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Yarn on macOS: MaxListenersExceededWarning #7819

@tiloio

Description

@tiloio

Issue

Can't run PouchDB node.js with yarn on macOS.
It is working on Windows 10.

Info

  • Environment: Node.js v11.9.0
  • Platform: macOS Mojave Version 10.14.3 (18D109)
  • Server: PouchDB Version 7.1.1

Reproduce

See repository to reproduce: https://github.com/tiloio/yarn-macos-pouchdb-error

Short reproduce.
Content of index.js file:

var PouchDB = require('pouchdb');
var db = new PouchDB('dbname');

db.put({
  _id: '[email protected]',
  name: 'David',
  age: 69
});

db.changes().on('change', function() {
  console.log('Ch-Ch-Changes');
});

Run yarn add pouchdb && node index.js on MacOS and get following error:

$ node index.js
(node:56044) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 destroyed listeners added. Use emitter.setMaxListeners() to increase limit
(node:56044) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 closed listeners added. Use emitter.setMaxListeners() to increase limit
Ch-Ch-Changes
Ch-Ch-Changes
Ch-Ch-Changes
/Users/Tilo/Documents/workspace/test/node_modules/readable-stream/lib/_stream_transform.js:82
    return this.emit('error', new ERR_MULTIPLE_CALLBACK());
                              ^

Error: Callback called multiple times
    at DestroyableTransform.afterTransform (/Users/Tilo/Documents/workspace/test/node_modules/readable-stream/lib/_stream_transform.js:82:31)
    at onGetWinningDoc (/Users/Tilo/Documents/workspace/test/node_modules/pouchdb/lib/index.js:5829:11)
    at onGetMetadata (/Users/Tilo/Documents/workspace/test/node_modules/pouchdb/lib/index.js:5840:18)
    at /Users/Tilo/Documents/workspace/test/node_modules/pouchdb/lib/index.js:5864:9
    at /Users/Tilo/Documents/workspace/test/node_modules/pouchdb/lib/index.js:4142:9
    at /Users/Tilo/Documents/workspace/test/node_modules/pouchdb/lib/index.js:3973:13
Emitted 'error' event at:
    at DestroyableTransform.onerror (/Users/Tilo/Documents/workspace/test/node_modules/pouchdb/node_modules/readable-stream/lib/_stream_readable.js:558:12)
    at DestroyableTransform.emit (events.js:197:13)
    at DestroyableTransform.afterTransform (/Users/Tilo/Documents/workspace/test/node_modules/readable-stream/lib/_stream_transform.js:82:17)
    at onGetWinningDoc (/Users/Tilo/Documents/workspace/test/node_modules/pouchdb/lib/index.js:5829:11)
    [... lines matching original stack trace ...]
    at /Users/Tilo/Documents/workspace/test/node_modules/pouchdb/lib/index.js:3973:13

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