MaxListenersExceededWarning when adding loggers dynamically

[andymel123]

Hi,

I append loggers dynamically with the solution posted here.

The problem with that. With each added logger, file.js adds a 'SIGHUP' listener to process.
process.on('SIGHUP', app.sighupHandler);

Is there a way to tell log4js when I am finished with the specific logger? So that it can remove the listener again? The shutdown function on log4js would shutdown all appenders I guess.

My current workaround (typescript) just removes the listener after it's added. But that's just fighting a symptom of a bigger problem.
process.addListener("newListener", (type, listener) => {...removing that listener again...}

log4js version "^4.3.0"

[nomiddlename]

I commented on the other issue #437, but I'll comment here as well in case other people are searching for the same thing. You can use the timeout parameter of the multiFile appender to close the underlying file appenders when they have not been used for a while. That may fix your problem.

The real issue is that each file appender adds its own SIGHUP handler when they could all use the same one. See also #852

[lamweili]

This has been patched and should be closed together with #852 once the PR #1110 is approved.