流星碰撞：MongoError：ns名称太长，最大大小为128

Question

我的Meteor应用程序在localhost上运行良好，但当我将它部署到myapp.Meteor.com时，我得到以下错误。我很难理解这些错误日志。有什么想法吗？

[Thu Jun 25 2015 06:35:23 GMT+0000 (UTC)] 
WARNING /meteor/dev_bundles/0.4.18/lib/node_modules/fibers/future.js:278
throw(ex);
^
[Thu Jun 25 2015 06:35:23 GMT+0000 (UTC)] 
WARNING MongoError: ns name too long, max size is 128
at Object.Future.wait
(/meteor/dev_bundles/0.4.18/lib/node_modules/fibers/future.js:398:15)
at [object Object].MongoConnection._ensureIndex
(packages/mongo/mongo_driver.js:733:1)
at FileCollection.Mongo.Collection._ensureIndex
(packages/mongo/collection.js:620:1)
at new FileCollection (packages/vsivsi:file-
collection/gridFS_server.coffee:65:15)
at FileCollection (packages/vsivsi:file-        
collection/gridFS_server.coffee:21:24)
at app/lib/collections.js:15:12
at /meteor/containers/55bd5013-6244-5f59-9f74-
c6798eb58003/bundle/programs/server/boot.js:229:5
- - - - -

下面列出了我的collections.js文件中的代码，并在注释中注明了第15行。它基于Meteor文件集合示例应用程序第10行。请注意，MD5实际上是一个相当长的标识符，但我不确定Mongo是如何/是否使用它的。无论如何，它在localhost上工作。

Meteor.startup(function () {
  console.log('collections are loading');
  myData = FileCollection('myFiles', {   // This is line 15 that triggers error
    resumable: true,                        
    http: [                                 
      {                                     
        method: 'get',
          // This GET routes path like /gridfs/myFiles/md5/9f4cd4e1d9e7cb1273ad2860fa909398.jpeg                 
        path: '/md5/:md5',                  
          // note that my :md5 also contains suffix with media type. Suffix was appended in link helper
          // I added suffix so that other programs can determine MIME type from URL's suffix, without reading file header
        lookup: function (params, query) {  
          // params.md5 contains more than the MD5 and hence needs to be split to get true MD5 portion
          var tempArray = params.md5.split('.');
          var firstHalf = tempArray[0];     // heres the MD5 part to ensure that Vaughn's code isn't affected
          return {
            md5: firstHalf                 // a query mapping url to myFiles
          };
        }
      }
    ]
  });
});

Answer 1

看来您的问题与此处已关闭的问题有关:https://github.com/vsivsi/meteor-file-collection/issues/55

您的本地db名称可能比在Meteor.com环境中分配给您的db名称短得多。

尝试添加类似于

   resumableIndexName: 'fci', 

   resumable: true,