Console.log bug: MaxListenersExceededWarning

[Zoddo]

• Version: v11.14.0
• Platform: Linux zoddo 4.9.0-8-amd64 Update README for help #1 SMP Debian 4.9.144-3.1 (2019-02-19) x86_64 GNU/Linux
• Subsystem:

I got this error:

(node:7834) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 error listeners added. Use emitter.setMaxListeners() to increase limit
    at _addListener (events.js:251:17)
    at WriteStream.addListener (events.js:267:10)
    at WriteStream.Readable.on (_stream_readable.js:838:35)
    at WriteStream.once (events.js:296:8)
    at Console.(anonymous function) (internal/console/constructor.js:240:12)
    at Console.log (internal/console/constructor.js:287:26)
    at Logger.log (/<snip>/src/util/Logger.js:50:13)
    at Shard.onLog (/<snip>/src/Shard.js:51:25)
    at Shard.emit (events.js:193:13)
    at Shard.EventEmitter.emit (domain.js:481:20)

I was not able to produce a simple script that reproduce this error (I don't know exactly which condition trigger this bug), but I'm able to reproduce it anytime in my code.

From what I can see on the stacktrace, the EventEmitter instance which produce this warning is internal to node. The listeners seem to be registered during a console.log() call.

[ollisal]

Ditto, on Node.js v12.0.0.

[Zoddo]

I don't know why this issue was moved there. It's a bug report, not an help request.

[gireeshpunathil]

@Zoddo - can you please share your test case?

[Zoddo]

As said, I'm not able to produce a simple test case (this bug is probably triggered under specific conditions). But the EventEmitter generating this error is internal to node (just take a look at the stack trace).

Maybe @ollisal can have more chances than me, and provide a test case.

[zetos]

Had the same issue when i was using node v12.9.0 it was solved when i upgraded to node v12.10.0.

[gianpaj]

I'm getting this issue on OSX node v13.5.0 when running:

npx npkill

(node:11672) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 data listeners added to [Socket]. Use emitter.setMaxListeners() to increase limitess

[PoojaDurgad]

@Zoddo , is this still an issue?

[gireeshpunathil]

inactive, closing