nodejs: MaxListenerExceededWarning

[lynxis]

I've found the following warning in the log

Sep 06 00:57:49 door nodejs[576]: (node:576) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 connect listeners added. Use emitter.setMaxListeners() to increase limit
Sep 06 00:57:49 door nodejs[576]: (node:576) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 disconnect listeners added. Use emitter.setMaxListeners() to increase limit
Sep 06 00:57:49 door nodejs[576]: (node:576) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 rssiUpdate listeners added. Use emitter.setMaxListeners() to increase limit
Sep 06 00:57:49 door nodejs[576]: (node:576) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 connect listeners added. Use emitter.setMaxListeners() to increase limit
Sep 06 00:57:49 door nodejs[576]: (node:576) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 disconnect listeners added. Use emitter.setMaxListeners() to increase limit
Sep 06 00:57:49 door nodejs[576]: (node:576) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 rssiUpdate listeners added. Use emitter.setMaxListeners() to increase limit

[binaryDiv]

Der obige Fehler (MaxListenersExceededWarning) trat eben wieder auf, einen Moment später fand ich einen Stacktrace im Log. Glaub das ist neu.

Sep 08 21:38:32 door nodejs[22008]: (node:22008) UnhandledPromiseRejectionWarning: Error: Peripheral already connected
Sep 08 21:38:32 door nodejs[22008]:     at Peripheral.connect (/opt/afra_door/node_modules/keyble/node_modules/simble/node_modules/noble/lib/peripheral.js:43:26)
Sep 08 21:38:32 door nodejs[22008]:     at Promise (/opt/afra_door/node_modules/keyble/node_modules/simble/simble.js:550:33)
Sep 08 21:38:32 door nodejs[22008]:     at new Promise (<anonymous>)
Sep 08 21:38:32 door nodejs[22008]:     at _Class.ensure_connected (/opt/afra_door/node_modules/keyble/node_modules/simble/simble.js:545:14)
Sep 08 21:38:32 door nodejs[22008]:     at _Class.ensure_discovered (/opt/afra_door/node_modules/keyble/node_modules/simble/simble.js:569:19)
Sep 08 21:38:32 door nodejs[22008]:     at simble.scan_for_peripheral.then (/opt/afra_door/node_modules/keyble/keyble.js:864:25)
Sep 08 21:38:32 door nodejs[22008]:     at <anonymous>
Sep 08 21:38:32 door nodejs[22008]:     at process._tickCallback (internal/process/next_tick.js:188:7)
Sep 08 21:38:32 door nodejs[22008]: (node:22008) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 3)
Sep 08 21:38:32 door nodejs[22008]: (node:22008) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

[binaryDiv]

Hab mal die defaultMaxListeners von 10 (default) auf 30 gesetzt. Ist keine Lösung fürs eigentliche Problem, macht aber den Server eventuell etwas stabiler...