the ObserveMultiplex._stop of this very multiplexer got called right before the first one managed to complete setting up. That’s really weird, as the constructor is already wrapped in Meteor._noYieldsAllowed, and there’s not much in between.

@bug249286 are you able to reproduce it consistently, e.g., by performing some action in the app?

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