Uploadify Flash Uploader and Random UPLOAD_ERR_CANT_WRITE errors

Posted by dcneiner on Server Fault See other posts from Server Fault or by dcneiner
Published on 2010-03-19T05:29:28Z Indexed on 2010/03/19 5:31 UTC
Read the original article Hit count: 676

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php

|

uploadify

I am using Uploadify to provide progress bar support for file uploads on a PHP app I built. It works perfectly for a few uploads,then every few uploads it fails and the data from the $_FILES array reveals an UPLOAD_ERR_CANT_WRITE error. (Error code 7).

I ran Paros proxy between my browser and the server to see the difference between a passing and failing request. The only difference was the content separator for the multi-part post which changes every time.

I would conclude this was fully a server error, except with a plain jane form, I cannot reproduce the error.

I am not a server guy, so please let me know what information is needed to troubleshoot this and I will update the question with those details.

I did place these lines in the .htaccess, but to know avail. The site is hosted on Rackspace Cloudsites so my configuration options are limited:

<IfModule mod_security.c>  
  SecFilterEngine Off
  SecFilterScanPOST Off 
</IfModule>

php_value upload_max_filesize 10M
php_value post_max_size 10M
php_value max_execution_time 200
php_value max_input_time 200

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