Created attachment 849748 [details]
The main configuration of pure-ftpd service

Description of problem:
Change the parameters of "KeepAllFiles" and "NoTruncated",use two or more FTP Client to upload the same file, after the tranfer process finished ,the file on the server is corrputed, some is truncated,some are larger than normal .


Version-Release number of selected component (if applicable):
Kernel Version：2.6.32-131.0.15.el6.i686
Linux Issue  Version： Red Hat Enterprise Linux Server release 6.1 (Santiago)
Pure-ftpd Version ：pure-ftpd-1.0.36-1.el6.rf.i686
pure-ftpd main configuration file： please refer to the attachment.

How reproducible:



Steps to Reproduce:
(1) File is truncated
1. Edit the pure-ftpd main configuration file pure-ftpd.conf,set "NoTruncated  yes." 
2.Execute command: #service pure-ftpd restart
3.Uupload a  big file (More then 200 MB) to the server ,when almost 70% is landing on the server , stop the FTP Client ,then few minitues later, I try to going on the uploading process. after the FTP Client reminder that the transfer process is finished, Check the file on the server, , the size of the file only 21MB (almost equal 30% amount)

Actual results:
The file is truncated

Expected results:
The file is unbroken.

Additional info:

(2) File is become larger than normal
1)Edit the pure-ftpd.conf, set "NoTruncate no" and "KeepAllFiles yes"
2)Execute the command: #service pure-ftpd restart
3)Delete the broken file on the server, and use two FTP Clients  upload local one  again.  When one FTP Client  is running-upload the file. Then, run the other one , and upload the same file to the server on the same directory. when the tranfer process is over,check the file on the server

Actual results:
The file on the server is larger than its normal filesize.

Expected results:
The second FTP Client should get 550 Code.