递归process.nextTick警告

Question

作为我的应用程序的一部分,我有以下几行代码:

process.nextTick(function() {
  // pre-populate cache with all users
  console.log('scanning users table in order to pre-populate cache');
  tables.users.scan(function(err, users) {
    if (err) {
      console.error('unable to scan users database in order to pre-populate cache');
      return;
    }

    console.log('found %d users in database', users.length);
  });
});

在ubuntu中运行应用程序给了我

(node) warning: Recursive process.nextTick detected. This will break in the next version of node. Please use setImmediate for recursive deferral.

RangeError: Maximum call stack size exceeded

在OSX上运行工作正常,没有任何警告.

两者都运行相同的节点版本v0.10.24.

删除此代码块可解决此问题.我想知道这里发生了什么.

试图用--trace-deprecation旗帜显示运行节点

Trace: (node) warning: Recursive process.nextTick detected. This will break in the next version of node. Please use setImmediate for recursive deferral.
    at maxTickWarn (node.js:377:17)
    at process.nextTick (node.js:480:9)
    at onwrite (_stream_writable.js:260:15)
    at WritableState.onwrite (_stream_writable.js:97:5)
    at WriteStream.Socket._write (net.js:651:5)
    at doWrite (_stream_writable.js:221:10)
    at writeOrBuffer (_stream_writable.js:211:5)
    at WriteStream.Writable.write (_stream_writable.js:180:11)
    at WriteStream.Socket.write (net.js:613:40)
    at Console.warn (console.js:61:16)
    at Console.trace (console.js:95:8)
    at maxTickWarn (node.js:377:17)

与运行--throw-deprecation提供了

Error: (node) warning: Recursive process.nextTick detected. This will break in the next version of node. Please use setImmediate for recursive deferral.
    at maxTickWarn (node.js:375:15)
    at process.nextTick (node.js:480:9)
    at Cursor.each (/var/www/node_modules/mongojs/node_modules/mongodb/lib/mongodb/cursor.js:184:13)
    at /var/www/node_modules/mongojs/node_modules/mongodb/lib/mongodb/cursor.js:191:16
    at Cursor.nextObject (/var/www/node_modules/mongojs/node_modules/mongodb/lib/mongodb/cursor.js:540:5)
    at /var/www/node_modules/mongojs/node_modules/mongodb/lib/mongodb/cursor.js:187:12
    at process._tickCallback (node.js:415:13)

任何帮助非常感谢.

10倍

Answer 1

事实证明，问题出在我的应用程序中使用的模块之一 - mongojs。该问题在模块的更高版本中得到了解决，我只需要更新我的package.json.

Jamis Charles 关于使用node --throw-deprecation app.js(或--trace-deprecation) 运行我的应用程序的评论向我展示了导致我找到罪魁祸首模块的错误的堆栈跟踪。

我仍然不确定为什么问题出现在 Ubuntu 上而不是我的 MBA 上......