如何防止流星看文件？ [英] How to prevent Meteor from watching files?

问题描述

我想使用 Dojo Toolkit 与 Meteor 。

1. 我首先在 / public

中复制整个Dojo Toolkit树，然后将其包含在客户端包含：

Then, I include it on the client side with:

<script src="/dojo/dojo.js" data-dojo-config="async: true"></script>`

一切正常，除了Meteor实际上是监视 / public 中的每个文件进行更改，以便它可以重新启动服务器。在 localhost：3000 的第一个请求中，这实际上导致了很长的延迟。

Everything works fine, except Meteor is actually monitoring every single file in /public for changes, so that it can restart the server. This is actually causing a very long delay during the first request on localhost:3000.

有没有办法阻止Meteor从某个目录中查看文件？

Is there a way of preventing Meteor from watching files from a certain directory?

Dojo Toolkit是10k +文件，所以我收到了EMFILE错误 here ，用

Dojo Toolkit is 10k+ files so I get the EMFILE error stated here, corrected with

sudo sh -c 'echo 16384 > /proc/sys/fs/inotify/max_user_watches'

推荐答案

意识到这是重复的：使用Meteor生成和提供静态文件

请参阅： https： //github.com/meteor/meteor/issues/437

这是我的一个主要问题。我必须提供〜12000个静态图像，我最初放入公用文件夹。这导致节点不断使用一个CPU内核的近100％。使用有限的内存，应用程序崩溃。

This was a major problem for me. I have to serve ~12000 static images, which I initially put into the public folder. This caused node to use nearly 100% of one CPU core, constantly. With limited memory the app crashes.

目前使用的解决方法

• 创建文件夹 public /.# static / 并将所有静态资源移动到其中。这个文件夹没有被流星


• 前缀url与静态（ /img/cat.png - > /static/img/cat.png）



• 安装mime npm包

• create the folder public/.#static/ and move all static assets into it. This folder isn't watched by meteor
• prefix urls with static (/img/cat.png -> /static/img/cat.png)

• install the mime npm package

cd ~/.meteor/tools/latest/lib/node_modules/
npm install mime

创建一个rawConnectionHandler来为资产提供服务（信用： https://stackoverflow.com/a/20358612 ）
服务器/ static_files_handler.coffee

create a rawConnectionHandler to serve the assets (credits to: https://stackoverflow.com/a/20358612) server/static_files_handler.coffee

fs = Npm.require('fs')
mime = Npm.require('mime')
WebApp.rawConnectHandlers.use (req, res, next) ->
  re = /^\/static\/(.*)$/.exec(req.url)
  if re isnt null # Only handle URLs that start with /static/*
    filePath = process.env.PWD + "/public/.#static/" + re[1]
    type = mime.lookup(filePath)
    data = fs.readFileSync(filePath, data)
    res.writeHead 200,
      "Content-Type": type

    res.write data
    res.end()
  else # Other urls will have default behaviors
    next()
  return

此方法的限制：

• 不适合使用查询参数提供资产。正则表达式还将匹配/static/html/image.html?src=/static/img/cat.png尝试提供包含参数的文件名的文件。这很容易改变。


• Meteor完全不知道这些文件，因此它们不会被包含在Appcache清单中。如果您想使其脱机使用，请查看我添加到 https://github.com的addPaths选项/ buildhybrid / appcache-extra

• not suitable to serve assets with query parameters. The regex would also match /static/html/image.html?src=/static/img/cat.png trying to serve a file with the filename including the parameters. This is easy to change.
• Meteor is completely unaware of the files, they therefore don't get included into the appcache manifest. If you want to make them available offline, check out the addPaths option I added to https://github.com/buildhybrid/appcache-extra

如果您不想解决问题，请考虑为外部服务（例如AWS S3）。

If you don't want to work around the problems, consider serving the assets from an external service (ex. AWS S3).

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