[jira] [Created] (GUACAMOLE-1247) Failure to get SFTP list when there are many file lists

["kwangheelee (Jira)" <ji...@apache.org>]

kwangheelee created GUACAMOLE-1247:
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             Summary: Failure to get SFTP list when there are many file lists
                 Key: GUACAMOLE-1247
                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-1247
             Project: Guacamole
          Issue Type: Improvement
          Components: guacamole-client
    Affects Versions: 1.2.0
            Reporter: kwangheelee
         Attachments: err1.png, err2.png

When there are many files in the Linux directory, an error occurs and the connection is disconnected. 

Currently, there are more than 40,000 files in a specific directory, and an error occurs when searching the file list through SFTP. I think, this case is not ideal, but some users operate servers that way.

After profiling to find the cause of the problem, it seems that the connection is disconnected because a lot of time is consumed when rendering the DOM after parsing the json by getting the list of SFTP files. (Please refer to the attached photos.)
{code:java}
// guacFileBrowser.js
// Watch directory contents once file template is available            $templateRequest('app/client/templates/file.html').then(function fileTemplateRetrieved(html) {
                // Store file template statically                fileTemplate = html;
                // Update the contents of the file browser whenever the current directory (or its contents) changes                $scope.$watch('filesystem.currentDirectory.files', function currentDirectoryChanged(files) {
                    // Clear current content                    currentDirectoryContents.html('');
                    // Display all files within current directory, sorted                    angular.forEach(sortFiles(files), function displayFile(file) {                        currentDirectoryContents.append(createFileElement(file));                    });
                });
            }, angular.noop); // end retrieve file template{code}
In my opinion, it takes a lot of time to render the DOM. If you use the lazy loading technique, it seems that you can immediately show the list to the user without disconnecting.

Thanks.



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