I have a website where i upload a zip file and then the serverside decompresses it. i've since moved to amazons S3 service which does not allow such things as decompressing.
I'm wondering, is there a way to check or monitor the status of that zip file- and then run my model/method for pushing to s3? i'd like to run it immediately after it's decompressed- otherwise i'd try a cronjob or something.
The only conclusion i can think of right now is to output the files unzipped in my view. then selecting those files and submitting again to the method for uploading. but this seems cumbersome.
any thoughts on this?
Related
I want to use RoxyFileMan to manage uploaded images and files. But I should save them on the server. As you know, RoxyFileMan Upload uploads files and images in a folder named Uploads in a fileman directory. We can change FILES_ROOT to another local path to change the directory files get uploaded to.
But, I want to upload files on the server and then read them from the server after they've been uploaded so that they can be edited in ckeditor.
Can anyone please provide advice/guidance on how to achive this outcome?
It's not very clear how your question is meant, but if I understand you correctly, you are using RoxyFileMan on a local server and want to upload files to a remote online server, right?
Roxy uploads files to a directory on the server it is run from. Which means if run from localhost, it will use directory on your localhost. If run from a server, it will use a directory on server.
As far as my knowledge goes, you cannot upload from a localhost to an online server directly.
You could maybe achieve that using some custom script to open an FTP connection, but then you would have to also remake all the code to also load images from there... which would be rather silly.
I have a program that uploads files to a ftp server. If upload is complete then I delete the files. Occasionally the files are not deleted and because the upload is automated I get an infinite loop where 100 copies of the file reach the server. If I try to manually delete the file from explorer I'm able to do it but for some reason the Deletefile command from my app doesn't work.
I've tried raising last OSError and I get nothing.
The files are stored on a mapped drive. Is there any workaround? If I upload 30 files to a ftp server sometimes one or two files cannot be deleted after loading them to the server.
Is there any way to close the file even if it is opened from another program? Something like unlocker does?
How can i see if my application is locking the file? I haven't implemented any locking mechanism inside the app.
Thanks.
I'm working with Apple's iTunes EPF data files. I'll daily need to download, unzip and then process 1-3GB of data in .tbz files every day.
I've got a Rails app, hosted on Heroku, with most asset storage being taken care of on S3.
But what I'm having trouble with is the flow for getting the EPF files from Apple.
There are 3 files I'll be downloading. Each are .tbz files varying in size from 1GB to down to ~20MB.
Heroku doesn't have a way to reliable store files, so I assume I need to download the files directly to S3? Then would I somehow unzip them there?
That's where I'm hitting a snag. I know how to actually get the files from Apple and on to S3, but decompressing them is where I'm not following.
And since the data files can be pretty large, minimizing the transfer over S3 is critical to keeping costs down.
Is there a service that can let me download the Apple files to their servers, decompress, and then upload to S3 the necessary files?
Heroku's file system is ephemeral, but you can still write out to /tmp as a temporary scratch space to download, unzip, do whatever processing you need, re-package (if needed), and then uploaded to S3. Because of automatic dyno restarts (or manual restarts), just make sure your service knows how to gracefully resume if interrupted.
I am trying to upload a zip file of 350mb - 500mb to server. It gives "ENOSPC" error.
Is it possible to upload file in chunks and receive it on server as one file ?
or
Use custom location for tmpfs, so that it will be independent of system tmp, because in my case tmp is of 128MB only.
Why not use the Web-server uploading feature like nginx-upload and apache-upload
Not sure what it is called in apache but I guess apache too has it
if you are using Nginx
there is also a nginx-upload-progress which can be helpful if you want to track the progress of the upload
Hope this help
I sort of want to do the reverse of this.
Instead of unzipping and adding the collection files to S3 I want to
On user's request:
generate a bunch of xml files
zip the xml files with some images (pre-existing images hosted on s3)
download zip
Does anybody know agood way of doing this? I think I could manage this no problem on a normal machine but Heroku complicates things somewhat in that it has a read-only filesystem.
From the heroku documentation on the read-only filesystem:
There are two directories that are writeable: ./tmp and ./log (under your application root). If you wish to drop a file temporarily for the duration of the request, you can write to a filename like #{RAILS_ROOT}/tmp/myfile_#{Process.pid}. There is no guarantee that this file will be there on subsequent requests (although it might be), so this should not be used for any kind of permanent storage.
You should be able to pretty easily write your generated xml files to tmp/ and keep track of the names, download and write the s3 files to the same directory, and (maybe?) invoke a zip command as long as the output is in tmp/, then serve the file to the browser with the correct mime type to prompt a download. I would only be concerned with how big the filesize is and if heroku has an undocumented limit on what they'll allow in the tmp directory. Especially since you are only performing this action for a one-time download in the duration of a single request, I think you have a good chance of being able to do it.
Edit: Looking around a bit, you might be able to use something like RubyZip to create your zip file if you want to avoid calling system commands.